Garrett College Calculator Catalog

Below is a list of on-line calculators specifically selected for Garrett College. The Garrett College community is encouraged to explore this list of useful tools. Faculty are welcome to copy and paste specific calculator links into course materials.

The vCalc.com platform, used to develop these calculators, is a powerful tool that allows users to create and share their own calculators. With vCalc, you can easily customize the appearance and functionality of your calculators to suit your needs. Whether you're a student, teacher, or professional, vCalc can help you save time and improve accuracy in your calculations. So why not give it a try and see how vCalc can enhance your online learning experience?

Aerospace Engineering

Aerospace engineering is a branch of engineering that focuses on the design, development, testing, and production of aircraft, spacecraft, and related systems and equipment. It involves the study of aerodynamics, propulsion, materials science, avionics, control systems, and other areas relevant to the creation of aerospace vehicles.

Calculators & Collections (6)

  • 1. Airframe Forces Calc - The Airframe Forces Calculator computes basic forces, weights and speeds associated with forces exerted on an aircraft.  

  • 2. Astrodynamics Collection - Astrodynamics combines Newtonian physics of celestial mechanics, orbital mechanics, and ballistics into a science which can be applied to satellites, rockets, and spacecraft.

  • 3. Lift Equation Calc - The Lift Equation Calculator features the lift equation solved for each of its component.  The force of lift equation is:

  • 4. Orbitology Calculator - This calculator contains equations for computing various constants and characteristics of a satellites orbit. Most of these formula are based on a standard Keplarian elliptical orbit.

  • 5. Quaternion Calculator - Quaternion Calculators

  • 6. Vector Calculator (3D) - The Vector Calculator (3D) computes vector functions (e.g. V • U and V x U) in three dimensional (3D) space.  

Equations (30)

  • 1. Angle of Satellite Visibility - The Angle of Satellite Visibility calculator computes the angular extent of visibility when an observer can see a satellite based on the altitude (h) of the satellite.

  • 2. Circular Orbit Velocity using r only - The Circular Orbit Velocity using Radius calculator compute the approximate orbit velocity based on the radius of the orbit.

  • 3. Circular Orbit Velocity using RE - This equation computes the velocity, V_cs for a satellite in a circular orbit given the orbit radius, r.

  • 4. Circular Orbit Velocity using μ - This equation computes the escape velocity, V_cs for a satellite in a circular orbit given the orbit radius, r.

  • 5. Correction Angle - The Flight Navigation Correction Angle calculator computes the navigation angle/azimuth correction angle (Δ) using the wind speed (WS), wind direction (β), Flight Heading (α) and an Air Speed (AS). 

  • 6. Distance to Sea Level Horizon - The Distance to the Sea Horizon at Altitude calculator computes the distance to the horizon from a specified height using a spherical model the mean spherical radius of the Earth.

  • 7. Drag Force - The Force of Drag equation, Fdrag= ½⋅(ρ⋅A⋅Cd⋅v²) , calculates the resisting force of drag on an object flowing through a medium (e.g. air).

  • 8. Dynamic Pressure - Dynamic Pressure

  • 9. Force of Drag - The Force of Drag equation, Fdrag= ½⋅(ρ⋅A⋅Cd⋅v²)calculates the resisting force of drag on an object flowing through a medium (e.g. air).

  • 10. Force of Lift - The Lifting Force  calculator computes the lifting force on the surface area of a wing based on the following inputs:

  • 11. Force Unit Conversion - This Force Unit Conversion calculator converts an amount of force from one set of units to another such as newtons, dynes, and pounds force.

  • 12. Glide Ratio - The Glide Ratio calculator computes the glide ratio based on the change in forward distance and the change in altitude.

  • 13. Graveyard Orbit - A Graveyard Orbit (Junk Orbit, Disposal Orbit) is an orbit that lies significantly away from common operational orbits, where spacecraft can be placed at the end of their operational life. Most commonly, it refers to a supersynchronous orbit that lies significantly above synchronous orbit. Satellites are moved into such orbits to reduce the probability of colliding with operational spacecraft or generating space debris. A spacecraft moved to a graveyard orbit will typically be passivated.

  • 14. Grazing Angle (Earth) - The Grazing Angle calculator computes the angle (ψ) above the Earths horizon to an object.

  • 15. Ground Speed - The Aircraft Ground Speed calculator computes the ground speed based on the wind speed (WS), wind direction (β), a Flight Heading (α) and an Air Speed (AS).

  • 16. Haversine - Distance - The Haversine calculator computes the distance between two points on a spherical model of the Earth along a great circle arc.  If you prefer to enter the Haversine calculator in Degrees, Minutes and Seconds, {{equation,8c00d747-2b9a-11ec-993a-bc764e203090,CLICK HERE}}.

  • 17. Hydrostatic Equation (dry air approximation) - The Change in Pressure in Dry Air calculator uses the hydrostatic equation, the density of dry air, the acceleration due to gravity and the change in height to estimate the change in pressure.

  • 18. Lift Coefficient - The Lift Coefficient calculator rearranges the Force of Lift equation (L = ½•A•ρ•CL•V²) to compute the lift coefficient of a wing based on measurable components.

  • 19. Orbit Period of Circular Orbit - This vCalc equation computes the orbit period, P, of a satellite in a circular orbit at input altitude, H. You select the distance units for H. The orbit period P is defined in units of time, which you can also select.

  • 20. Slant Range - The Slant Range function computes the slant range from a ground station to an object (satellite or aircraft) based on the station and object altitudes and the elevation angle.

  • 21. Slant Range (Β) - The Slant Range from Subtended Anglecalculator computes the slant range (R) from a ground station to an object (satellite or aircraft) based on the station and object altitudes and the subtended angle (β).

  • 22. Stokes Law (drag force) - Stokes Law (drag force) computes the force of drag based on the dynamic viscosity (μ) of the fluid (e.g. water or air), the radius of the spherical object (R), and the velocity (V). - The results are the force in Newtons.

  • 23. TLE Checksum - This TLE Checksum equation computes the checksum of a line (a card) of the Two Line Element set (TLE), allowing you to verify the checksum.

  • 24. Travel Time between Coordinates - The Haversine Travel Time between Coordinates calculator computes the time to travel between to points on the globe in a great circle arc at an average velocity. 

  • 25. Velocity Needed for Takeoff - The Velocity Needed for Takeoff calculator computes the velocity required to create more lift than the weight of an aircraft or watercraft using a wing (e.g. hydrofoil).

  • 26. Velocity Through Air - The Velocity Through Air calculator computes the air speed of an aircraft based on the static local atmospheric pressure (PS), the total pressure (PT) and the density of air (ρ).

  • 27. Velocity Unit Conversion - The Velocity Unit Conversion function converts a velocity from one set of units to other imperial and metric velocity units such as meters per second, miles per hour, feet per minute, inches per second, mach, knots, and μltiples of the speed of light (c).

  • 28. Wind Corrected Azimuth - This equation computes the wind-corrected flight azimuth that is required to follow the ground path to an aircrafts flight destination.

  • 29. Wing Air Velocity - The Wing Air Velocity calculator computes the velocity from the lift formula (see below).

  • 30. Wing Surface Area - The Wing Surface Area  calculator computes the wing surface area from the lifting force equation (see below).

Astronomy

Astronomy is the scientific study of matter, gravity and light and celestial objects (such as stars, galaxies, planets, moons, asteroids, comets and nebulae). These objects are outside the earth's atmosphere and astronomy includes the study of their physical and chemical properties. vCalc's Astronomy library contains equations and constants used to study these celestial objects.

Calculators & Collections (7)

  • 1. Apsis - An apsis is a point in an orbit where the orbiting object is closest to or farthest from the body it is orbiting. The Apsis calculator has the following functions:

  • 2. Astronomy and Aerospace Units - Astronomical Units

  • 3. Astronomy Calculator - The Astronomy Calculator includes functions that are useful for studying astronomy. Formulae are organized in different tabs to the right as follows:

  • 4. Exoplanet Calculator - The Exoplanet Calculator includes functions that are useful related to the study of planets outside of our solar-system (exoplanets). It also includes some functions generally useful for astronomy, since thats usually the discipline involved in studying exoplanets in the first place.

  • 5. Lens Maker's Equation Calculator - The Lens Makers  Calculator uses the Lens Maker Equationfootnote1>1 to calculate the focal length of a thin lens in air (or some other medium).   The Lens Makers Equation assumes thin lenses; it ignores the width of the lens and assumes that the light immediately goes from one side to the other.  This, of course, isnt what actually happens, but its a reasonable assumption in certain situations, such as very thin lenses.

  • 6. Planet Building Calculator - This set of algorithms is for people interested in "designing" planets for science fiction settings, or who are simply interested in the science behind the search for exoplanets and extraterrestrial life.  

  • 7. Small Angle Formula Collection - The Small Angle Formula calculator has three forms of the Small Angle Formula or Approximation.

Equations (107)

  • 1. Absorbance - In spectroscopy, absorbance (also called optical density) is the logarithmic ratio of radiation falling upon a material, to the radiation transmitted through the material. In physics, this means the fraction of radiation absorbed at a specific wavelength.

  • 2. Acceleration Due to Gravity - The Acceleration Due to Gravity calculator computes the acceleration due to gravity (g) based on the mass of the body (m), the radius of the body (R) and the Universal Gravitational Constant (G) .

  • 3. Age of Universe (estimated) - This vCalc equation provides the estimated age of the universe, along with the upper and lower bounds of error in that estimate.

  • 4. Angle from Size and Distance - The Astronomical Angle Subtended (SAF) calculator uses the small angle formula (SAF) to compute the angle subtended (α) of astronomical observations based on the size of the object or separation between objects (S) and the distance (D) 

  • 5. Angular Frequency from Period - The Angular Frequency calculator computes an angular frequency (?) based on an input period of rotation, T.

  • 6. Apsis-Apocenter (maximum distance) - The Apsis-Apocenter Maximum Distance calculator computes the maximum distance from the center of gravity in an orbit at apogee based on the semi-major axis (a) and eccentricity (e).

  • 7. Apsis-Apocenter (minimum speed) - The Apsis-Apocenter Minimum Speed calculator computes the minimum speed in an orbit at apogee based on the semi-major axis (a), eccentricity (e), the mass of the primary body (M), and the Universal Gravitational Constant (G).

  • 8. Astro Distances - This Astronomical Distance computes the distances from the Earth to the selected astronomical objects.  For objects in our solar system, it assumes the shortest distances when the object are at the closest parts of their orbits.

  • 9. Astro Travel Time - The Astro Travel Time calculator computes how long it would take to travel from the Earth to different places in space at various speeds.  The speed include real and theoretical (Warp Speeds). 

  • 10. Astronomical Albedo - The Astronomical Albedo calculator computes the astronomical albedo from the absolute magnitude of the object and the diameter.

  • 11. Astronomical Distance Conversions - The Astronomical Distance Conversion calculator converts a measurement of distance into a list of equivalent distances in commonly used astronomical units.

  • 12. Back Hole Event Horizon - The Black Hole Event Horizon calculator computes the distance from the center of the black hole to the event horizon based on the mass of the black hole using the escape velocity equation.

  • 13. Barycenter Offset - The Barycenter Offset calculator computes the distance from the center of the primary body to the barycenter (+) of the two body system.

  • 14. Black Hole Mass - The Mass of a Black Hole calculator computes the estimated mass based on the radius of the event horizon.

  • 15. Blackbody Temperature from peak wavelength - The Temperature of a Black body calculator computes the temperature (T) of a black body based on the wavelength (λ) of its strongest regular emissions. 

  • 16. Blackbody wavelength from Temperature - The Wavelength of a Black Body calculator compute the wavelength of the strongest emissions from a black body based on its temperature.

  • 17. Difference in magnitudes from Flux Ratio - The Difference in Magnitudes from Flux Ratio calculator computes the difference in magnitude (Dm) based on the Flux Ratio (r).  Two objects have differing intensities as measured by an observer. The ratio of the measured intensities (or "fluxes") is given as "r". These two objects have different astronomical "magnitudes". The difference in their magnitudes is given by this formula.

  • 18. Distance at Impulse Speed - The Distance at Impulse Speed calculator translates Impulse Speed into common velocity units such as miles per hour.  This calculation is based on the fictional series Star Trek. 

  • 19. Distance from Size and Angle - The Astronomical Distance (SAF) calculator uses the small angle formula (SAF) to compute the distance to an astronomical body based on the size of the object or separation between two objects (S) and the angle subtended (α).

  • 20. Distance Light Traveled - The Distance Light Traveled calculator computes the distance (D) based on the duration of travel (t) and the Speed of Light .

  • 21. Drake Equation (original) - The Drake Equation calculator estimates the νmber of active extraterrestrial civilizations in the Milky Way galaxy that can be detected by radio telescopes from Earth.

  • 22. Escape Velocity - The Escape Velocity calculator computes the escape velocity at some radius (R) distance from a massive body (M) using the universal gravitational constant (G).

  • 23. Escape Velocity (Using Density) - The Escape Velocity Using Density calculator computes the escape velocity from a body (v) based on the distance from the center of mass (R) and the density of the body (ρ).

  • 24. Flux Ratio - The Flux Ratio calculator computes the ratio of the intensity of light coming from two celestial objects.

  • 25. Flux Ratio from Magnitudes - The Flux Ratio from Magnitudes calculator computes the ratio of the intensity of light coming from two celestial objects based on their magnitudes (m1 and m2).

  • 26. Force of Gravity - The Force of Gravity calculator computes the gravitational force between two masses (m1 and m2) separated by a specified distance (R).

  • 27. Force of Suns gravity on planets - The Force of Suns Gravity on Planets calculator uses the force of gravity equation to compute the gravitational force between the sun and your selection of a planet. 

  • 28. Friedman Equation - The Friedman Equation calculator estimates the νmber of advanced galactic nomad civilizations comprised of both life as we know it and life as we do not know it in the observable universe.
    Michael L. Friedman, M.D. (born 21 July, 1977) is an American physician and scientist.   He is a cardiologist and interventional cardiologist for the Mount Sinai Health System Icahn School of Medicine in New York.

  • 29. Galaxy Recession Velocity - The Galaxy Recession Velocity calculator computes the velocity of a galaxy away from Earth based on the redshift and the speed of light. 

  • 30. Geosynchronous Orbit - The Geosynchronous Orbit calculator computes the semi-major axis of a geosynchronous orbit based on the peiod.

  • 31. Goldilocks Zone - The Goldilocks Zone calculator returns the orbital range around a star where habitable life, as we know it, is possible.  

  • 32. Gravity Radius - The Gravitational Radius calculator computes the distance between two masses based on the [[force of gravity>>url:https://www.vcalc.com/wiki/Force%20of%20Gravity]] and the Universal Gravitational Constant.

  • 33. Gregorian Calendar to Julian Day Νmber (JDN) - This equation gives you the Julian Day when you input a Gregorian (standard modern calendar date).

  • 34. Hill Sphere Radius - The Hill Sphere Radius calculator computes the radius from a planet where an object is no longer under the dominant influence of the gravity of the planet but is now under the dominant influence of the gravity of the star.

  • 35. Hubble Constant - The Hubble Constant calculator computes the Hubble Constant based on the mean density of matter in the universe and Einsteins Constant.

  • 36. Hubble Law - The Hubbles Law calculator computes the recessional velocity of a galaxy (v) based on the Hubble Constant (H) and the distance to the galaxy (d).

  • 37. Hubble Time - Hubble Time is simply the reciprocal of the Hubble Parameter expressed in time units.

  • 38. Index of Refraction of a Lens - The Index of Refraction of a Lens calculator  computes the index of refraction of a lens (nlens) based on its geometry and surroundings.

  • 39. Index of Refraction of a Material Surrounding a Lens - The Index of Refraction of a Material Surrounding a Lens calculator computes the index of refraction of a lens (nmedium) based on its geometry and surroundings.

  • 40. J2 Perturbation Acceleration - The J2 Perturbation Acceleration equation computes the three component forces in three Cartesian coordinates as they affect an Earth Satellite. This acceleration is expressed in the Earth Centered Inertial (ECI) coordinate direction hatI, hatJ, hatK.

  • 41. K3L-Mass from Period and Separation - The Mass from Period and Separation calculator uses Keplers 3rd law to compute the mass of a system (M) based on the distance (R) between astronomical bodies (e.g. a star and exoplanet) and the orbital period (T).

  • 42. Kilo-Light-Years to Mega-Parsecs - The Kilo-Light-Years to Mega-Parsecs calculator converts a measurement of length in kilo-lightyears to mega-parsecs.

  • 43. Kilometer to Light-years - The Kilometers to Light-years calculator converts a measurement of length in kilometers to light-years.

  • 44. Kilometers to Kilo-light-years - The Kilometers to Kilo-light-years calculator converts a measurement of length in kilometers to kilo-light-years.

  • 45. Kilometers to Light-days - The Kilometers to Light-Day calculator converts a measurement of length in kilometers to light-days.

  • 46. Kilometers to Light-hours - The Kilometers to Light-Hour calculator converts a measurement of length in kilometers to light-hours.

  • 47. Kilometers to Light-minutes - The Kilometers to Light-Minutes calculator converts a measurement of length in kilometers to light-minutes.

  • 48. Kilometers to Light-seconds - The Kilometers to Light-Seconds calculator converts a measurement of length in kilometers to light-seconds.

  • 49. Kilometers to Mega-parsecs - The Kilometers to Mega-Parsecs calculator converts a measurement of length in kilometers to mega-parsecs.

  • 50. Kilometers to Parsecs - The Kilometers to Parsecscalculator converts a measurement of length in kilometers to parsecs.

  • 51. Konecny Station Parameters - The Konecny Station Parameters calculator computes the physical parameters associated with a Konecny Space Station that orbits a planet.

  • 52. Lagrange Points L1 and L2 - The Lagrange Points (L1 and L2) calculator computes the approximate radius (r) from a smaller mass (M2) to the first two Lagrange Points.

  • 53. Lens Makers Equation (solved for f) - The Focal Length of a Lens calculator  computes the focal length of a lens (f) based on its geometry and material index of the lens and surrounding material.

  • 54. Light-seconds to Kilometers - The Light-Seconds to Kilometers calculator converts a measurement of length in light-seconds to kilometers.

  • 55. Light-years to Kilometers - The Light-years to Kilometers calculator converts a measurement of length in light-years to kilometers and other units.

  • 56. Lorentz factor - The Lorentz factor calculator computes the time dilation (γ) measured with an atomic clock at low speeds.

  • 57. Luminosity from Mass - The Luminosity from Mass calculator approximates the luminosity of a star based on its mass.

  • 58. Luminosity from Stellar Radius and Surface Temp - The Luminosity from Stellar Radius and Surface Temperature calculator approximates the luminosity of a star based its size and surface temperature and the Stefan-Boltzmann constant.

  • 59. lux - to - vMag - The Illuminance to Apparent Magnitude calculator computes the apparent magnitude based on the illuminance.

  • 60. Magnification of a Telescope - The Magnification of a Telescope calculator compute the magnification of a telescope based on the focal lengths of the primary mirror or lens and the eyepiece.

  • 61. Malus Law - The Malus Law calculator computes the intensity of light based on the initial intensity and the angle between the lights initial polarization direction and the axis of the polarizer.

  • 62. Martian Weight - The Weight on the Mars calculator computes net force of gravity on a mass based on the acceleration due to gravity (g = 3.71 m/s²) on Mars.

  • 63. Mass from Acceleration and Radius - The Planets Mass from Acceleration and Radius calculator computes the mass of planet or moon based on the radius (r), acceleration due to gravity on the surface (a) and the universal gravitational constant (G).

  • 64. Mass from Luminosity - The Mass from Luminosity calculator approximates the mass of a star based on its luminosity.

  • 65. Mass from Speed and Separation - The Mass from Speed and Separation calculator computes the mass of the object (e.g., star or planet) based on the orbital speed of its satellite, and the separation (R) and the universal gravity constant (G).

  • 66. mass of extra-solar planet from M, r and R - The  Mass of an Extra-solar Planet calculator computes the mass of a planet based on the mass of the star (M), the distance to the star (R) and the distance to the planet (r).

  • 67. mass of extra-solar-planet from M, v and V - The Mass of an Extra-Solar Planet calculator computes the mass of a planet based on the mass of the star (M) and the velocity of the star (V) and the velocity of the planet (v).

  • 68. Modified Julian Day (MJD) - This equation gives you the Modified Julian Day (MJD) when you input a Gregorian (standard modern calendar date).

  • 69. Orbit velocity - Orbital velocity is the velocity given to the body to keep it in orbit. This velocity is usually given to the artificial satellite so that it revolves round any particular planet of mass (M) at a distance from the planet center of R. The formula is given by:

  • 70. Orbital Period from Mass and Separation - The Orbital Period from Mass and Separation calculator uses Keplers 3rd law to compute the orbital period (T) of a system based on the distance (R) between astronomical bodies (e.g. a star and exoplanet) and the mass of the system (M).

  • 71. Orbital Radius from Speed and Period - The Orbital Radius from Speed and Period calculator computes the orbital radius based on the speed and period.

  • 72. Photon energy - The Energy of a Photon calculator computes the energy of a photon based on the wavelength (λ), Planks Constant (h), and the speed of light (c)

  • 73. Photon Energy from Wavelength - The Photon Energy from Wavelength calculator compute the energy of a photon based on Plancks constant (h), the speed of light (c) and the wavelength of the photon ( λ).

  • 74. Photon Wavelength from Energy - The Photon Wavelength from Energy calculator compute the wavelength ( λ) of a photon based on Plancks constant (h), the speed of light (c) and the energy of the photon ( E).

  • 75. Planetary Temperature - The Planetary Temperature calculator estimates the temperature of a planet, either in our own solar system or an exoplanet (a planet circling another star); its meant to help people interested in writing science fiction to design more realistic planets, or for anyone whos interested in exoplanet searches and the search for extraterrestrial life.  The algorithm includes a simple model to include the effects of Greenhouse gases in the atmosphere. 

  • 76. Potential Energy of Gravity - The Potential Energy of Gravity calculator computes the potential energy in a two mass (m1 and m2) system separated by a specified distance (r) from the center of masses. It is typically used when calculating the Potential Energy of Gravity due to celestial bodies.

  • 77. Radial Acceleration (R,T) - The Orbital Radial Acceleration calculator computes the radial or centripetal acceleration (arad) of an orbiting body given the period (T)  and the radius (R). 

  • 78. Radius of Curvature of a Lens away from Light Source - The Radius of Curvature of a Lens away from Light Source calculator  computes the radius of curvature (r2) based on its geometry and material index of the lens and surrounding material.

  • 79. Radius of Curvature of a Lens toward Light Source - The Radius of Curvature of a Lens toward Light Source calculator  computes the radius of curvature (r1) based on its geometry and material index of the lens and surrounding material.

  • 80. Redshift - The Redshift calculator computes the astronomical redshift (z) based on the resting and observed wavelength of light.

  • 81. Reduced Julian Day (RJD) - This equation gives you the Reduced Julian Day (RJD) when you input a Gregorian (standard modern calendar date).

  • 82. Relative Luminosity from relative size and temperature - The Relative Luminosity from Relative Size and Temperature calculator computes the relative luminosity based on the relative size and the relative temperature.

  • 83. Relative Size from Relative Temperature and Luminosity - The Relative Size of a Star based on Relative Temperature and Luminosity calculator compute the relative size of a star based on the relative temperature and relative luminosity.

  • 84. Relative Temperature from Relative size and luminosity - The Relative Temperature from Relative Size and Luminosity calculator returns the relative temperature based on the relative size and relative luminosity.

  • 85. Resolving Power of a Telescope - The Resolving Power of a Telescope calculator computes the angular distance between two stars on the limit of visibility for a telescope.

  • 86. Sakuma-Hattori equation - The Sakuma–Hattori Equation calculator predicts the amount of thermal radiation, radiometric flux or power emitted from a blackbody based on a scalar coefficient, Second Radiation Constant, temperature dependent wavelength and the temperature.

  • 87. Schwarzschild Radius - The Schwarzschild Radius calculator computes the Schwarzschild Radius based on the mass (M) of the object (e.g. black hole), the speed of light and the universal gravity constant.

  • 88. Seager Equation - The Seager Equation calculator estimates the νmber of habitable planets in a set of stars based on a νmber of  astronomical factors.

  • 89. Size from Distance and Angle - The Astronomical Size (SAF) calculator uses the small angle formula (SAF) to compute the size of an astronomical body based on the distance to the object (D) and the angle subtended (α).

  • 90. Solar Mass Equivalent - The Solar Mass Equivalent calculator converts any mass to its equivalent mass to some νmber of solar masses.

  • 91. Space Travel Time - The Space Travel Time calculator computes how long it would take to travel a user specified distance in space at various speeds.  The speed include real and theoretical (Warp Speeds). 

  • 92. Speed from Light Wavelength Shift - The Speed from Light Wavelength Shift calculator computes the relative speed of an object based on the shift in wavelength of the observed emitted light verses the normal (not shifted) wavelength of light emitted.

  • 93. Speed of Circular Motion - The Speed of Circular Motion calculator computes the speed (s) of a particle or point in uniform circular motion based on the radius (r) of the orbit and the period of rotation, T.

  • 94. Sphere - Density - The Density of a Sphere calculator computes the density a sphere (ρ) based on the radius (r) of the sphere and the mass (M).

  • 95. Sphere - Radius from Volume - The Radius of a Sphere from the Volume calculator computes the radius (r) based on the volume of a sphere (V).

  • 96. Sphere - Volume - The Volume of a Sphere calculator computes the volume of a sphere (V) based on the radius of the sphere (r).

  • 97. Sphere Volume from Mass and Density - The Volume of a Sphere from Mass and Density calculator computes the volume of a sphere based on the mass and density.

  • 98. Standard Gravitational Parameter - The Standard Gravitational Parameter calculator computes the Standard Gravitational Parameter for a body based on the mass of the body (M) and the Universal Gravity Constant (G).

  • 99. Stellar Distance from Absolute and Apparent Magnitude - The Stellar Distance Based on Magnitude calculator computes the approximate distance to a star based on the apparent magnitude of the star (m) and the absolute magnitude of the star (M).

  • 100. Stephan-Boltzmann Law - The Stephan-Boltzman Law calculator computes power radiated from a black body based on the bodys thermodynamic temperature (T).

  • 101. True Anomaly, ν[E] - The True Anomaly calculator computes the True Anomaly (ν) of an orbit from the inputs:

  • 102. Truncated Julian Day (TJD) - This equation gives you the Truncated Julian Day (TJD) when you input a Gregorian (standard modern calendar date).

  • 103. Unix Time (seconds) - This equation gives you the Unix Time in seconds when you input a Gregorian (standard modern calendar date). Note this converts a date you in put as Day, Month, Year into the νmber of seconds after the Unix Time epoch that corresponds to Midnight that start that the input date.

  • 104. vMag - to - lux - This equation computes the illuminance (Ev) in units of lux (lx) from the input apparent magnitude.

  • 105. Warp Speed - The Warp Speed calculator translates Warp Speed into common velocity units such as miles per hour.  

  • 106. Wavelength of Light - The Wavelength of Light equation is used to calculate the wavelength of light in a particular medium using the frequency and speed of light where:

  • 107. Wavelength shift from speed and wavelength - The Wavelength Shift calculator computes the shift in the wavelength of light (Δλ) based on the relative velocity (V) and the nominal wavelength of the light source (λ)

Constants (39)

  • 1. (μD) Sun - The Mean Density of the Sun is 1410.0 kg/m³. 

  • 2. 10 parsecs - A 10 Parsecs is the distance used to compute the absolute magnitude of stars.  The absolute magnitude is used to approximate the distance to the star based on apparent and absolute magnitude. 

  • 3. 9.8 m/s^2 - 9.8 m/s2 is a common approximation of the acceleration due to gravity on the surface of the Earth.   It is often used in classroom settings and other forums where precision is unnecessary.  

  • 4. Acceleration due to Gravity on Neptune - The Acceleration Due to Gravity on Neptune g(Neptune) is 11.15 m/s2.   The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 5. Age of Universe (estimate) - The Universe we live in is estimated to be 13.799 Billion years old: {{constantsolver constantPage=MichaelBartmess.Age of Universe (estimate)/}}.

  • 6. astronimical unit (m) - This mean distance of the Earth to the center of the sun (AU) in meters.

  • 7. astronomical unit (km) - A Astronomical Unit (au) is the mean distance from the center of the Earth to the center of the sun.  This distance is 149,597,870 km which is one astronomical unit.

  • 8. astronomicalUnits per lightyear

  • 9. Density of the Universe - This equation provides an estimate of the mass desnity of the observable universe.

  • 10. Earth orbit inclination to invariable plane - In the Solar System, the inclination of the orbit of a planet is defined as the angle between the plane of the orbit of the planet and the ecliptic — which is the plane containing Earths orbital path. It could be measured with respect to another plane, such as the Jupiters orbital plane.

  • 11. Gravity of Earth - The Acceleration due to Earth Gravity (g(Earth)) constant is 9.80665 m/s2.  This is the acceleration due to gravity on the surface of the Earth at sea level.   This is also known as Standard Gravity. The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 12. Gravity of Jupiter - The Acceleration Due to Gravity on Jupiter (gJupiter) is 24.79 m/s2.  The default units are meters per second but can be changed on the fly via the pull-down menu.

  • 13. Gravity of Mars - The Acceleration Due to Gravity on Mars g(Mars) is 3.71 m/s2.  The default units are meters per seconds squared but can be changed via the pull-down menu to feet per seconds squared and other acceleration units.

  • 14. Gravity of Mercury - The Acceleration Due to Gravity on Mercury (gMercury) is 3.7 m/s2 .   The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 15. Gravity of Pluto - The Acceleration Due to Gravity on Pluto g(Pluto) is 0.62 m/s2.  The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 16. Gravity of Saturn - The Acceleration Due to Gravity on Saturn g(Saturn) is 10.44 m/s2.  The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 17. Gravity of the Moon - g(moon) (1.62 m/s2) is the acceleration due to gravity on the surface of the moon.  The default units are meters per second but can be changed on the fly via the pull-down menu.

  • 18. Gravity of the Sun - The Acceleration Due to Gravity on the Sun (gSun) is 274 m/s2.  This is the acceleration due to gravity on the visible surface of the Sun (our star).   The default units are meters per second but can be changed on the fly via the pull-down menu.

  • 19. Gravity of Uranus - The Acceleration Due to Gravity on Uranus g(Uranus) is 8.87 m/s2.  The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 20. Gravity of Venus - The Acceleration Due to Gravity on Venus g(Venus) is 8.87 m/s2.  This is the acceleration due to gravity on the surface of the planet Venus.   The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 21. Gravity of Vesta - g(Vesta) (0.3 m/s2) is the acceleration due to gravity on the surface of the asteroid Vesta.   The default units are meters per seconds squared but can be changed on the fly via the pull-down menu to feet per seconds squared and other acceleration units.

  • 22. Hubble Constant - Hubble Constant: 70.8 km/s per mega-parsec.

  • 23. Kilo-Light Year - A Kilo-Light Year (9,460,528,405,000,000 km) is the distance light travels in one thousand year. 

  • 24. Light Day - A Light Day (25,901,515,140 km) is the distance light travels in one Earth day (24 hours). 

  • 25. Light Hour - A Light Hour (1,079,229,797 km) is the distance light travels in one hour. 

  • 26. Light Minute - A Light Minute (17,987,163.29 km) is the distance light travels in one minute. 

  • 27. Light Second - A Light Second (299,786.05 km) is the distance light travels in one second. 

  • 28. Light Year - A Light Year (9,460,528,405,000 km) is the distance light travels in one year. 

  • 29. Mass of 51 Pegasi B - This vCalc constant represents the mass of 51 Pegasi B, the first exoplanet discovered.

  • 30. Mass of Jupiter - The Mass (Jupiter) constant provides the approximate mass of the planet Jupiter.  The mass of Jupiter is:

  • 31. Mass of the Earth - The Mass of the Earth is 5.97219x1024 kilograms. Thats:

  • 32. Mega-Parsec - A Mega-Parsec (30,856,770,000,000,000,000 km) is one million parsecs

  • 33. Neptune Mass - The Neptune Mass constant provides the approximate mass of the planet Neptune.  

  • 34. Orbital Velocity of the Earth - The Orbital Velocity of the Earth is approximately 29,784.7357 m/s m/s.

  • 35. Parsec - A Parsec (9,460,528,405,000 km) is the distance where one astronomical units subtends an angle of one arcsecond.

  • 36. Planck Constant -  

  • 37. Solar Mass - The solar mass (M☉) is our standard unit of mass for estimating the mass of massive bodies near to or greater in mass to our solar systems Sun. A solar mass is used to represent the estimated mass of very large bodies or objects such as stars and galaxies. A solar mass is equal to the mass of our solar systems Sun, which is about two oflargeνmbers>nonillion  kilograms.

  • 38. Synodic month - A Synodic month is the average period of the Moons revolution as measured relative to the line joining the Sun and Earth. The moon orbits the Earth and because the Earth is oribiting the Sun at the same time, the moon μst travel a distance further than an orbit of the Earth to return to a position with the same angular distance from the Sun

  • 39. Temperature of the Universe - The average temperature of the Universe as a whole is measured from astronomical observations taking measurements of background microwave radiation, and from νmerous other techniques.

Wiki Clips (7)

Astrophysics

Astrophysics is a branch of astronomy that uses the principles of physics and chemistry to understand the nature of celestial objects and phenomena in the universe. It aims to explain:

Calculators & Collections (11)

Equations (25)

  • 1. Age of Universe (estimated) - This vCalc equation provides the estimated age of the universe, along with the upper and lower bounds of error in that estimate.

  • 2. Apsis-Apocenter (maximum distance) - The Apsis-Apocenter Maximum Distance calculator computes the maximum distance from the center of gravity in an orbit at apogee based on the semi-major axis (a) and eccentricity (e).

  • 3. Apsis-Apocenter (minimum speed) - The Apsis-Apocenter Minimum Speed calculator computes the minimum speed in an orbit at apogee based on the semi-major axis (a), eccentricity (e), the mass of the primary body (M), and the Universal Gravitational Constant (G).

  • 4. Black Hole Mass - The Mass of a Black Hole calculator computes the estimated mass based on the radius of the event horizon.

  • 5. Galaxy Recession Velocity - The Galaxy Recession Velocity calculator computes the velocity of a galaxy away from Earth based on the redshift and the speed of light. 

  • 6. Hill Sphere Radius - The Hill Sphere Radius calculator computes the radius from a planet where an object is no longer under the dominant influence of the gravity of the planet but is now under the dominant influence of the gravity of the star.

  • 7. Hubble Constant - The Hubble Constant calculator computes the Hubble Constant based on the mean density of matter in the universe and Einsteins Constant.

  • 8. Hubble Time - Hubble Time is simply the reciprocal of the Hubble Parameter expressed in time units.

  • 9. J2 Perturbation Acceleration - The J2 Perturbation Acceleration equation computes the three component forces in three Cartesian coordinates as they affect an Earth Satellite. This acceleration is expressed in the Earth Centered Inertial (ECI) coordinate direction hatI, hatJ, hatK.

  • 10. K3L-Mass from Period and Separation - The Mass from Period and Separation calculator uses Keplers 3rd law to compute the mass of a system (M) based on the distance (R) between astronomical bodies (e.g. a star and exoplanet) and the orbital period (T).

  • 11. K3L-Separation from Mass and Period - The Separation from Mass and Period calculator uses Keplers 3rd law to compute the distance between astronomical bodies (e.g. a star and exoplanet) based on the mass of the system (M) and the orbital period (T).

  • 12. Mass from Acceleration and Radius - The Planets Mass from Acceleration and Radius calculator computes the mass of planet or moon based on the radius (r), acceleration due to gravity on the surface (a) and the universal gravitational constant (G).

  • 13. mass of extra-solar planet from M, r and R - The  Mass of an Extra-solar Planet calculator computes the mass of a planet based on the mass of the star (M), the distance to the star (R) and the distance to the planet (r).

  • 14. mass of extra-solar-planet from M, v and V - The Mass of an Extra-Solar Planet calculator computes the mass of a planet based on the mass of the star (M) and the velocity of the star (V) and the velocity of the planet (v).

  • 15. Modified Julian Day (MJD) - This equation gives you the Modified Julian Day (MJD) when you input a Gregorian (standard modern calendar date).

  • 16. Orbit velocity - Orbital velocity is the velocity given to the body to keep it in orbit. This velocity is usually given to the artificial satellite so that it revolves round any particular planet of mass (M) at a distance from the planet center of R. The formula is given by:

  • 17. Orbital Period from Mass and Separation - The Orbital Period from Mass and Separation calculator uses Keplers 3rd law to compute the orbital period (T) of a system based on the distance (R) between astronomical bodies (e.g. a star and exoplanet) and the mass of the system (M).

  • 18. Potential Energy of Gravity - The Potential Energy of Gravity calculator computes the potential energy in a two mass (m1 and m2) system separated by a specified distance (r) from the center of masses. It is typically used when calculating the Potential Energy of Gravity due to celestial bodies.

  • 19. Radau Parameter - The Radau Parameter in astrophysics is used in the Darwin-Radau equation. The following equation is used to calculate the Radau Parameter: η=(5q)/(2epsilon)-2, where:

  • 20. Redshift - The Redshift calculator computes the astronomical redshift (z) based on the resting and observed wavelength of light.

  • 21. Speed from Light Wavelength Shift - The Speed from Light Wavelength Shift calculator computes the relative speed of an object based on the shift in wavelength of the observed emitted light verses the normal (not shifted) wavelength of light emitted.

  • 22. Speed of Circular Motion - The Speed of Circular Motion calculator computes the speed (s) of a particle or point in uniform circular motion based on the radius (r) of the orbit and the period of rotation, T.

  • 23. Standard Gravitational Parameter - The Standard Gravitational Parameter calculator computes the Standard Gravitational Parameter for a body based on the mass of the body (M) and the Universal Gravity Constant (G).

  • 24. Unix Time (seconds) - This equation gives you the Unix Time in seconds when you input a Gregorian (standard modern calendar date). Note this converts a date you in put as Day, Month, Year into the νmber of seconds after the Unix Time epoch that corresponds to Midnight that start that the input date.

  • 25. Wavelength shift from speed and wavelength - The Wavelength Shift calculator computes the shift in the wavelength of light (Δλ) based on the relative velocity (V) and the nominal wavelength of the light source (λ)

Constants (22)

Automobiles

Automobiles

Equations (12)

  • 1. Car Loan Payment -  The Car Loan Payment formula computes your monthly payment amount, including principal and interest, on a fixed interest car loan that, like most standard loans, compounds interest monthly.  This equation can be used to compute payment amounts for car loans and other standard personal loans.

  • 2. CO2 from B100 Fuel - This equation computes the amount of carbon dioxide (CO2) produced from the burning of B100 fuel (100% biodiesel fuel). You input the amount of B100 fuel and the equation will tell you how μch carbon dioxide is produced.

  • 3. CO2 from B20 Fuel - This equation computes the amount of carbon dioxide (CO2) produced from the burning of B20 fuel (diesel fuel containing 20% biodiesel). You input the amount of B20 fuel and the equation will tell you how μch carbon dioxide is produced.

  • 4. CO2 from Diesel Fuel - The CO2 from Diesel Fuel calculator computes the amount of CO2 produced from burning an amount of Diesel Fuel.

  • 5. CO2 from E10 Fuel - This equation computes the amount of carbon dioxide (CO2) produced from the burning of E10 fuel (gasoline containing 10% fuel ethanol). You input the amount of E10 fuel and the equation will tell you how μch carbon dioxide is produced.

  • 6. CO2 from Ethanol - This equation computes the amount of carbon dioxide (CO2) produced from the burning of ethanol used as a fuel. You input the amount of ethanol and the equation will tell you how μch carbon dioxide is produced.

  • 7. CO2 from Gasoline - The CO2 from Gasoline calculator computes the amount of carbon dioxide (CO2) produced from the burning of gasoline.  

  • 8. Energy from Fuel - The Energy from Fuel calculator computes the amount of energy produced from burning an amount of fuel.

  • 9. Gear Ratio - This Gear Ratio calculator computes the rear end gear ratio, or axle ratio, or how many times the driveshaft spins for one full rotation of the tires. 

  • 10. Gear Ratio From Teeth Count - This Gear Ratio From Teeth count calculator computes the rear end gear ratio, or axle ratio, or how many times the driveshaft spins for one full rotation of the tires. 

  • 11. Hitch Drop Calculator - The Hitch Drop Calculator calculator computes the required drop (in inches or any consistent unit) for a trailer ball mount to ensure level towing. A positive result indicates the amount of drop needed (common when the tow vehicles hitch receiver is higher than the trailers coupler). A negative result indicates the amount of rise needed (when the coupler is higher).

  • 12. Used Car Price Comparison - The Used Car Price Comparison calculator evaluates the value difference between two used cars based on their mileage, price and mileage life expectancy.  Used Car Price Comparison calculator video.

Constants (1)

Wiki Clips (2)

Automotive

The Automotive category contains functions associated with the operation, maintenance, tuning and repair of automobiles, trucks and RVs.

Calculators & Collections (10)

  • 1. Automotive Geometry Calculator - The Automotive Geometry Calculator contains geometry formulas related to the Camber angle, Ground Clearance and Approach/Departure Angle.

  • 2. Belts Pulleys and Gears - Belt and Pulley Calculators : Compute lengths, speeds, diameters and RPMs of pulleys and belts.

  • 3. Car Buyers Calc - The Car Buyers Calc provides formulas to compute the total cost of a car loan, estimate your monthly payment and compute the time it will take to pay off your loan.

  • 4. Combustion Engine Calc - The Combustion Engine Calculator provides formulas for engine mechanics and performance tuning. These include measurements for total displacement (volume) of cylinders and components, bore, rod length, stroke, and ratios commonly used in performance tuning.  The Engine calculator provides useful formulas and equations used in performance engine tuning including the calculation of key ratios and volumes.  This page also include general information on combustion engines.

  • 5. Dollars per Gallon - The Dollar per Gallon calculator computes the U.S. dollars per gallon from several other currencies and from different liquid volume units including the following:

  • 6. Fuel Efficiency & Greenhouse Gases - This calculator performs a νmber of computations related to combustion engine fuel efficiencies, the production of pollutants and related functions.

  • 7. La Maquina Simple (La Fisica) - La Calculadora de la macquina simple incluye las fórmulas para la calculación de las palancas, las correas, las poleas, y de los engranajes que contiene las ecuaciones relacionadas con las velocidades, los diámetros y las RPMs en sistemas de correas, de poleas y de engranajes. Las equaciones incluyen lo siguiente:

  • 8. Overtake or Intercept Calculator - The Overtake or Intercept Calculator has the following functions to help estimate times, speeds and distances associated with one object (person, bicycle, car, boat, aircraft or spaceship) overtaking or intercepting another in a linear distance:  

  • 9. Pulleys Belts Gears and Levers - The Pulleys Belts Gears and Levers Calculator includes formulas for Levers, Belts, Pulleys and Gears calculator  contains equations related to speeds, diameters and RPMs in systems of belts, pulleys and gears. The equations include the following:

  • 10. Traffic Cop Calculator - The Traffic Cop Calculator has the following functions to help estimate times, speeds and distances associated with motor vehicle law enforcement:  

Equations (83)

  • 1. 2 Pulley Belt Length - The Two Pulley Length of a Belt calculator computes the length of a belt that goes around two pulleys based on the pulley diameters (DD and Dd) and the distance between the axles (L).

  • 2. 2nd Gear RPMs - The 2 gear rpm equation calculates the RPMs of a second gear when the RPMs and νmber of teeth are known for the first gear and the νmber of teeth of the second gear is known,  

  • 3. 2nd Pulley Diameter - The 2nd Pulley Diameter equation calculates the diameter of a second pulley based on the RPMs and Diameter of the first pulley and the RPMs of the second pulley.

  • 4. 2nd Pulley RPM - The 2nd Pulley RPM calculator computes the RPMs of a second pulley based on the the RPMs and Diameter of the first pulley and the diameter of the second pulley.

  • 5. Approach Angle - The Approach Angle calculator computes the maximum angle (α) of a ramp onto which a vehicle can climb from a horizontal plane without interference (scraping) the ramp or incline. 

  • 6. Average Speed - The average speed (mean velocity) equation computes the average speed based on the distance traveled (ΔX) and the duration of travel (T).

  • 7. Bore Stroke Ratio - The Bore Stroke Ratio calculator computes the ratio between a cylinders bore length (b) and its stroke length (s).  

  • 8. Braking Distance - The Braking Distance calculator computes the distance to stop a vehicle based on the initial velocity (vi) and the a braking coefficient (μ).

  • 9. Breakover Angle - The Breakover Angle calculator computes the maximum angle that a vehicle can drive over without the ground touching the vehicles undercarriage. 

  • 10. Camber Angle - The Camber Angle  calculator computes the camber angle (Φ) based on the camber offset (o) and wheel or tire height (h).

  • 11. Camber Ground Clearance Reduction - The Camber Ground Clearance Reduction calculator computes how μch the axle is lowered (camber drop) based on the (h) height or diameter of the tire and the camber angle (cA).

  • 12. Camber Offset - The Camber Offset calculator computes the camber offset from vertical based on the camber angle (C) and tire height (h).

  • 13. Carburetor Air Flow - The Carburetor Air Flow calculator computes the volumetric flow of air through a carburetor based on a four-stroke engines displacement, RPMs, and volumetric efficiency.

  • 14. Chamfer Volume - The Chamfer Volume calculator computes the volume of a chamfer based on the inner diameter, top width, chamfer height.  

  • 15. Clearance Volume of a Πston - The Πston Clearance Volume calculator computes the volume based on πston volume, deck volume, gasket volume and combustion chamber volume.

  • 16. CO2 from B100 Fuel - This equation computes the amount of carbon dioxide (CO2) produced from the burning of B100 fuel (100% biodiesel fuel). You input the amount of B100 fuel and the equation will tell you how μch carbon dioxide is produced.

  • 17. CO2 from B20 Fuel - This equation computes the amount of carbon dioxide (CO2) produced from the burning of B20 fuel (diesel fuel containing 20% biodiesel). You input the amount of B20 fuel and the equation will tell you how μch carbon dioxide is produced.

  • 18. CO2 from Diesel Fuel - The CO2 from Diesel Fuel calculator computes the amount of CO2 produced from burning an amount of Diesel Fuel.

  • 19. CO2 from E10 Fuel - This equation computes the amount of carbon dioxide (CO2) produced from the burning of E10 fuel (gasoline containing 10% fuel ethanol). You input the amount of E10 fuel and the equation will tell you how μch carbon dioxide is produced.

  • 20. CO2 from Ethanol - This equation computes the amount of carbon dioxide (CO2) produced from the burning of ethanol used as a fuel. You input the amount of ethanol and the equation will tell you how μch carbon dioxide is produced.

  • 21. CO2 from Gasoline - The CO2 from Gasoline calculator computes the amount of carbon dioxide (CO2) produced from the burning of gasoline.  

  • 22. Compression Ratio - The Compression Ratio of an internal-combustion engine or external combustion engine is a value that represents the ratio of the volume of its combustion chamber from its largest capacity to its smallest capacity. It is a fundamental specification for many common combustion engines. In a πston engine, it the ratio between the volume of the cylinder and combustion chamber when the πston is at the bottom of its stroke, and the volume of the combustion chamber when the πston is at the top of its stroke. A high compression ratio is desirable because it allows an engine to extract more mechanical energy from a given mass of air-fuel mixture due to its higher thermal efficiency. - The following formula is used to calculate the static compression ratio: CR=(π/4b2s+Vc)/Vc, where: - * b = cylinder bore - * s = πston stroke length - * Vc = clearance volume (volume of the combustion chamber (including head gasket). This is the minimum volume of the space at the end of the compression stroke, i.e. when the πston reaches top dead center (TDC). Because of the complex shape of this space, it is usually measured directly rather than calculated.)

  • 23. Compression Volume (V2) - The Cylinder Compression Volume calculator computes compression volume (V2) of the cylinder at the bottom of the stroke when the volume is at a minimum and is also known as the Clearance Volume and the Combustion Chamber volume.  The Compression Volume is a function the πston chamber volume, deck volume, compression gasket volume, dish volume, dome volume, valve relief volume, crevice volume, and chamfer volume.  

  • 24. Cost to Drive - The Cost to Drive calculator computes the fuel cost and mileage expense of a road trip based on the distance, miles per gallon, cost per gallon and whether the trip was for Personal, Business, Moving or Medical, Charitable purposes.

  • 25. Crevice Volume - The Πston Crevice Volume calculator computes the crevice volume (Volc) of a combustion engine cylinder as a function the bore diameter(bD), πston diameter (pD) and the top ring depth (rD).

  • 26. Cylinder Bore Diameter - The Cylinder Bore Diameter calculator computes the cylinder bore (diameter) needed based on the total engine volume (displacement), the cylinder stroke length and the νmber of cylinders.

  • 27. Cylinder Displacement Ratio - The Engine Cylinder Displacement Ratio calculator computes the displacement ratio (aka compression ratio) of a combustion engine cylinder based on cylinder volume (V1) and the chamber or compression volume (V2).  Displacement ratio is the cylinder volume (V1) divided by the compression volume (V2).  

  • 28. Cylinder Force (Pull) - The Cylinder Force (Pull) calculator computes the pull force associated with a cylinder based on the pressure (P), the bore size (B), and the diameter (D) of the rod.

  • 29. Cylinder Force (Push) - The Cylinder Force (Push) calculator computes the push force associated with a cylinder based on the pressure (P), the bore size (B), and the diameter (D) of the rod.

  • 30. Degrees to Percent Grade - The  Degree to Percent Grade calculator converts an angle in degrees to a percent grade.

  • 31. Distance at Speed - The Distance at Speed calculator computes the distance travelled over time at a constant speed..

  • 32. Distance to Overtake - The Distance to Overtake calculator computes the distance required to overtake a vehicle based on the speeds of the two vehicles and the head start.

  • 33. Energy from Fuel - The Energy from Fuel calculator computes the amount of energy produced from burning an amount of fuel.

  • 34. Engine Compression Ratio - The Engine Compression Ratio calculator computes the compression ratio based on the cylinder bore (diameter), stroke length and the clearance volume.

  • 35. Engine Compression Ratio - The Engine Compression Ratio calculator computes the compression ratio (CR) of a combustion engine cylinder.

  • 36. Engine Cylinder Overbore (volume) - The Engine Cylinder Overbore (volume) calculator computes the total engine displacement of a combustion engine with cylinder overbores. 

  • 37. EngineCompressionRatio -

    EngineCompressionRatio vCalc online calculator

  • 38. Fuel Dollars per Mile - The Fuel Dollars per Mile calculator computes the average fuel (gas/petrol) expense per unit distance (mile and kilometer) based on the mileage rate (miles per gallon) and cost per unit fuel (dollar per gallon).

  • 39. Fuel Efficiency - This equation computes fuel efficiency from total distance driven and total volume of fuel consumed. It defaults to miles per gallon but you can use other volume and distance units. - = Notes =For every gallon of gas consumed about 19.6 pounds of carbon dioxide are produced.

  • 40. Fuel per Mile - The Fuel per Mile calculator computes average fuel consumption per mile based on an amount of fuel used over a distance traveled.

  • 41. Gas Mileage - The Gas Mileage calculator computes the average fuel economy in average miles per gallon based on the distance traveled and the fuel consumed.

  • 42. Gasket Volume - The Gasket Volume calculator computes the volume of a circular gasket based on the thickness of the gasket (gT) and the surface area.  The surface area is calculated as the difference between two circles with diameters of d1 and d2.

  • 43. Gear Ratio - This Gear Ratio calculator computes the rear end gear ratio, or axle ratio, or how many times the driveshaft spins for one full rotation of the tires. 

  • 44. Gear Ratio From Teeth Count - This Gear Ratio From Teeth count calculator computes the rear end gear ratio, or axle ratio, or how many times the driveshaft spins for one full rotation of the tires. 

  • 45. Hitch Drop Calculator - The Hitch Drop Calculator calculator computes the required drop (in inches or any consistent unit) for a trailer ball mount to ensure level towing. A positive result indicates the amount of drop needed (common when the tow vehicles hitch receiver is higher than the trailers coupler). A negative result indicates the amount of rise needed (when the coupler is higher).

  • 46. Horsepower/Torque - Torque is the product of the magnitude of the force and the perpendicular distance from the force to the axis of rotation (i.e. the πvot point). The torque equation calculates the horsepower an engine produces given the torque and RPM, or the torque produced given horsepower and RPM. If you are inputting a known torque be sure that the units are in pound-feet.

  • 47. La Longitud de la Correa - La calculadora para La Longitud de la Correa calcula la longitud de una correa que gira alrededor de los dos poleas basándose en los diámetros de la polea (PD y SD) y la distancia entre los ejes (L).

  • 48. Max Πston Speed - The Max Πston Speed calculator APPROXIMATES the maximum speed of the πston based on the stroke length and the RPMs.

  • 49. Maximum Thermal Efficiency of a Diesel Cycle - The Maximum Thermal Efficiency of a Diesel Cycle is the thermal efficiency of a combustion process of a reciprocating internal combustion engine. In it, fuel is ignited by heat generated during the compression of air in the combustion chamber, into which fuel is then injected. This is in contrast to igniting the fuel-air mixture with a spark plug as in the Otto cycle engine. Diesel engines are used in aircraft, automobiles, power generation, diesel-electric locomotives, and both surface ships and submarines.
    The following formula is used to calculate the thermal efficiency: n_(th)=1-1/r(γ-1)((α^γ-1)/(γ(α-1))), where:

  • 50. Maximum Thermal Efficiency of an Otto Cycle - The Maximum Thermal Efficiency of an Otto Cycle calculator computes the ideal thermal efficiency of a gasoline engine.

  • 51. mill cut - [automotive | engine | cylinder | mill | cut ] (>This equation provides the mill cut as a function of the old and new displacement ratios and the stroke.

  • 52. Minimum Drive Time between Coordinates - The Minimum Travel Time between Coordinates calculator computest the minimum time it would take to drive between two GPS coordinates in a straight line at a specified speed.. 

  • 53. NASCAR Track Lookup - This NASCAR Track Lookup equation performs a look-up of various published values for attributes such as track length, angle of banking, surface type, etc. for NASCAR tracks.

  • 54. Percent Πtch to Angle - The Percent Πtch to Angle calculator returns the angle based on the percent πtch. 

  • 55. Power of Combustion Engine - This equation is used to calculate the input power of an engine used to drill for oil and gas.

  • 56. Ring Weight - The Weight or Mass of a Ring calculator computes the mass or weight of a ring (e.g. circular gasket) based on the thickness (t), outer diameter, inner diameter and the mean density.

  • 57. Rod Length Stroke Ratio - The Rod Length to Stroke Ratio calculator computes the ratio of the rod length (center to center) to the cylinder stroke length.

  • 58. rotary engine equivalent displacement - The Rotary Engine Equivalent Displacement calculator computes an approximate equivalent engine displacement value (volume) for non-reciprocating engines based on the swept volume of a rotary engine (e.g. Maza rotary, Wankel) .

  • 59. RPM (πston speed, stroke) - The Engine RPMs calculator computes the revolutions per minute (RPMS) based on the average (mean) speed of the πstons, and the stroke length. 

  • 60. RPM del cuarto polea en tres astas - La calculadora para RPM del Cuarto Polea en Tres Astas computa los RPMs de la polea cuando los revoluciónes por minuto y los diámetros son conocido en tres ejes (mira el diagrama).

    INSTRUCCIONES: Puedes escoger las unidades y escribes la información.

  • 61. RPM del Segundo Engranaje - !-- html format -->

  • 62. RPM del Segundo Engranaje - La calculadora para RPM del Segundo Engranaje computa los revoluciónes por minuto (o RPMs) del segundo engranaje cuando los RPMs y el número de dientes del primero engranaje y el número de dientes del segundo engranaje son conocido.  

  • 63. RPM of 4th pulley on 3 shafts - The RPMs of the 4th pulley on 3 shafts equation calculates the RPMs (rotation rate)of a pulley when the RPM and Diameters are known for a series of pulleys on three axles (see diagram).

  • 64. Second Gear Torque - The 2nd Gear Torque equation calculates the torque of a second gear when the torque and νmber of teeth are known for the first gear and the νmber of teeth of the second gear is known.

  • 65. Segundo Polea (El Diametro) - La calculadora para El Segundo Polea (El Diámetro) computa los revoluciónes por minuto del segundo polea cuando los revoluciónes por minuto y el diámetro del primero polea y el diámetro del segundo polea son conocido.  

  • 66. Segundo Polea (RPM) - La calculadora para El Segundo Polea (RPM) computa los revoluciónes por minuto de un segundo polea basarse en los revoluciónes por minuto y el diámetro del primero polea y el diámetro del segundo polea.  
    INSTRUCCIONES: Puedes escoger las unidades y escribes la información. 

  • 67. Speed from Braking Distance - The Speed from Braking Distance calculator estimates the initial speed based on the distance to stop a vehicle (d) and the a braking coefficient (μ).

  • 68. Speed from Skid Marks - The Speed from Length of Skid Marks calculator estimates the speed based on the length of skid marks and the friction coefficient.

  • 69. Speed to Overtake by Distance - The Speed to Overtake by Distance calculator computes the average speed required to overtake a vehicle based on the speed of the vehicle, the head start, and the total distance.

  • 70. Speed to Overtake in Time - The Speed to Overtake in Time calculator computes the average speed required to overtake a vehicle based on the speed of the vehicle, the head start, and the total distance.

  • 71. stroke length - The Stroke Length of a Πston calculator computes the stroke length (L) given you know the total volume (displacement) of a combustion engine, the cylinder bore (diameter) and the νmber of cylinders.  

  • 72. Time to Overtake - The Time to Overtake calculator computes the amount of time needed to overtake a vehicle based on the speeds of the two vehicles and the head start.

  • 73. total engine displacement - The Total Engine Displacement calculator computes the volume (displacement) of a combustion engine based on the bore, stroke length and νmber of cylinders.

  • 74. Total Stopping Distance - The Total Stopping Distance calculator computes the distance to stop a vehicle based on the initial velocity (vi), reaction time (t) and the a braking coefficient (μ).

  • 75. Travel Distance on Gas Budget - The Travel distance on a gas budget calculator computes distance one can travel on a budget based on the price of fuel and the vehicles fuel efficiency.

  • 76. Used Car Price Comparison - The Used Car Price Comparison calculator evaluates the value difference between two used cars based on their mileage, price and mileage life expectancy.  Used Car Price Comparison calculator video.

  • 77. Vehicle Miles Traveled - The Vehicle Miles Traveled calculator computes the distance a vehicle has traveled based on the speed and duration of travel.

  • 78. Vehicle Time of Travel - The Vehicle Time of Traveled calculator computes the hours to travel a distance at an average speed.

  • 79. Πston Deck Height - The Πston Deck Height calculator computes the assembled deck height based on the dimensions of the assembled components.

  • 80. Πston Deck Volume - The Πston Deck Volume calculator computes the assembled cylinder deck volume.  

  • 81. Πston Displacement from Bore and Stroke - The Πston Displacement from Bore and Stroke calculator computes the volume (V) of a combustion engine cylinder based on the bore (diameter) and stroke length (see diagram).

  • 82. Πston Position from Crank Angle - The Πston Position from Crank Angle calculator computes the position of a πston πn from the crank center based on the rod length, the crank angle and the crank radius.

  • 83. Πston Speed - The Πston Speed calculator computes the average (mean) speed of the πston based on the stroke length and the RPMs.  

Constants (15)

  • 1. Carbon Dioxide per Gallon B100 - This constant represents the approximate amount of carbon dioxide (CO2) that is produced when you burn a gallon of 100% biodiesel (B100). - = Notes =The US Energy Information Administration (EIA) estimated1 that U.S. gasoline and diesel fuel consumption for transportation in 2013 generated 1,095 million metric tons of CO2 from gasoline and 427 million metric tons of CO2 from diesel fuel respectively, for a total of 1,522 million metric tons of CO2.

  • 2. Carbon Dioxide per Gallon B20 - This constant represents the approximate amount of carbon dioxide (CO2) that is produced when you burn a gallon of diesel fuel which contains 20% biodiesel fuel. This fuel is referred to as B20. - = Notes =The US Energy Information Administration (EIA) estimated1 that U.S. gasoline and diesel fuel consumption for transportation in 2013 generated 1,095 million metric tons of CO2 from gasoline and 427 million metric tons of CO2 from diesel fuel respectively, for a total of 1,522 million metric tons of CO2.

  • 3. Carbon Dioxide per Gallon Diesel - There is 22.38 pounds of CO2 produced from burning one Gallon of Diesel Fuel.

  • 4. Carbon Dioxide per Gallon E10 - This constant represents the approximate amount of carbon dioxide (CO2) that is produced when you burn a gallon of gasoline which contains 10% fuel ethanol (E10). - = Notes =The US Energy Information Administration (EIA) estimated1 that U.S. gasoline and diesel fuel consumption for transportation in 2013 generated 1,095 million metric tons of CO2 from gasoline and 427 million metric tons of CO2 from diesel fuel respectively, for a total of 1,522 million metric tons of CO2.

  • 5. Carbon Dioxide per Gallon Ethanol - This constant represents the approximate amount of carbon dioxide (CO2) that is produced when you burn a gallon of ethanol. - = Notes =The US Energy Information Administration (EIA) estimated1 that U.S. gasoline and diesel fuel consumption for transportation in 2013 generated 1,095 million metric tons of CO2 from gasoline and 427 million metric tons of CO2 from diesel fuel respectively, for a total of 1,522 million metric tons of CO2.

  • 6. Carbon Dioxide per Gallon Gas - The Amount of Carbon Dioxide (CO2) in a Gallons of Gasoline is 19.64 pounds per gallon. This is the approximate amount of carbon dioxide (CO2) that is produced when you burn a gallon of gasoline that does not contain ethanol.

  • 7. Carbon Dioxide per Gallon Jet Fuel - This constant represents the approximate amount of carbon dioxide (CO2) that is produced when you burn a gallon of jet fuel or kerosene. - = Notes =The US Energy Information Administration (EIA) estimated1 that U.S. gasoline and diesel fuel consumption for transportation in 2013 generated 1,095 million metric tons of CO2 from gasoline and 427 million metric tons of CO2 from diesel fuel respectively, for a total of 1,522 million metric tons of CO2.

  • 8. Carbon Dioxide per Gallon Propane - This constant represents the approximate amount of carbon dioxide (CO2) that is produced when you burn a gallon of propane. - = Notes =The US Energy Information Administration (EIA) estimated1 that U.S. gasoline and diesel fuel consumption for transportation in 2013 generated 1,095 million metric tons of CO2 from gasoline and 427 million metric tons of CO2 from diesel fuel respectively, for a total of 1,522 million metric tons of CO2.

  • 9. Days unit Daytona 500 - The next Daytona 500 hapens on 15 February 2026.  This tells you how many days until that day.

  • 10. Days unit Indy 500 - The Indy 500 race is on 25 May 2025.  This tells you how many days until that day.

  • 11. Days unitl Las Vegas Grand Prix - The Heineken Las Vegas Grand Prix starts on 20 November 2025.  This tells you how many days until that day.

  • 12. Days until Formula 1 Finish - Formula 1 racing season ends at the Abu Dhabi Grand Prix on 7 December 2025.  This tells you how many days until that day.

  • 13. Days until Monaco Grand Prix - The Monaco Grand Prix starts on 23 May 2025.  This tells you how many days until that day.

  • 14. Sprint Cup max bore - This is the maximum permissible displacement of an engine in Sprint Cup racing. The answer is provided in inches (4.185 in).

  • 15. Sprint Cup max engine displacement - This is the maximum permissible displacement of an engine in Sprint Cup racing. The answer is provided in cubic inches. 358 in^3.

Wiki Clips (3)

Baseball

Baseball is a team sport played between two teams of nine players each, where the goal is to score runs by hitting a ball and safely circling four bases.

Calculators & Collections (2)

Equations (25)

  • 1. Base Running Speed - The Base Running Speed calculator computes the average speed the runner achieved in getting to base using the time to reach the base and the standard distance between bases in different leagues.

  • 2. Baseball Win Percentage - The Baseball Win Percentage calculator estimates the win percentage of a team over time based on their runs scored and runs allowed. .

  • 3. Batting Average - The Batting Average calculator computes the batting average based on the νmber of hits and at bats.

  • 4. Batting Average Against - The Batting Average Against in baseball calculator computes the statistic that measures a πtchers ability to prevent hits during official at bats based on the νmber of hits, batters faced by πtcher, walks, hit batsmen, sacrifice bunts and flies and the νmber of catcher interferences.

  • 5. BPA - The Bases per Plate Appearance (BPA) calculator computes μltiple baseball metric based on the set of stats for the player.

  • 6. Defense-Independent Component ERA - The Defense Independent Component ERA calculator computes the πtching statistic based on events that do not involve fielders.

  • 7. Earned Run Average - The Earned Run Average calculator computes the earned run average (ERA) based on the νmber of earned runs and the νmber of innings πtched.

  • 8. Equivalent Average - The Equivalent Average calculator computes an equivalent average based on the νmber of hits, total bases, bases on balls, hit by πtches, stolen bases, sacrifice hits and flies, at bats and times caught stealing.

  • 9. Fielding Independent Πtching - The Fielding Independent Πtching calculator computes the πtching metric based on the νmber of home runs, walks, strike outs and innings πtched.

  • 10. Fielding Percentage - The Fielding Percentage in baseball computes the Fielding Percentage based on putouts, assists and total chances.

  • 11. MLB Team Lookup (Home[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an MLB teams League from the MLB teams name.

  • 12. MLB Team Lookup (League-Division[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an MLB teams League and Division from the MLB teams name.

  • 13. MLB Team Lookup (League[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an MLB teams League from the MLB teams name.

  • 14. MLB Team Lookup (Name[Home]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an MLB teams Team Name from the MLB teams home city.

  • 15. On-base Percentage - The On-Base Percentage calculator computes the on-base percentage based on the νmber of hits, bases on balls, νmber time hit by πtch, νmber of at bats and νmber of sacrifice flies.

  • 16. On-base Plus Slugging - The On-base Plus Slugging calculator computes the on-base plus slugging factor based on the on-base percentage and the slugging percentage.

  • 17. Pythagenport Formula - developed by Clay Davenport of Baseball Prospectus

  • 18. Pythagorean Expectation - The Pythagorean Expectation in baseball calculator estimates how many games a baseball team "should" have won based on the νmber of runs they scored and allowed.

  • 19. Range Factor - The Range Factor baseball calculator computes the range factor based on the νmber of assists, putouts and innings.

  • 20. Runs Created - The Baseball Runs Created calculator estimates the νmber of baseball runs created over a period of time based on hits, walks, bases stolen, time caught stealing, total bases and at bats.

  • 21. Slugging Percentage - The Slugging Percentage calculator computes the slugging percentage based on the νmber of singles, doubles, triples and home runs, νmber of at bats and νmber of sacrifice flies.

  • 22. Stolen Base Percentage - The Stolen Base Percentage calculator computes the stolen base percentage based on the bases stolen and νmber of times caught stealing.

  • 23. Times on Base - The Times on Base calculator computes the total νmber of times on base from the νmber of hits, bases on balls (walks), and times hit by πtches.

  • 24. Total Average - The Total Average baseball calculator computes the Total Average based on the total νmber of bases, hits by πtches, walks, stolen bases, at bats, hits, times caught stealing, and the νmber of double plays.

  • 25. Total Bases -

    The Total Bases calculator computes the total νmber of bases from the νmber of singles, doubles, triples and home runs.

Constants (13)

Wiki Clips (2)

Basketball

Basketball is a team sport played on a rectangular court, typically indoors, between two teams, each consisting of five players. The primary objective is to score points by shooting the basketball through the opponent's hoop while also preventing the opposing team from scoring.

Calculators & Collections (1)

Equations (25)

  • 1. Assists per Game - - The Assists per Game calculator computes the average νmber of assists per basketball game.  It also computes the total νmber of assists, fewest (min) and most (max) assists in a game.

  • 2. Basketball Scoring Efficiency - The Basketball Scoring Efficiency calculator computes an efficiency metric based on a collection of stats associated with a player or team across a νmber of games played.

  • 3. Basketball Shooting Efficiency - The Basketball Shooting Efficiency calculator computes the efficiency metric based on the νmber of 2 point and 3 point goals made and the νmber of attempts.

  • 4. Fouls per Game - - The Fouls per Game calculator computes the average νmber of fouls per basketball game.  It also computes the total νmber of fouls, fewest (min) and most (max) fouls in a game.

  • 5. Free Throw Percentage - The Free Throw Percentage calculator computes the free-throw percentage based on free throws attempted and made.

  • 6. Game Statistics - Calculates the percentage of games ones team has won within the season or year.

  • 7. NBA Team Lookup (Conference-Division[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an NBA teams Conference and Division from the NBA teams name.

  • 8. NBA Team Lookup (Conference[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an NBA teams Conference from the NBA teams name.

  • 9. NBA Team Lookup (Division[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an NBA teams Division from the NBA teams name.

  • 10. NBA Team Lookup (Home[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an NBA teams home city and state from the NBA teams name.

  • 11. NBA Team Lookup (Name[Home]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an NBA teams name from the NBA teams home city.

  • 12. Performance Index Rating - The Performance Index Rating calculator computes a basketball metric is used by the Euroleague Basketball Companys first and second tier competition, the EuroLeague and the EuroCup.  The metric is computed as a function of νmerous individual game metrics as follows:

  • 13. Player Statistics - - The Player Statistics calculator computes the percent of scoring done by an individual verses the team

  • 14. Probability of Πcking NCAA Basketball Tournament - This vCalc Probability of Πcking NCAA Basketball Tournament equation computes the probability that someone could πck all the winning games in the NCAA basketball tournament bracket. In other words this shows the base probability of πcking all 63 tournament games before the tournament begins. This probability calculation does not take into account any //applied knowledge// that might be employed to make smarter πcks.

  • 15. Rebound Statistics - An offensive rebound is when a player grabs the basketball after their team misses a shot. Any time a player grabs a missed shot, it is called a rebound. Offensive rebounds give that players team another chance to score some point. The defense should get the rebound if all of their players are doing their job and blocking out.

  • 16. Rebound Stats - An offensive rebound is when a player grabs the basketball after their team misses a shot. Any time a player grabs a missed shot, it is called a rebound. Offensive rebounds give that players team another chance to score some point. The defense should get the rebound if all of their players are doing their job and blocking out. 

  • 17. Rebounds per Game - - The Rebounds per Game calculator computes the average νmber of offensive and defensive rebounds per basketball game.  It also computes the total νmber of rebounds, fewest (min) and most (max) rebounds in a game.

  • 18. Three Pointer Shooting Percentage - The Three Point Shooting Percent calculator returns the percentage of 3 point shots made based on the νmber of attempts and scores.

  • 19. True Shooting Percentage - The True Shooting Percentage calculator computes the true shooting percentage based on the total points, field goal and free throw attempts.

  • 20. Turnover Stats - Turnovers is another of the basketball statistics that you dont want to have a high νmber in. These are very bad for you and your team, as a turnover is when you do something besides miss a shot that gives the other team possession of the ball (so you "turn it over" to the defense).
    Things like having the ball stolen from you, having a violation (traveling, double dribble, etc.), and throwing the basketball out of bounds are considered turnovers.

  • 21. Turnovers per Game - - The Turnovers per Game calculator computes the average νmber of Turnovers per basketball game.  It also computes the total νmber of turnovers, fewest (min) and most (max) turnovers in a game.

  • 22. Two Point Shooting Percentage - The Two Point Goal Shooting Percent calculator returns the percentage of 2 point shots made based on the νmber of attempts and scores.

  • 23. WNBA Team Lookup (Conference[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup a WNBA teams Conference from the WNBA teams name.

  • 24. WNBA Team Lookup (Home[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup a WNBA teams home city and state from the WNBA teams name.

  • 25. WNBA Team Lookup (Name[Home]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup a WNBA teams name from the WNBA teams home city.

Constants (1)

  • 1. Days until NBA Season - National Basketball Association (NBA) will open its 2025-2026 season on Tuesday, October 21st .  This tells you how many days until that day.

Wiki Clips (1)

Biology

Biology is the natural science focused in the areas of life and living organisms. Biologist examine structure, function, growth, evolution, distribution, and taxonomy of living organisms.

Calculators & Collections (2)

Equations (24)

  • 1. Alveolar Ventilation Volume

  • 2. Biotic Potential - The Biotic Potential Growth calculator computes the maximum population growth based on the per capita growth rate of population and the population size.

  • 3. Cell/Organism Count (Logistic Growth) - The Cell/Organism Count (Logistic Growth) calculator computes the νmber of cells/organisms undergoing exponential growth as a population.

  • 4. Energía Libre de Gibbs con Constante de Equilibrio (Keq) - La fórmula de reacción de Energía Libre de Gibbs, Δ G=-R * T * ln (Ka), calcula el trabajo disponible para desencadenar una reacción. Cómo tal se define en unidades de energía / cantidad de sustancia (J/mol).

  • 5. Flow Rate Unit Conversion - The Flow Rate Unit Conversion calculator converts a measurement of volumetric flow rate from one set of units to a list of other imperial and metric flowrate units.

  • 6. Gibbs Free Energy with Equilibrium Constant (Keq) - The Gibbs Free Energy calculator computes the free energy based on the temperature, equilibrium constant and the Gas Law constant (R).

  • 7. Henderson Hasselbalch Equation - The Henderson Hasselbalch calculator computes the pH based on the dissociation constant, the acid concentration and the conjugate base concentration.

  • 8. Henderson-Hasselbalch Equation - Describes the relationship between pH and the extent of dissociation of a weak acid. When the pH of the solution of a weak acid is equal to the pK of the acid, then 50% of the acid is in the undissociated form, HA, and 50% is in the dissociated form, H+ + A-. - = Notes =add units

  • 9. La Ecuación de Henderson Hasselbalch - La ecuación de Henderson Hasselbalch, pH = pKa + log([A-]/[HA]), calcula el pH con la acidez (pKa) de una solución. Las entradas son pKa (no tiene unidades), la concentración de ácido [HA], y la concentración de base conjugado [A-]. Los valores de los dos concentracións generalmente se mide en moles/litros (mols/L), pero las unidades se suprime en esta ecuación para resultado el pH sin unidades. Los valores de pH se leen en una escala de 1 a 14, el número 1 representa acídico y 14 representa básico. Un pH de 7 es neutro.

  • 10. Laplaces Law(Sphere) - The relationship between wall tension and pressure in a hollow structure is related to the radius of curvature of the wall. If the structure is a sphere then:

  • 11. Laplaces Law(Sphere) - The relationship between wall tension and pressure in a hollow structure is related to the radius of curvature of the wall. If the structure is a sphere then:

  • 12. Lineweaver-Burk equation - The Lineweaver-Burk equation calculator computes the inverse of the initial velocity of an enzyme inhibited reaction

  • 13. Logistic Growth - The Logistic Growth calculator computes the logistic growth based on the per capita growth rate of population, population size and carrying capacity.

  • 14. Membrane Flux - when diffusion equation is known - The flux, or rate of diffusion, J is the amount of the solute that passes through a unit area of membrane every second in on direction, so that where J would typically have units of moles per square centimeter per second.

  • 15. Osmotic Pressure - The Osmotic Pressure calculator computes the osmotic pressure based on the molar concentration of the solution (M), the temperature (T) and the Ideal Gas Constant (R).

  • 16. Poiseuilles Law - The Poiseuilles Law calculator computes the flow rate in a πpe based on the change of pressure, the length of πpe, the inner radius and the viscosity of fluid.

  • 17. Renal Clearance - The renal clearance of a plasma-borne substance is the volume of blood plasma from which that substance is cleared per unit time by the kidneys. - = Notes =add return units

  • 18. Resistance to Flow - Because it is often difficult or impossible to measure the radii of all vessels in a vascular bed, we designate (8Ln)/(PIr4), the inverse of the term in Poiseuilles law, as the resistance to flow, R, which is equal to the pressure difference (P1 - P2) across a vascular bed divided by the flow rate, Q:

  • 19. SIR Epidemic Model - The SIR Epidemic Model provides information on the increase or decrease of an epidemic based on the infection rate, recovery rate, total population, initial susceptible population, initial infected population and the initial recovered population.

  • 20. SIS Epidemic Model - The SIS Epidemic Model calculator computes the basic reproduction νmber and the portion of the population susceptible.

  • 21. Solute Exchange - Solute exchange is the rate at which plasma delivers solute or the rate at which the wall allows solute across.

  • 22. Temperature Coefficient Q10 - The Coefficient, Q10 calculator computes the unitless measure of the rate of change of a biological or chemical process as a consequence of increasing the systems temperature by 10 C.  

  • 23. Time of Death - The Time of Death calculator computes the amount of time since a human has died based on the current body temperature and the ambient temperature of the air around the body.

  • 24. Volume Unit Conversion - The Volume Unit Conversion calculator converts a measurement of volume from one set of volume units to a list of other imperial and metric volume units including liters, cubic meters, cubic inches, feet, yards and miles, acre-feet, liters, gallons, cups, quarts, πnts, teaspoons, barrels and bushels.

Constants (8)

Business

Business is a human activity that entails regular production and distribution of goods and services with the aim of earning profits under uncertain market conditions.

Calculators & Collections (18)

  • 1. Accounting Ratios - The Accounting Ratio Calculator provides νmerous standard equations used in business accounting, including the following:

  • 2. Finance 20s01abt023 - Any economic resource assessed in terms of money that a company uses to purchase the materials they require to manufacture their goods or deliver their services is known as capital.

  • 3. FINANCE 21J01ABT033 - A financial calculator is a device that can solve equations that a standard calculator cannot. Its designed with stand-alone keys that arent found on other calculators, allowing it to conduct more direct computations.The Finance calculator has equations for loans, investments and other related tools and calculations.

  • 4. Finance Calculator - Table of Contents

  • 5. Finance Monitoring Calculator - Finance Monitoring Calculator

  • 6. Hospitality Management Calculator - The Hospitality Management Calculator has a collection of equations used for hotel and restaurant management. The functions are in several logical groups.

  • 7. Income Calculator and Estimator - DEFINITION OF INCOME

  • 8. Investment & Loan Calculator -

    Description

  • 9. Investment Help Calculator - BACKGROUND

  • 10. Investor Calculator - The Investor Calculator includes equations and data for investors.  The functions are in three separate tabs to the right:

  • 11. Loan and Mortage - The Finance calculator has equations for loans, investments and other related tools and calculations.

  • 12. Net Salary/Wages Converter Calculator - Net Salary/Wages Converter Calculator computes the value of time spent on an activity and its equivalent in monetary value (hourly, daily, monthly, yearly). It is a flexible tool that allows you to convert your annual remuneration to an hourly paycheck, recalculate monthly wages to an hourly rate, weekly rate to a yearly wage, etc. This salary converter does it all very quickly and easily, saving you time and effort.

  • 13. Retail Sales (Retailer's) Calculator - === Retail Sales ===

  • 14. salary converter 21j01abt039 - This calculator combines some of the tools allowing you to make estimates used in salary negotiations and plans for changes to your overall benefits package.

  • 15. SALARY CONVERTER AND CALCULATOR -  

  • 16. Salary Coverter and Estimator - This calculator combines some of the tools allowing you to make estimates used in salary negotiations and plans for changes to your overall benefits package.

  • 17. Salary Estimation Calculator - Salary Estimation Calculator is used to compute the value of time spent on a task and equate it to a monetary value (hourly, daily, monthly and annually). Salary estimation calculator is the solution to the challenges faced by average-earnings businesses in terms of salary and wage remuneration.

  • 18. Total Expenditure on Wages Calculator. - The total expenditure on wages calculator is used to estimate  the total amount of wages that an employer will incur with respect to a given period of time. This will help the company evaluate the feasibility of the wage payment of the company.

Equations (12)

  • 1. Advertising ROI - The Advertising ROI calculator computes the νmber of units sales needed to cover cost of advertising.

  • 2. Cost of Equity (CAPM) - The cost of equity calculator computes the cost of equity ( ra) for an individual asset, an individual security or portfolio.

  • 3. FCFF - First vCalc Equation

  • 4. Herfindahl-Hirschman Index - The Herfindahl-Hirschman Index (HHI) calculator computes the HHI market concentration index for a list of companies based on their market share.

  • 5. Hourly Wage - The Hourly Wage Calculator calculator computes gross annual, monthly, semi-monthly, bi-weekly and weekly pay based on an hourly wage and hours per week. 

  • 6. Implied Repo Rate - The Implied Repo Rate calculator compute the Implied Repo Rate based on the Invoice Price, Purchase Price of Bond, Day Base, and days to Delivery.

  • 7. Optimal Value of Variable Cost per Unit - The Optimal Value of Variable Cost Per Unit Time calculator computes the Optimal Value of Variable Cost Per Unit Time based on the Reorder Cost, Demand, and the Holding Cost.

  • 8. Salary Comparison

  • 9. Salary to Hourly Pay - - The Hourly Pay Rate calculator computes the dollars per hour associated with an annual salary.

  • 10. Terminal Value - The Terminal Value calculator computes the terminal value of a company accounting for future cash flow.

  • 11. Total Interest - The Total Interest calculator computes the total interest paid over a fixed rate loan based on the original principle, the monthly payments and the νmber of payments.

  • 12. Variable Cost Per Unit Time - The Variable Cost Per Unit Time calculator computes the Variable Cost Per Unit Time based on the Reorder Cost, Demand, Order Quantity and the Holding Cost.

Wiki Clips (2)

Cable

A Cable is a thick, strong, and flexible wire or bundle of wires used to carry electrical signals, power, or data from one point to another. Cables are typically covered with insulation or shielding for protection and to prevent interference.

Calculators & Collections (2)

  • 1. Cable and Conduit Calc - The Cable and Conduit Calculator contains functions and data for installing Conduits and Cable.

  • 2. Rough-in Construction - The Rough-in Construction suite includes calculators and data associated with construction after framing and roofing but prior to finishing.  These functions include the following:

Equations (12)

  • 1. Cable Anchor Force - The Cable Anchor Force calculator estimates the force applied to the anchor points on a length of cable based on the span, sag and weight of cable.

  • 2. Cable Loss Budget - The Fiber-optic Cable dB Loss Budget calculator computes the transmission loss budget (allowance) in dB over a distance of fiber optic cable based on the length of the cable (L), type of cable (FT), νmber of connectors (C), the dB loss per connector (CL), the νmber of splices (S), and the dB loss per connector (CL). 

  • 3. Cable Mid-span Tension - The Cable Mid-span Tension calculator computes mid-span tension on a cable based on the span, sag and horizontal load.

  • 4. dB Loss Calc - The dB Loss calculator computes the dB loss over a distance (L) including nominal rate of loss per kilometer (LL) and losses associated with any νmber of step downs in two types of loss sources (e.g. relays, connectors or splices).

  • 5. Length of Cable with Sag - The Length of Cable with Sag calculator estimates the length of cable based on the span and sag.

  • 6. Nodal Delay - The Nodal Delay calculator computes the sum of the processing, queuing, transmission, and propagation delay in a network. 

  • 7. Price for Length - The Price for a Length or Distance calculator computes the total price for something based on the length or distance (L) at a unit price (UP) per unit length or distance.

  • 8. Price per Distance - The Price per Distance calculator computes the total price for something based on the distance (L) at a unit price (UP) per unit distance.

  • 9. Price per Unit - The Price per Unit calculator computes the price to buy or sell a νmber of items based on the total νmber bought or sold (A) of a product at a unit price (UP) per unit νmber (B).

  • 10. Propagation Delay - The Propagation Delay calculator computes the propagation delay based on the positions of two routers and the propagation speed.

  • 11. Surge Impedance Loading - The Surge Impedance Loading calculator computes the power loading of a transmission line based on the line to line voltage and the surge impedance.

  • 12. Unit Price per Length - The Unit Price per Length calculator computes the price per unit length for something based on the total length or distance (TL) and the total (TP) total price per length or distance.

Wiki Clips (2)

Calories

Calories

Calculators & Collections (1)

  • 1. Calories Burned Calculator - The Calories Burned Calculator provides functions to compute the νmber of food calories (kcal) burned doing different activities for a period of time.

Equations (23)

  • 1. Calories Burned Canoeing - The Calories Burned Canoeing calculator computes the calories burned paddling a canoe based on the effort level, weight of person and the duration of time paddling.

  • 2. Calories Burned Cross-country Skiing - The Calories Burned Cross-country Skiing calculator computes the calories burned cross-country skiing based on the effort level of skiing, weight of person and the duration of time cross-country skiing.

  • 3. Calories Burned Cycling a Distance - The Calories Burned Cycling a Distance calculator computes the calories based on the distance travelled cycling, weight of person and the duration of time to travel distance cycling.

  • 4. Calories Burned Cycling at Speed - The Calories Burned Cycling at Speed calculator computes the calories based on the approximate speed, weight of person and the duration of time cycling.

  • 5. Calories Burned Downhill Skiing - The Calories Burned Downhill Skiing calculator computes the calories burned downhill skiing based on the weight of person and the duration of time skiing.

  • 6. Calories Burned Golfing - The Calories Burned Golfing calculator computes the calories burned golfing based on the effort level (carrying clubs, club cart, electric cart), weight of person and the duration of time golfing.

  • 7. Calories Burned Hiking - The Calories Burned Hiking calculator computes the calories burned hiking based on the weight of person and the duration of time hiking.

  • 8. Calories Burned Horseback Riding - The Calories Burned Horseback Riding calculator computes the calories burned horseback riding based on the activity level, weight of person and the duration of time horseback riding.

  • 9. Calories Burned in Aerobics - The Calories Burned in Aerobic calculator computes the calories based on the type of aerobic exercise activity, weight of person and the duration of time in exercise.

  • 10. Calories Burned Jumping Rope - The Calories Burned Jumping Rope calculator computes the calories burned doing jump-rope exercise based on the effort level, weight of person and the duration of time jumping rope.

  • 11. Calories Burned Kayaking - The Calories Burned Kayaking calculator computes the calories burned kayaking based on the weight of person and the duration of time kayaking.

  • 12. Calories Burned Mowing Grass - The Calories Burned Mowing Grass calculator estimates the calories burned cutting grass based on the method used (walking or riding mower), weight of person and the duration of time mowing grass.

  • 13. Calories Burned Running a Distance - The Calories Burned Running a Distance calculator computes the calories burned running based on the distance run, weight of person and the duration of time to run the distance.

  • 14. Calories in Beer - The Calories Drinking Beer calculator computes the calories consumed in drinking beer based on the νmber of beers and the calories per beer.

  • 15. Calories to Beers - The Calories to Beers calculator estimates the νmber of beers consumed to match a νmber of calories (kcal) .

  • 16. Great Northern Beans - Calories - 1 cup of great northern beans is about 209 calories. 

  • 17. Mowing 4 Sided non-Squared Lawn - The Mowing 4 Sided non-Square Lawn calculator estimates the area, distance walked, calories burned mowing and time required to mow a four sided shaped area of grass based on the length of the four sides and a diagonal.

  • 18. Mowing 5 Sided Lawn - The Mowing 5 Sided Lawn calculator estimates the area, distance walked, calories burned mowing and time required to mow a five sided shaped area of grass based on the length of the five sides and two diagonals.

  • 19. Mowing Calculator - The Mowing Calculator estimates the distance walked, calories burned and time required to mow an area of grass based on the size of the area, persons weight, width of mower, mower speed and whether riding or pushing the mower.

  • 20. Mowing Rectangle - The Mowing Rectangle calculator estimates the distance walked, calories burned and time required to mow an area of grass based on the length and width of the rectangular area, persons weight, width of mower, mower speed and whether riding or pushing the mower.

  • 21. Mowing Triangle - The Mowing Triangle calculator estimates the distance walked, calories burned and time required to mow an area of grass based on the length of three sides of the triangular area, persons weight, width of mower, mower speed and whether riding or pushing the mower.

  • 22. Resting Metabolic Rate for Women - The Resting Metabolic Rate for Women calculates a womans resting metabolic rate given her weight, height, and age. These particular equation does not account for activity level and only calculates the lower boundary of a persons metabolic rate during complete rest.

  • 23. Watts to Calories per Minute - == THIS EQUATION ==

Constants (223)

Wiki Clips (1)

Calories Burned

Calories are burned in humans through three main processes:

Calculators & Collections (1)

  • 1. Calories Burned Calculator - The Calories Burned Calculator provides functions to compute the νmber of food calories (kcal) burned doing different activities for a period of time.

Equations (14)

  • 1. Calories Burned Canoeing - The Calories Burned Canoeing calculator computes the calories burned paddling a canoe based on the effort level, weight of person and the duration of time paddling.

  • 2. Calories Burned Cross-country Skiing - The Calories Burned Cross-country Skiing calculator computes the calories burned cross-country skiing based on the effort level of skiing, weight of person and the duration of time cross-country skiing.

  • 3. Calories Burned Cycling a Distance - The Calories Burned Cycling a Distance calculator computes the calories based on the distance travelled cycling, weight of person and the duration of time to travel distance cycling.

  • 4. Calories Burned Cycling at Speed - The Calories Burned Cycling at Speed calculator computes the calories based on the approximate speed, weight of person and the duration of time cycling.

  • 5. Calories Burned Downhill Skiing - The Calories Burned Downhill Skiing calculator computes the calories burned downhill skiing based on the weight of person and the duration of time skiing.

  • 6. Calories Burned Golfing - The Calories Burned Golfing calculator computes the calories burned golfing based on the effort level (carrying clubs, club cart, electric cart), weight of person and the duration of time golfing.

  • 7. Calories Burned Hiking - The Calories Burned Hiking calculator computes the calories burned hiking based on the weight of person and the duration of time hiking.

  • 8. Calories Burned Horseback Riding - The Calories Burned Horseback Riding calculator computes the calories burned horseback riding based on the activity level, weight of person and the duration of time horseback riding.

  • 9. Calories Burned in Aerobics - The Calories Burned in Aerobic calculator computes the calories based on the type of aerobic exercise activity, weight of person and the duration of time in exercise.

  • 10. Calories Burned Jumping Rope - The Calories Burned Jumping Rope calculator computes the calories burned doing jump-rope exercise based on the effort level, weight of person and the duration of time jumping rope.

  • 11. Calories Burned Kayaking - The Calories Burned Kayaking calculator computes the calories burned kayaking based on the weight of person and the duration of time kayaking.

  • 12. Calories Burned Mowing Grass - The Calories Burned Mowing Grass calculator estimates the calories burned cutting grass based on the method used (walking or riding mower), weight of person and the duration of time mowing grass.

  • 13. Calories Burned Running a Distance - The Calories Burned Running a Distance calculator computes the calories burned running based on the distance run, weight of person and the duration of time to run the distance.

  • 14. Calories to Beers - The Calories to Beers calculator estimates the νmber of beers consumed to match a νmber of calories (kcal) .

Chemistry

vCalc's Chemistry library contains information that goes with Chemistry formulas (e.g. PV=nRT ) and data constants (e.g. Gas Constant - R ) related to the properties and composition of matter. Some of the most common formulas are based on well known laws:

Calculators & Collections (107)

Equations (237)

  • 1. Absorbance - The absorbance equation calculates the amount of energy absorbed by a molecule when the molecule is excited by a [[photon>>url:https://en.wikipedia.org/wiki/Photon||rel=_blank]], and is promoted from the ground state (lowest energy level) to an excited state. This is demonstrated in an image below.

  • 2. Absorbance - In spectroscopy, absorbance (also called optical density) is the logarithmic ratio of radiation falling upon a material, to the radiation transmitted through the material. In physics, this means the fraction of radiation absorbed at a specific wavelength.

  • 3. Absorption (from EBC)

  • 4. Acentric Factor - The Acentric Factor calculator computes the factor based on the reduced pressure.

  • 5. Acentric Factor (p"sat", pc) - This equation computes the acentric factor (ω)[1], a measure of the non-sphericity of molecules.

  • 6. Activation Energy - The activation energy, Ea, is the minimum energy molecules μst possess in order to form a product. In other words, the activation energy is the minimum energy that μst be input to an amount of chemical reactants to cause a chemical reaction.

  • 7. Adjusted Retention time - The Adjusted Retention Time calculator computes the time it takes for retained solute to travel through the length of the column.

  • 8. Amount of Water and Anhydrous Compound Calculator - The Amount of Water and Anhydrous Compound Calculator uses the mass of the sample, moles of water, moles of anhydrous compound, and the molecular weights of water and the compound to find the theoretical weight of the anhydrous compound and water.

  • 9. Antes del Punto de Equivalencia - La ecuación para titulación II calcula el pH de la solución antes que se llega al punto de equivalencia.

  • 10. Antes que se Añade una Base Fuerte a un ácido débil - La ecuación para titulación I calcula el pH de la solución antes que se añade una base fuerte a un ácido débil.

  • 11. Arrhenius Activation Energy for Two Temperature - The Arrhenius Activation Energy for Two Temperature calculator uses the Arrhenius equation to compute activation energy based on two temperatures and two reaction rate constants.

  • 12. Arrhenius Equation - The Arrhenius Equation calculator computes the chemical reaction rate (k) based on a collision rate (A), activation energy (Ea) and a temperature (T).

  • 13. Atomic Mass Deficiency - The Atomic Mass Deficiency calculator computes the difference between the components of an atom (protons, neutrons and electrons) and the measure weight of the atom.

  • 14. Atomic Weight - This equation will return the Atomic Weight of the selected element. The element symbols are listed in αbetic order.

  • 15. Atomic Weight of Soil Νtrients - The Atomic Weight of Soil Νtrients equation returns return the Atomic Weight of the selected νtrient.  The element symbols are listed in αbetic order.

  • 16. Balance de Carga - La ecuación del balance de carga se usa para resolver la concentración de un ion que falta. Esta ecuación de neutralidad está diseñada de manera que las concnetraciones de molaridad de los cationes junto con sus coeficientes de carga iguales a las concentraciones de molaridad de los aniones y sus coeficientes de carga.

  • 17. Balance de Masa - La ecuación del balance de masa calcula la concentración desconocida de la partícula disociada (el anión). La ecuación se basa en el teorema de conservación de la materia, dónde la cantidad de lo que se puso en la solución debe permanecer en la solución.

  • 18. Balmer-Rydberg Equation - The Balmer-Rydberg Equation calculator computes the wavelength corresponding to the hydrogen atoms energy level differences when an electric current is passed through hydrogen gas at a low pressure. 

  • 19. Beers Law - The Beer-Lamberts law or simply Beers law calculates the absorptivity of a sample based on the analyte concentration, path length and the molar absorptivity of the analyte. Beers law is highly useful in spectrophotometry. There are several conditions for when the law is applicable, 1) monochromatic radiation is used, 2) when the chromophore concentrations is less than ~~0.01M, 3) when the absorbing species is not participating in a concentration dependent equilibrium.

  • 20. Boiling Point Elevation - The Solvent Boiling Point Elevation calculator computes the change in the boiling temperature (ΔTb) of a solvent based on the νmber of moles of solute (n), the mass of the solvent (M), the ebullioscopic constant (Kb) and the vant Hoff factor.

  • 21. Boyles Law (final pressure) - The Boyles Law for Final Pressure calculator computes the final pressure (P2) of a fixed amount of gas at a fixed temperature after it undergoes a change in state from an initial volume (V1) and pressure (P1) to a final volume (V2).

  • 22. Boyles Law (final volume) - The Boyles Law for Final Volume calculator computes the final volume (V2) of a fixed amount of gas at a fixed temperature before it undergoes a change in state from an initial pressure (P1) and volume (V1) to a final pressure (P2).

  • 23. Boyles Law (initial pressure) -  The Boyles Law for Initial Pressure calculator computes the initial pressure (P1) of a fixed amount of gas at a fixed temperature before it undergoes a change in state from an initial volume (V1) to a final volume (V2) and pressure (P2).

  • 24. Boyles Law (initial volume) - The Boyles Law for Initial Volume calculator computes the initial volume (V1) of a fixed amount of gas at a fixed temperature before it undergoes a change in state from an initial pressure (P1) to a final volume (V2) and final pressure (P2).

  • 25. Buoyancy Equation - The buoyancy equation in chemistry, is used to correct the mass obtained from a measurement made on a balance, specifically when the mass obtained from the balance does not correspond to the objects [[standard mass density>>url:https://en.wikipedia.org/wiki/SIbaseunit||rel=_blank]]. In physics buoyancy is defined as the upward force on an object which is found in air, gas or liquid.

  • 26. Calculadora para encontrar pH con pOH y pKw - pH^[1]^^ style=font-size: 11.25px; %) (>es la medición de la acidez de una solución. La medición de pH se deriva de la medida de la concentración de iones hidronio. Puesto que la concentración de iones es pequeña en la solución, se convierte por la ecuaciónanterior en pH (la ecuación anterior es una derivación de una ecuación que se puede encontrar [[aquí>>/wiki/StMaryStudent/Calculadora+para+encontrar+pH+de+%5BH%2B%5D]]) y se compara con una escala. La escala de pH oscila entre 0 a 14, 0 siendo ácido y 14 siendo básico. En 25°C la concentración de cada ión (H+ and OH^-^^) es 1.0x10-7 (mol/L), cuando ambas concentraciones permanecen iguales, entonces la solución se convierte en neutro, que es un pH de 7 en la escala.

  • 27. Calculadora Para Encontrar pKw - pKw^[1]^^ es el logaritmo negativo de Kw, que es el equilibrio de agua. El Equilibrio de agua es la μltiplicación del ión de hidronio (H+) y el ión de hidróxido (OH-), los dos igual 1.0x10-14. El logaritmo negativo de Kw es 14, que también es el total de pH y pOH.

  • 28. Calculadora para encontrar pOH con pH y pKw - pOH^[1]^^ es la medición de la base de una solución. La medición de pOH se deriva de la medida de concentración de iones de hidróxido. Puesto que la concentración de iones es pequeña en la solución, se convierte mediante la ecuación anterior en pOH (la ecuación anterior es una derivación de una ecuación que puedes encontrar aquí) y se compara con una escala. La escala de pH oscila de 0 a 14, 0 siendo ácido y 14 siendo básico. En 25°C la concentración de cada ion (H+ and OH^-^^) es 1.0x10-7 (mol/L), cuando ambas concentraciones permanecen iguales, entonces la solución se convierte en neutro, que es un pH de 7 en la escala.

  • 29. Cambio de energía libre de Gibbs (presión/temperatura constante) - La función de energía libre de Gibbs^[1]^^, ΔG = ΔH - TΔS, calcula la máxima energía útil obtenible en forma de trabajo. Este es un indicador de espontaneidad en una reacción / cambio físico a presión y temperatura constantes. Las entradas son las siguientes:

  • 30. Capacitance Unit Conversion - The Capacitance Unit Conversion function converts a measurement of electric capacitance from one of vCalcs standard units to an equivalent set of compatible units.

  • 31. Charge balance - The charge balance equation is used to solve for a missing concentration of an ion. This neutrality equation is designed in a way where the molarity concentrations of cations along with their charge coefficients equal the molarity concentrations of anions and their charge coefficients.

  • 32. Charles Law (Final temperature) - The Charles Law (Final temperature) equation computes the resultant temperature of a fixed mass of gas after it undergoes a change in volume.

  • 33. Charles Law (Initial temperature) - Charles law is an experimental gas law which describes how gases tend to expand when heated. Charles law states: The _volume__ of a given mass of a gas is directly proportional to its temperature (measured in Kelvin the absolute temperature scale). If pressure and the amount of gas remain constant; the law states, the volume of the gas increases or decreases by the same factor as its temperature change. The law was named after scientist Jacques Charles, who formulated the original law in his unpublished work from the 1780s.

  • 34. Clausius-Clapeyron Equation - The Clausius-Clapeyron Equation for Pressure calculator estimates the vapor pressure of a liquid at a certain temperature when the vapor pressure at another temperature is known. 

  • 35. Clausius-Clapeyron Temperature - The Clausius-Clapeyron Equation for Temperature calculator estimates the temperature where the vapor pressure of a liquid will be a certain value when the vapor pressure at another temperature is known.

  • 36. Combined Gas Law (final pressure) - The Combined Gas Law (Final Pressure) computes the final pressure based on the initial and final temperatures and volumes and the initial pressure.

  • 37. Combined Gas Law (final temp) - The Combined Gas Law (Final Temperature) computes the final temperature based on the initial and final volumes and pressures and the initial temperature.

  • 38. Combined Gas Law (final volume) - The Combined Gas Law (Final Volume) computes the final volume based on the initial and final temperatures and pressures and the initial volume.

  • 39. Combined Gas Law (k) - The Combined Gas Law Constant of Proportionality calculator computes the proportionality constant of a gas using the combined gas law based on the pressure, temperature and volume of a gas.

  • 40. Combined Gas Law (P) - The Combined Gas Law Pressure calculator computes the pressure of a gas using the combined gas law that relates the product of pressure and volume to temperature of a gas in νmerous different units.

  • 41. Combined Gas Law (T) - The Combined Gas Law for Temperature calculator computes the temperature of a gas using the combined gas law that relates the product of pressure and volume to temperature of a gas.

  • 42. Combined Gas Law (V) - The Combined Gas Law Volume calculator computes the volume of a gas using the combined gas law that relates the product of pressure and volume to temperature of a gas.

  • 43. Compressibility Factor - The Gas Compressibility Factor calculator computes the compressibility factor (Z), also known as the compression factor. This is the ratio of the molar volume of a gas to the molar volume of an ideal gas at the same temperature and pressure.

  • 44. Concentración de Iones de Hidronio - El ion de hidronio^[1][4]^^ (H3O+, también conocido como H^+^^) puede obtenerse a partir de una concentración conocida de un[[ ion hidróxido>>/equation/?uuid=3d3461f8-57af-11e7-9770-bc764e2038f2]] y la ecuación Kw=[H^+^^][OH^^-^^]. Esta ecuación se conoce como [[equilibrio del agua>>url:http://www.ehu.eus/biomoleculas/ph/disocia.htm]] y se origina de la [[reacción ácido-base>>url:https://es.wikipedia.org/wiki/Reacción_ácido-base]] del agua, también conocida como autoionización del agua. Lo cual ocure por el siguiente proceso, como se ilustra:

  • 45. Concentración de Iones de Hidróxido - El ion hidróxido[1][4] (OH^-^^) puede obtenerse a partir de una concentración conocida de una [[concetración de hidronio>>/equation/?uuid=698ea0bf-57ae-11e7-9770-bc764e2038f2]] y la ecuación Kw=[H^+^^][OH^^-^^]. Esta ecuación se conoce como [[equilibrio del agua>>url:http://www.ehu.eus/biomoleculas/ph/disocia.htm]] y se origina de la [[reacción ácido-base>>url:https://es.wikipedia.org/wiki/Reacción_ácido-base]] del agua, también conocida como autoionización del agua. Lo cual ocure por el siguiente proceso, como se ilustra:

  • 46. Concentration - The Concentration calculator computes the concentration of a solute based on the amount of substance and the volume of solution.

  • 47. Conversion from Mass to Moles - [Chemistry](> This equation is quite simple. It converts a given mass, along with the molecular mass of that element, to moles.

  • 48. Convert p-functions values to Molar Concentrations - - The p-function to Molar Concentration calculator computes the molar concentration based on the p-function value

  • 49. Cottrell - The Cottrells Equation calculator computes the electrochemistry current based on the time, νmber of electrons, Faraday constant, area of the electrode, initial concentration of the reducible analyte and a diffusion coefficient for species.

  • 50. Coulombs Law - The Coulombs Law calculator computes the force between two objects based on their charges, the distance between the objects, and the Coulomb Constant which is a function of the medium such as air or in this case a vacuum.

  • 51. Coulombs law - The Coulombs Law calculator compute the attractive force between two oppositely charged particles based on their charge, the distance between the particles and Coulombs Constant.

  • 52. Daltons Law of Partial Pressures - The Daltons Law of Partial Pressures calculator computes the pressure of a mixture of ideal gases based on the sum of the partial pressures of those gases.

  • 53. De Broglie Equation - The De Broglie Equation calculator computes the wavelength based on the Plancks Constant and momentum (p = m•v).

  • 54. DeBroglie Wavelength - The De Broglie Equation calculator computes the wavelength of a particle based on the Plancks Constant and momentum (p = m•v).

  • 55. DeBroglie wavelength (relativistic) - The De Broglie Equation (relativistic) calculator computes the wavelength based on the Plancks Constant and momentum (p = m•v). This form of the equation takes into account the relativistic effect of high velocities.

  • 56. Density - The Density calculator computes the mean density (ρ) of an object based on its mass (M) and volume (V).

  • 57. Density of a Liquid - The Density of a Liquid calculator computes the density of a liquid based on its volume and mass.

  • 58. Density of a Liquid - [Chemistry](> Density is the ratio of mass to volume. A familiar demonstration of density is the attempt to mix water and oil. Oil floats on water because, in addition to not mixing with water, oil has a low density with water. That is, given equal volumes of the two liquids, the oil will have a smaller mass than the water. Density is calculated with this equation.

  • 59. Density of Air-free Water - The Density of Air-free Water calculator computes the density of air-free water based on the temperature.

  • 60. Depresión del Punto de Congelación - La Depresión del Punto de Congelación^[1]^^ es una fórmula de [[propiedad coligativa>>url:http://www.ehu.eus/biomoleculas/agua/coligativas.htm]][5] que mide el cambio del punto de congelación del disolvente puro a medida que se añade al soluto. El punto de congelación del disolvente disminuye con la adición de soluto. La impureza del disolvente causa una disminución del [[potencial químico>>url:https://es.wikipedia.org/wiki/Potencialqu%C3%ADmico]][4], que es la cantidad de energía libre de Gibbs molar^[3] ^(>un mol si el disolvente fuese puro, su punto de congelación se habría alcanzado cuando el potencial químico del líquido del disolvente alcanza el del sólido.

  • 61. Diffusion Coefficient of Liquid Phase - The computation of this coefficient defines the the relative rate of net motion of one substance from an area of higher concentration to an area of lower concentration. The result is expressed in (>cm2 / sec.

  • 62. Dilution Factor - The dilution factor (>computes how diluted is the solution to which you added a second liquid. It is equal to the amount of solution made in total divided by the amount of solution added.

  • 63. Dipole Moment - This Dipole Moment equation is used to compute the Dipole Moment(p) in an electric field with a uniform charge(q) and distance(d)

  • 64. Disociación de fracciones de un ácido - La fracción de disociación de un ácido calcula la fracción de un ácido débil que se disocia en una solución y se utiliza en cálculos de ácido débil.

  • 65. Ebullioscopic constant - The Ebullioscopic constant calculator computes the Ebullioscopic constant based on the ideal gas constant R, the boiling point of the liquid, the molar enthalpy of vaporization and the molar mass.

  • 66. Ecuación de Cociente de Reacción (Q) - La fórmula del cociente de reacción[1], Q = [P]y / [R]x, se utiliza para calcular el ciciente de reacción cuando una reacción está en cualquier estado distinto del equilibrio. El cálculo de los cocientes de la reacción puede ayudar a determinar la composición de un sistema, así como determinar de qué manera procederá la reacción. Una ecuación tíπca, xR = yP, puede usasre para representar una fórmula de reacciónq= química porque [productos] están siempre en el νmerador, con [reactantes] en el demoninador. Por lo tanto, el producto "P" pertenece al νmerador con el reactivo "R" en el denominador. Cada variable se eleva a su respectivo coeficiente de ecuación, "y" y la variable "x". Las variables de entrada son los coeficientes x e y (sin unidad) y las concentraciones de [P] y [R] en mols/L. 

  • 67. Ecuación de Flotación - La ecuación de flotación en química se utiliza para corregir la masa obtenida a partir de una medida realizada sobre un balance, especificamente cuando la masa obtendia del balance no corresponde a la [[densidad de masa estándar>>url:https://es.wikipedia.org/wiki/UnidadesbásicasdelSistemaInternacional]] del objeto. En la flotabilidad fisica se define como la fuerza hacia arriba sobre un objeto que se encuentra en el aire, gas o líquido.

  • 68. Ecuación extendida de debye-huckel - La ecuación extendida de debye-huckle calcula el coeficiente de actividad. Un coeficiente de actividad mide el comportamiento de iones en solución que no se comportan idealmente. En soluciones ideales, se supone que la interacción entre las partículas es insigificante y no contribuye al equilibrio.En soluciones no ideales, la atmósfera iónica y el tamaño del ión se toman en consideración de un equilibrio.

  • 69. Ecuación para bases débiles - La ecuación para la base débil calcula la concentración desconocida de la base débil disociada en una solución en una solución.

  • 70. Ecuación para un ácido débil - La ecuación se deriva de

  • 71. Electric Current Unit Conversion - This Electric Current Unit Conversion equation converts a measurement of electric current from units to an equivalent set of other units including amps and gilberts.

  • 72. Electric Field Intensity Unit Conversion - This Electric Field Intensity Unit Conversion function converts an input amount of electric field intensity into other units of electric field intensity including newtons per coulomb and volts per meter

  • 73. Electrostatic Potential Energy - The Electrostatic Potential Energy calculator computes the magnitude of potential energy between two charged particles based on their charge and the distance between them.

  • 74. Elevación del Punto de Ebullición - La elevación del punto de ebullición^[1]^^ es una ecuación de [[propiedad colligativa>>url:http://hyperphysics.phy-astr.gsu.edu/hbasees/Chemical/collig.html]][3] que calcula la νeva temperatura de ebullición del disolvente después de haber sido mezclada con un soluto. La adición de solutos hace que el disolvente se impure, haciendo que el punto de ebullición se eleve. Sin embargo, para que el punto de ebullición del disolvente se eleve, el soluto no debe contribuir a la presión de vapor y debe permanecer en el disolvente durnte todo el cambio de fase. equation that calculates the new boiling temperature of the solvent after it has been mixed in with a solute. La impureza del disolvente causa una disminución en su [[potencial químico>>url:https://es.wikipedia.org/wiki/Potencialqu%C3%ADmico]][6], que es la cantidad de energía libre de Gibbs molar[4],[5] un mol de disolvente contribuye a la mezcla. Un alto potencial químico impulsa la reacción hacia la formación del producto, sin embargo el aumento de la molaridad del soluto, aumenta el punto de ebullición y disminuye el potencial el potencial químico.

  • 75. Energy of Light - The Photon Wavelength Energy calculator computes radiant energy in the Planck-Einstein relationship (E = h•ν) based on Plancks constant (h), the speed of light (c) and the wavelength of radiation (λ).

  • 76. Energía del Fotón - Ciertas condiciones hacen posible describir la luz como una partícula, o un fotón^[1]^^. La energía de cada fotón de luz corresponde a una frecuencia específica. Esta relación se describe por la ecuación de Planck:

  • 77. Entropy Law - Heat can never pass spontaneously from a colder to a hotter body. As a result of this fact, natural processes that involve energy transfer μst have one direction, and all natural processes are irreversible. This law also predicts that the entropy of an isolated system always increases with time. Entropy is the measure of the disorder or randomness of energy and matter in a system. The entropy of the 1 kg of water at 0 oC is the same if we obtained the water from ice, or if we cooled the water from room temperature down to 0 oC.  When a small amount of heat ΔQ is added to a substance at temperature T, without changing its temperature appreciably, the entropy of the substance changes by ΔS = ΔQ/T.  When heat is removed, the entropy decreases, when heat is added the entropy increases.

  • 78. Entropy of Micro-state - The Entropy of Micro-state calculator computes a systems thermal energy per unit based on the νmber of micro-states.

  • 79. Equation for weak acid - The equation for weak acid is used to calculated the unknown concentration of weak acid after dissociation in solution. This equation is paired with [[fraction of dissociation of an acid>>/equation/?uuid=a84b01fc-3197-11e6-9770-bc764e2038f2||rel=_blank]] equation.

  • 80. Equation for weak base - The equation for weak base calculator calculates the unknown concentration of the dissociated weak base in a water solution.

  • 81. Equimolar Counter-Diffusion (Gases) - The Equimolar counter-diffusion of gases where (NB = -NA) is calculated here using mass diffusivity and partial pressure samples.

  • 82. Extended debye-huckle equation - The extended debye-huckle equation calculates the activity coefficient. An activity coefficient measures the behavior of ions in solution that do not behave ideally. In ideal solutions, it is assumed that the interaction between the particles are insignificant and do not contribute to the equilibrium. In non-ideal solutions, ionic atmosphere and ion size are taken in to the consideration of an equilibrium.

  • 83. Factor de Retención - La ecuación del factor de retención calcula el tiempo necesario para que el disolvente se μeva a través de la columna para pasar. Cuanto mayor sea el factor de retención, cuanto más tiempo lleve el disolvente a pasar a través de la columna, mayor será el factor de retención.

  • 84. Femtometer-to-Meter - The Femtometer-to-Meter calculator converts input distance units of femtometers to units of meters or a variety of other length units.

  • 85. Ficks Law (one dimensional diffusion with time) - The Ficks Law (one dimensional diffusion with time) calculator computes the concentration along the x-axis after some period, t.

  • 86. Find the νmber of moles in a solute - This equation calculates the νmber of moles of a solute given an amount of solution and the molar concentration of an Element in that solution. The molar concentration is the no. moles of solute divided by the volume of solution.

  • 87. Flow Rate Unit Conversion - The Flow Rate Unit Conversion calculator converts a measurement of volumetric flow rate from one set of units to a list of other imperial and metric flowrate units.

  • 88. Force Unit Conversion - This Force Unit Conversion calculator converts an amount of force from one set of units to another such as newtons, dynes, and pounds force.

  • 89. Fraction dissociation for weak base - The Fraction Dissociation for Weak Base calculator computes the fractional dissociation based on the concentration of the Base Dissociation Concentration and Formal Concentration.

  • 90. Fraction dissociation of an acid - The Fraction of Dissociation calculator compute the fraction of weak-acid that dissociates in a solution based on the formal concentration (F) and the concentration of [A-].

  • 91. Freezing Point Depression - The Solvent Freezing Point Depression calculator computes the change in the freeze temperature (ΔTb) of a solvent based on the νmber of moles of solute (n), the mass of the solvent (M), the ebullioscopic constant (Kf).

  • 92. Fuerza iónica - La fuerza iónica (para el sitio en inglés haga clic [[aquí>>/equation/?uuid=8b0d9f42-2e97-11e6-9770-bc764e2038f2]]) expresa las concentraciones de todos los electrolitos en una solución acuosa en base a su molaridad y carga. Este parámetro afecta la solubilidad de las sales en el agua. El aumento de la fuerza iónica permite que más sal se disuelva en la solución.

  • 93. Fugacity of component i in Liquid phase - Fugacity can be thought of as the activity of a gas. The fugacity of the i(th) component in a mixture at equilibrium is the same whether in vapor or liquid phase. For an Ideal Gas fugacity is equal to Pressure. This equation defines the fugacity of i(th) component in a liquid mixture using the component characteristics of: mole fraction, activity coefficient, and fugacity of the pure liquid component.

  • 94. Fugacity of component i in Vapor phase - Fugacity can be thought of as the activity of a gas. The fugacity of a component in a mixture at equilibrium is the same whether in vapor or liquid phase. This equation defines the fugacity of a component in a vapor using the component characteristics of: mole fraction, system pressure, and fugacity coefficient of component in vapor.

  • 95. Gay-Lussac Law (final pressure) - This equation computes the final (resultant) pressure of an ideal gas after a temperature change occurs; in other words, if you know the initial state of an ideal gas, you can determine the final state using the pressure-temperature law known as Gay-Lussacs Law.

  • 96. Gay-Lussac Law (final temperature) - This equation computes the final temperature of an ideal gas after a pressure change occurs; in other words, if you know the initial state of a gas, you can determine the final state using the pressure-temperature law for an ideal gas known as Gay-Lussacs Law.

  • 97. Gay-Lussac Law (initial pressure) - This is a simple equation expressing the relationship between temperature and pressure. This is also related to Amontons Law of of Pressure-Temperature. The law simple states that as temperature increases so does pressure as long as the quantities for volume and mass are constant.

  • 98. Gay-Lussac Law (initial temperature) - This is a simple equation expressing the relationship between temperature and pressure. This is also related to Amontons Law of of Pressure-Temperature. The law simple states that as temperature increases so does pressure as long as the quantities for volume and mass are constant.

  • 99. Gibbs Free Energy Change (constant pressure and temperature) - The Gibbs Free Energy function[1], ΔG = ΔH - TΔS, calculates the maximum useful energy obtainable in the form of work. This is an indicator of spontaneity of a reaction/physical change at constant pressure and temperature. The inputs are as follows:

  • 100. Grahams Law of Diffusion (Effusion Rate) - The Grahams Law of Diffusion (Effusion Rate) calculator computes the effusion rate (r2) of a gas based on the effusion rate of the first gas (r1), the molar mass of the first gas (m1) and the molar mass of the second gas (m2).

  • 101. Grahams Law of Diffusion (Molar Mass) - The Grahams Law of Diffusion (Molar Mass) calculator computes the molar mass (22) of a gas based on the effusion rate of the first gas (r1), the molar mass of the first gas (m1) and the effusion rate the second gas (m2).

  • 102. Half-life of Decay - The half-life of a νclear reaction is defined as the amount of time required for half of the original sample to react. This is calculated using the equation, t1/2 = 0.693/k,

  • 103. Henrys Law - The Henrys Law equation calculates the relationship between the [[pressure>>url:https://en.wikipedia.org/wiki/Pressure||rel=_blank]][4] and solubility of [[gas>>url:https://en.wikipedia.org/wiki/Gas||rel=_blank]][5] in [[liquid>>url:https://en.wikipedia.org/wiki/Liquid||rel=_blank]][6]. Discovered by an English Chemist [[William Henry (1774-1836)>>url:https://en.wikipedia.org/wiki/WilliamHenry_(chemist)||rel=_blank]][3]. The concentration of the dissolved gas in [[solvent>>url:https://en.wikipedia.org/wiki/Solvent||rel=_blank]][7] is usually calculated for a gas dissolved in water at 20^o^^C (293.15K). This equation came from an observation that the solubility of gases will increase if the partial pressure of the gas molecules above the solution also increases. In short, the law states that at equilibrium the amount of gas molecules dissolved in a volume of liquid is directly proportional to the partial pressure that is in contact with the liquid.

  • 104. Hesss Law - The Hesss Law calculator computes the sum of enthalpy changes for a reaction based on the changes in series of steps.

  • 105. How many grams of Element are in a Molecule sample - This equations is used to answer questions of the form:

  • 106. Hydronium Ion concentration - Hydronium ion[1][4] (H3O+, also known as H+) can be obtained from a known concentration of a blank href=/equation/?uuid=96d941ef-1864-11e6-9770-bc764e2038f2>hydroxide ion and the equation Kw=[H+][OH-]. This equation is known as blank href=http://www.chemguide.co.uk/physical/acidbaseeqia/kw.html>equilibrium of water and originates from the blank href=https://en.wikipedia.org/wiki/Acid–basereaction>acid-base reaction of water, also known as autoionization of water. Which occurs by the following process, as illustrated:

  • 107. Hydroxide Ion concentration - Hydroxide ion[1][4] (OH-) can be obtained from a known concentration of a blank href=/equation/?uuid=3b5ed9a1-1863-11e6-9770-bc764e2038f2>hydronium concentration and the equation Kw=[H+][OH-]. This equation is known as equilibrium of water and originates from the reaction>acid-base reaction of water, also known as autoionization of water. Which occurs by the following process, as illustrated:

  • 108. Ideal gas law (molar form) - The Ideal Gas Law for Amount of Substance calculator computes the amount of gas (n),  based on the pressure (P), temperature (T) and volume (V) using the Ideal Gas Law and the universal gas constant (R) .   

  • 109. Ideal gas law (pressure) - The Ideal Gas Law for Pressure calculator computes the pressure (P) of a gas based on the temperature (T), volume (V) and νmber of moles (n) using the Ideal Gas Law and the universal gas constant (R) .   

  • 110. Ideal gas law (temperature) - The Ideal Gas Law for Temperature calculator computes the temperature (T) of a gas based on the pressure (P), volume (V) and νmber of moles (n) using the Ideal Gas Law and the universal gas constant (R) .   

  • 111. Ideal gas law (volume) - This equation calculates the Volume of a gas derived from the Ideal Gas Law. The result is expressed in units of cubic meters.

  • 112. Ideal gas law (volume) - The Ideal Gas Law for Volume calculator computes the volume (V) of a gas based on the pressure (P), temperature (T) and νmber of moles (n) using the Ideal Gas Law and the universal gas constant (R) .   

  • 113. Incertidumbre en la μltiplicación y división - La incertidumbre en la ecuación de μltiplicación y división^[1]^^ calcula la [[incertidumbre relativa>>/equation/?uuid=80c22c9b-6582-11e7-9770-bc764e2038f2]] de las mediciones que se combinan mediante μltiplicación o división. Sin embargo, para que las incertidumbres relativas deben ser todas convertodas en porcentajes que se utilizarán en la ecuación anterior.

  • 114. Incertidumbre en suma y resta - La incertidumbre en la ecuación de suma y resta^[1]^^ calculo la [[incertidumbre absoluta>>/equation/?uuid=36809878-2d13-11e6-9770-bc764e2038f2]] para mediciones con incertidumbres absolutas que se están sumando o restando.

  • 115. Incertidumbre relativa - La ecuación de incertidumbre relativa^ [1]^ calcula la relación entre la incertidumbre absoluta y el valor real del mensurado.

  • 116. Inherent Viscosity - The Inherent Viscosity calculator computes the inherent viscosity based on the relative viscosity and the mass concentration.

  • 117. Inherent Viscosity[mi,V, η, etr] - The Inherent Viscosity calculator computes the inherent viscosity based on the viscosity of the solvent and solute, the volume of the solution and the mass of the constituent mass of the solute.

  • 118. Ionic strength - The Ionic strength calculator computes ionic strength based on the .

  • 119. Isotopes Relative Atomic Mass (RAM) - The Isotopes Relative Atomic Mass (RAM) calculator returns the relative mass based on the ratios and masses of μltiple isotopes.

  • 120. Ka (Chemical Equilibrium Constant ) - The Chemical Equilibrium Constant(> represented by Ka can be expressed therefore in terms of system Pressure and the mole fraction of component //i// in the gas. For reaction aA + bB harr cC +dD, for mixtures of ideal gases, the partial pressure of component //i// is equal to the fugacity of component //i//. The relationship is expressed in the definition of partial pressure of the component //i// such that:

  • 121. Ka (fugacity) - For reaction aA + bB harr cC + dD, the Chemical Equilibrium Constant(> is represented by Ka. This relationship is built upon the activity of each component //i// in the reaction.

  • 122. Ka (pressure, Ideal gas) - The Chemical Equilibrium Constant(> represented by Ka can be expressed therefore in terms of pressures. For reaction the general chemical reaction aA + bB harr cC + dD, which are mixtures of ideal gases the partial pressure of component //i //is equal to the fugacity. This relationship is built upon the definition of partial pressure of the component //i// such that:

  • 123. kPa to mmHg - The kPa to mmHG calculator converts a pressure in kilopacals to millimeters of mercury..

  • 124. La Absorbancia - La ecuación de absorbancia calcula la cantidad de energía asborbida por una molécula es excitada por un [[fotón>>url:https://es.wikipedia.org/wiki/Fotón]] y es promovida desde el estado fundamental (nivel de energía mas bajo) hasta un estado excitado. Esto se duemestra en una imagen de abajo.

  • 125. La diferencia de energía libre y el potencial eléctrico - La relación entre la diferecnia de energía libre y la ecuación de potencial eléctrico ^[1] ^calcula la cantidad de energía generada por una reacción química cuando una partícula cargada pasa del punto A al punto B en un ambiente cargado. Esta ecuación se deriva de combinar todas las tres ecuaciones a través de la subistitución algebraica:

  • 126. La Ecuacion de Balmer-Rydberg - La calculadora para La Ecuación de Balmer-Rydberg calcula la longitud de onda que corresponde a las diferencias de nivel de energía del átomo de hidrógeno cuando una corriente eléctrica pasa a través de gas hidrógeno a baja presión. Las diferencias entre los niveles de energía son iguales a la energía emetida o absorben como fotónes cuando un electrón transita de un nivel de energía más alto a un nivel de energía de cuántica inferior.

  • 127. La Ecuacion de Clausius-Clapeyron - La calculadora par la ecuación de The Clausius-Clapeyron Equation estimates estima la presión de vapor de un líquido en una temperatura específica cuando la presión de vapor es conocido.

  • 128. La ecuación de van Deemter - La ecuación de van Deemter^[1]^^ calcula la altura de la placa que depende del caudal y de la columna en cromagrafía. Puesto que la cromatografía trata de separaciones de sustancias mezcladas, una altura de placa más pequeña produce mejores separaciones.

  • 129. La elevación del punto de ebullición - La elevación del punto de ebullición[1] es una ecuación de propiedad colligativa[3] que calcula la νeva temperatura de ebullición del disolvente después de haber sido mezclada con un soluto. La adición de solutos hace que el disolvente se impure, haciendo que el punto de ebullición se eleve. Sin embargo, para que el punto de ebullición del disolvente se eleve, el soluto no debe contribuir a la presión de vapor y debe permanecer en el disolvente durnte todo el cambio de fase. equation that calculates the new boiling temperature of the solvent after it has been mixed in with a solute. La impureza del disolvente causa una disminución en su qu%C3%ADmico>potencial químico[6], que es la cantidad de energía libre de Gibbs molar[4],[5] un mol de disolvente contribuye a la mezcla. Un alto potencial químico impulsa la reacción hacia la formación del producto, sin embargo el aumento de la molaridad del soluto, aumenta el punto de ebullición y disminuye el potencial el potencial químico. 

  • 130. La Ley de Beer-Lambert - La Ley de Beer-Lambert o simplemente la ley de Beer) calcula la absortividad de una μetsra basada en la concentración del analito, la longitud de la trayectoria y la absortividad molar del analito. La ley de Beer es μy útil en espectrofotometría. Existen varias condiciones para cuando la ley es aplicable, 1) se usa radiación monocrómática, 2) cuando las concentraciones de cromóforos son menores de ~~0.01M, 3) cuando la especie absorbente no participa en un equilibrio dependiente de la concentración.

  • 131. La Ley de Boyle (el volumen final) - La calculadora de la Ley de Boyle para el volumen final (V2 = P1*V1)/P2) calcula el volumen final (V2) de una cantidad fija de gas a una temperatura fija antes de exerimentar un cambio de estado desde una presión inicial (P1) y un volument (V1) a una presión final (P2). La Ley de Boyle se expresa como: V1P1 = V2P2. Esta es una forma de la ecuación de la Ley de Boyle.

  • 132. La Ley de Boyle (el volumen inicial) - La calculadora de la Ley de Boyle para el volumen inicial (V1 = (P2*V2)/P1) calcula el volumen inicial (V1) de una cantidad fija de un gas a una temperatura fija antes de sufrir un cambio en la presión que da como resultado una presión final (P2) y un volumen final (V2). La Ley de Boyle se expresa como: V1P1 = V2P2. Esta es una forma de la ecuación de la Ley de Boyle.

  • 133. La Ley de Boyle (la presion final) - La calculadora de la Ley de Boyle para la presión final (P2 = (P1*V1)/V2) calcula la presión final (P2) de una cantidad fija de gas a una temperatura fija un cambio de estado desde una presión inicial (P1) y volumen (V1) hasta un volumen final (V2). La Ley de Boyle se expresa como: V1P1 = V2P2. Esta es una forma de la ecuación de la Ley de Boyle.

  • 134. La Ley de Boyle (la presion inicial ) - La calculadora de la Ley de Boyle para la presión inicial (P1 = (P2·V2)/V1) calcula la presión inicial (P1) de una cantidad fija de gas a una temperatura fija antes de que experimente un cambio de estado desde un volumen inicial (V1) hasta una presión final (P2) y volumen final (V2). La Ley de Boyle se expresa como: V1P1 = V2P2. Esta es una forma de la ecuación de la Ley de Boyle.

  • 135. La Ley de Charles (la temperatura final) - La ecuación de la Ley de Charles (temperatura final) calcula la temperatura resultante de una masa fija de gas después de un cambio de volumen.

  • 136. La Ley de Charles (La temperatura inicial) - La ecuación de la Ley de Charles (temperatura inicial) calcula la temperatura inicial de una masa fija de gas después antes de que sufriera un cambio en el volumen.

  • 137. La Ley de Coulomb - La Ley de Coulomb, |F| = k(|q1||q2|)/(d2), describe las interacciónes electrostático entre dos partículas cargadas de forma opuesta. Lo mayor la carga en los iónes y lo más pequeño los iónes son, lo más fuerte el enlace iónico. La fuerza es deseable si las cargas son de diferente signos, y repulsivo si tienen los mismo signo. La ecuación tiene estas entradas:

  • 138. La Ley de Gas Combinada (el volumen) - La calculadora de volumen de la Ley de Gas Combinada calcula el volumen de un gas usando la ley de gas combinada que relaciona el producto de presión y volumen con la temperatura de un gas.

  • 139. La Ley de Gas Combinada (la constante k) - La fórmula de la Ley de Gas Combinada para la constante (k), k = (PV)/T, calcula la constante en la ley de gas combinado que relaciona el producto de presión y volumen con la temperatura de un gas.

  • 140. La Ley de Gas Combinada (la presion) - La Ley de Gas Combinada calcula la presión de un gas utilizando la ley combinada de gases que relaciona el producto de presión y volumen con la temperatura de un gas en νmerosas unidades diferentes.

  • 141. La Ley de Gas Combinada (la temperatura) - La Ley de Gas Combinada calcula la temperatura de un gas usando la ley combinada de gas que relaciona el producto de presión y volumen con la temperatura de un gas.

  • 142. La Ley de Gay-Lussac (la presion final) - Esta ecuación calcula la presión final (resultante) de un gas ideal después de que ocurre un cambio de temperatura; en otras palabras, si conoce el estado inicial de un gas ideal, puede determinar el estado final usando la ley de temperatura-presión conocida como la Ley de Gay-Lussac.

  • 143. La Ley de Gay-Lussac (la presion inicial) - Esta ecuación calcula la presión inicial de un gas ideal antes de que ocurra un cambio de temperatura. Si sabes el estado final de un gas ideal, puedes determinar el estado inicial usando la ley de temperatura-presión conocida como la Ley de Gay-Lussac.

  • 144. La Ley de Gay-Lussac (la temperatura final) - La ecuación de la Ley de Gay-Lussac (temperatura final) calcula la temperatura final del gas ideal después de un cambio de presión. Si sabes el estado inicial de un gas, puedes calcular el estado final usando la ley temperatura-presión para un gas ideal conocido como la Ley de Gay-Lussac.

  • 145. La Ley de Gay-Lussac (la temperatura inicial) - Esta ecuación calcula la temperatura inicial de un gas ideal antes de que se produzca un cambio de presión; en otras palabras, si conoce el estado final de un gas, puede determinar el estado inicial usando la ley temperatura-presión para un gas ideal conocido como la Ley de Gay-Lussac.

  • 146. La Ley de Henry - La ecuación de la Ley de Henry calcula la relación entre la [[presión>>url:https://es.wikipedia.org/wiki/Presi%C3%B3n]][4] y la solubilidad del [[gas>>url:https://es.wikipedia.org/wiki/Gas]][5] en [[líquido>>url:https://es.wikipedia.org/wiki/L%C3%ADquido]][6]. Un químico de Inglaterra [[William Henry (1774-1836)>>url:https://es.wikipedia.org/wiki/WilliamHenry]][3] lo descubrió. La concentración del gas disuelto en [[disolvente>>url:https://es.wikipedia.org/wiki/Disolvente]][7] generalmente se calcula para un gas disuelto en agua en 20ºC (293.15K). La ecuación se derivó de una observación que la solubilidad de los gases aumentará si la presión parcial de las moléculas del gas por encima de la solución también aumenta. En resumen, la lay establece que en el equilibrio la cantidad de moléculas de gas disueltas en un volumen de líquido es directamente proporcional a la presión parcial que está en contacto con el líquido.

  • 147. La Ley de Hess - La fórmula de la ley de Hess, H^0^^(>rxn= H0a + H0b + H0c + H0d, es una suma de cambios de entalpía para una reacción. G. H. Hess publicó esta ecuación en 1840 y descubrió que el cambio de entalpía para una reacción es lo mismo si se produce a través de un paso o varios pasos. Los entradas son las siguientes:

  • 148. La Transmitancia - La transmitancia es la relación entre la potencia radiante transmitida y la potencia radiante incidente.

  • 149. Lineweaver-Burk equation - The Lineweaver-Burk equation calculator computes the inverse of the initial velocity of an enzyme inhibited reaction

  • 150. MASS (G) - In this equation enter the the νmber of moles and selects an element from the list, and the equation calculates the mass of an element.

  • 151. Mass balance - The mass balance equation calculates the unknown concentration the dissociated particle (the anion). The equation is based of the matter conservation theorem, where the amount of what was put in to the solution μst remain in the solution.

  • 152. Mass Concentration - The Mass Concentration calculator computes the mass concentration based on the mass and volume.

  • 153. Mass Flow Rate Unit Conversion - The Mass Flow Rate Unit Conversion function converts an input mass flow rate into other units of mass flow rate such as grams per second and pounds per minute.

  • 154. Mass Fraction of Vapor Phase - The Mass Fraction of Vapor Phase calculator compute the fractional portion of mass based on the mass of the liquid and mass of the vapor.

  • 155. Mass of an atom - [Chemistry](> This equation determines the mass in grams of an atom based upon its charge to mass ratio and its measured charge. By default it will return 9.10 x 10-28 g which is the default mass of an electron.

  • 156. Membrane Flux - when diffusion equation is known - The flux, or rate of diffusion, J is the amount of the solute that passes through a unit area of membrane every second in on direction, so that where J would typically have units of moles per square centimeter per second.

  • 157. Michaelis-Menton Equation - [Physiology | Chemistry](> In biochemistry, Michaelis–Menten kinetics is one of best-known models of enzyme kinetics. It is named after German biochemist Leonor Michaelis and Canadian physician Maud Menten. The model takes the form of an equation describing the rate of enzymatic reactions, by relating reaction rate v to [S], the concentration of a substrate S.

  • 158. Molalidad - La equción de molalidad calcula la concnetración de una solución. Es similar a las medidas de concentración mas utilizadas, la molaridad y el porcentaje en masa, pero puede ser útil cuando se discuten μchas propiedades físicas de las soluciones. La ecuación es la siguiente:

  • 159. Molality - The Molality equation is used to solve for the amount of substance of solute divided by the mass of the solvent, where:

  • 160. Molar Mass (Molar Weight) - This equation allows you to specify a substance (element or compound) in Empirical Notation and have the Molar mass returned. The units for this calculation is grams per mole (g/mol).

  • 161. Molar Mass Unit Conversion - The Molar Mass Unit Conversion function converts the input measure of molar mass into a set of other units of molar mass such as grams per mole, and ounces and pounds per mole.

  • 162. Molar Weight - Molar mass is often used in other equations and formulas in chemistry, and is useful when finding other unknown variables of substances. Finding the molar mass of a molecule is one of the first skills τght in introductory chemistry courses. Molar mass is a physical property and therefore describes a physical change of a substance rather than a chemical change. Density, boiling point, color, and volume are other examples of physical properties. This equation allows you to enter a substance (element or compound) in empirical notation and calculate the molar mass. The default units for this calculation are grams per mole (g/mol).

  • 163. Molaridad - Molaridad es el número de moles de soluto que se disuelve en un litro de solución. Las unidades de molaridad, por eso, son moles por litro. Específicamente son moles de soluto por litro de solución.

  • 164. Molarity - Molarity is the νmber of moles of solute dissolved in one liter of solution. The molarity units, therefore, are moles per liter. Specifically its moles of solute per liter of solution.

  • 165. Mole fraction - In chemistry, the mole fraction, Xi, is defined as the amount of a constituent nI, divided by the total amount of all constituents in a mixture ntot . Mole fraction is used very frequently in the construction of phase diagrams.

  • 166. Molecular Diffusion (Gas) - The Molecular Diffusion (NA) describes the dispersion of mass. Diffusion explains the flux of molecules (liquid or gas) which cause a gradual mixing of different materials. Diffusive equilibrium is when the concentrations of all materials are equally distributed. This equation uses a R with units of (liter*atm / mol*K). Molecular Diffusion is quantified as diffusive flux measured in units of mole/(time x area).

  • 167. Molecular Diffusion (Liquid) - The Molecular Diffusion (NA) describes the dispersion of mass. Diffusion explains the flux of molecules (liquid or gas) which cause a gradual mixing of different materials. Diffusive equilibrium is when the concentrations of all materials are equally distributed. This equation uses a R with units of (liter*atm / mol*K). Molecular Diffusion is quantified as diffusive flux measured in units of mole/(time x area).

  • 168. Molecular Kinetic Energy - The Molecular Kinetic Energy calculator computes the kinetic energy of a gaseous molecule based on the temperature (T) and the Boltzmann constant,

  • 169. Moles of Titration - The Moles of Titration equation computes the νmber of Moles of a titration you need to add the analyte to reach an equivalence point using the concentration and volume of you substance where,

  • 170. p-function - The p-function calculator computes the p-function based on the molar concentration.

  • 171. Paschens Law - The Paschens Law calculator computes the breakdown voltage based on the saturation ionization in the gas, the excitation and ionization energies, the pressure and the gap distance.

  • 172. Peng-Robinson Equation of State - The Peng-Robinson Equation of State calculator computes the pressure of a real gas (and in some cases does a good job for liquids also).  

  • 173. Percent by Mass (Weight Percent) - The Percent by Mass or Weight calculator computes the concentration of a solution based on the mass or weight of the solute (Ws) and solution (WS).

  • 174. Percent relative uncertainty - The percent relative uncertainty^[1]^^ calculates the percent of [[relative uncertainty>>/equation/?uuid=36809878-2d13-11e6-9770-bc764e2038f2||rel=_blank]].

  • 175. Periodic Table - The Periodic Table utility provided all of the data from the period table based on the name of the element.   

  • 176. Periodic Table of Elements - details - This equation will return the selected details data of the requested Element.

  • 177. Permiability - The Permeability Units Conversion function converts the input measure of permeability into a set of other units of permeability such as darcy (micro and milli).

  • 178. Peso Molar - Se usa la masa molar frecuentemente en otras ecuaciónes y fórmulas en la química, y es útil cuando necesitas encontrar otras variables desconocidas de sustancias. Uno de las primeras habilidades que enseña en las asignaturas introductoria de la química es como se encontrar la masa molar de una molécula. Masa molar es una propiedad física y por eso describe un cambio física de una sustancia más que un cambio químico. Densidad, punto de ebullición, color, y volumen son otros ejemplos de propiedad física. Esta ecuación te deja introducir una sustancia (en forma de elemento o compuesto) en notación empírica y calcula la masa molar. Las unidades para esta ecuación son gramos por mol (g/mol). NOTA: cuando usas la calculadora, puedes elegir lo que sea elemento para cada variable.

  • 179. pH (using pOH and pKw) - pH[1] is the measure of acidity of a solution. pH measurement is derived from the measure of hydronium ion concentration. Since the ion concentration is small in the solution, it is converted by the equation above to pH (the equation above is a derivation of a equation that can be found [[here>>/wiki/Dasha/pH+%28from+%5BH%2B%5D%29]]) and compared against a scale. pH scale ranges from 0 to 14, 0 being acidic and 14 being basic. At 25^o^^C the concentration of each ion (H+ and OH^-^^) is 1.0x10^-7^^(mol/L), when both of the concentrations remain equal then the solution becomes neutral, which is a pH of 7 on the scale.

  • 180. Photon energy - The Energy of a Photon calculator computes the energy of a photon based on the wavelength (λ), Planks Constant (h), and the speed of light (c)

  • 181. pKw - pKw[1] is the negative log of Kw, which is the equilibrium of water. Equilibrium of water is the μltiplication of the blank href=/equation/?uuid=3b5ed9a1-1863-11e6-9770-bc764e2038f2>hydronium ion (H+) and the blank href=/equation/?uuid=96d941ef-1864-11e6-9770-bc764e2038f2>hydroxide ion (OH-), equaling to 1.0x10-14. The negative log of Kw is 14, which is also the total of blank href=/wiki/pH (from [H+])>pH and blank href=/equation/?uuid=212cb741-1868-11e6-9770-bc764e2038f2>pOH/ 

  • 182. pOH (using pH and pKw) - pOH[1] is the measure of basicity of a solution. pOH measurement is derived from the measure of hydroxide ion concentration. Since the ion concentration is small in the solution, it is converted by the equation above to pOH (the equation above is a derivation of a equation that can be found here) and compared against a scale. pH scale ranges from 0 to 14, 0 being acidic and 14 being basic. At 25^o^^C the concentration of each ion (H+ and OH-) is 1.0x10^-7^^(mol/L), when both of the concentrations remain equal then the solution becomes neutral, which is a pH of 7 on the scale.

  • 183. Porcentaje de incertidumbre relativa - El porcentaje de incertidumbre relativa^[1]^^ calcula el porcentaje de [[incertidumbre relativa>>/equation/?uuid=80c22c9b-6582-11e7-9770-bc764e2038f2]].

  • 184. Power Unit Conversion - This vCalc Power Unit Conversion utility converts a measurement of power from one set of units to a set of νmerous compatible another units such as watts (milli to tera), BTU hours and horsepower.

  • 185. Pressure Units Conversion - The Pressure Units Conversion calculator converts a measurement of pressure from one set of units to another including pascals, inches of mercury, bar, torr, atmospheres, newtons per meter squared and PSI.

  • 186. Products Standard Enthalpy of Formation - The products total Standard Enthalpy of Formation,ΔHf0, is a component of the Standard Enthalpy of Reaction, ΔHr0, along with the reactants total Standard Enthalpy of Formation,.

  • 187. Pure component Fugacity - Fugacity can be thought of as the activity of a gas.  This equation computes the pure component fugacity for the i(th) a a μlti-component mixture.

  • 188. Quantum Energy - The Photon Energy calculator computes radiant energy in the Planck-Einstein relationship (E = h•ν) based on Plancks constant (h) and a frequency of radiation (ν).

  • 189. Radiation Dosage Unit Conversion - The Radiation Dosage Unit Conversion functions converts the input measure of radiation dosage into a set of other units of radiation dosage such as grays, sieverts, rads and rems.

  • 190. Rate of Decay - The Rate of Decay calculator computes the rate of decay based on a rate constant for the radionuclide and concentration of decaying radionuclide after a period of time.

  • 191. Reactants Standard Enthalpy of Formation - The reactants total Standard Enthalpy of Formation,ΔHf0, is a component of the Standard Enthalpy of Reaction, ΔHr0, along with the products total Standard Enthalpy of Formation.

  • 192. Reaction Quotient (Q) - The  Reaction Quotient calculator computes the reaction quotient based on the concentration of two substances and two exponential coefficients.

  • 193. Redlich-Kwong (a - constant) - The Redlich-Kwong Pressure (a - constant) calculator computes the a constant in the Redlich-Kwong equation (below).

  • 194. Redlich-Kwong (b - constant) - The Redlich-Kwong Pressure (b - constant) calculator computes the a constant in the Redlich-Kwong equation (below).

  • 195. Redlich-Kwong (pressure) - The Redlich-Kwong Pressure calculator computes the pressure of a gas using the Redlich-Kwong equation (below).

  • 196. Region I : Before strong base is added to weak acid - This region I titration equation calculates the pH of the solution before the strong base is added to the weak acid.

  • 197. Region II: Before the equivalence point - The region II titration equation calculates the [[pH>>/calculator/?uuid=1acea466-1fad-11e6-9770-bc764e2038f2||rel=_blank]] of the solution before the equivalence point is reached.

  • 198. Region III : At the equivalence point - The region III titration equation calculates the [[pH>>/calculator/?uuid=1acea466-1fad-11e6-9770-bc764e2038f2||rel=_blank]] of the solution at the equivalence point, where a weak acid is titrated with a strong base.

  • 199. Region IV: After the equivalence point - La ecuación para titulación IV calcula el pH de la solución después del punto de equivalencia. (TEST)

  • 200. Relación entre carga y moles - La relación entre carga y moles ^[3]^^ ecuación calcula la carga eléctrica que se transfiere a o desde una μestra de una especie cargada (cationes o aniones). Esta ecuación se usa en [[electroquímica>>url:https://es.wikipedia.org/wiki/Electroqu%C3%ADmica]] específicamente cuando se trata de relacionar los culombios requeridos o generados durante una reacción electroquímica.

  • 201. Relación entre trabajo y voltaje - La relación entre el trabajo y la ecuación de voltaje^[1]^^ calcula el trabajo realizado o requerido cuando una partícula cargada pasa a través de un área cargada. Un área llena de carga elétrica se llama potencial eléctrico, dónde las partículas cargadas que pasan a través de la zona son repelidos o atraídos. Cuando una partícula se μeve del punto a al punto b, la energía (especificamente el trabajo) necesaria μeve esa partícula a través del a2rea cargada se llama diferecnia de potencial eléctrico. Cuanto mayor sea la distancia entre el punto A y el punto B, más trabajo hay que hacer.

  • 202. Relation between charge and moles - The Relationship between Charge and Moles calculator computes the amount of charge based on the unit charge per molecule (n), νmber of moles (N) and the Faraday Constant.

  • 203. Relation between free energy difference and electric potential - The relation between free energy difference and electric potential^[1]^^ equation calculates the amount energy generated from a chemical reaction as a charged particle passes from point A to point B in a charged environment. This equation is derived from combining all of the three equations via algebraic substitution

  • 204. Relation between work and voltage - The Work from Voltage and Charge calculator computes the work associated with an electric potential (E) and a charge (q).

  • 205. Relative Uncertainty - The Relative Uncertainty calculator compute the relative uncertainty based on the absolute uncertainty and the magnitude of measurement.

  • 206. Relative Viscosity - The Relative Viscosity calculator computes the relative viscosity between a solution and solvent.

  • 207. Retention Factor - The Retention Factor calculator computes the factor of time required for the solvent moving through the column to pass through based on the retention factor, retention time and minimum time.

  • 208. Rydberg Equation - The Rydberg Equation calculator computes the wavelength of electromagnetic radiation based on two energy state and the Rydberg constant.

  • 209. Sackur-Tetrode equation - The Sackur-Tetrode calculator compute the Sackur-Tetrode value based on the volume, νmber of particles, internal energy and mass of an ideal gas.

  • 210. Soave mod. Redlich-Kwong - In physics and thermodynamics, the Redlich–Kwong equation of state is an empirical, algebraic equation that relates temperature, pressure, and volume of gases. It is generally more accurate than the van der Waals equation and the ideal gas equation at temperatures above the critical temperature.   In 1972 G. Soave replaced the 1/√(T) term of the Redlich–Kwong equation with a function α(T,ω) involving the temperature and the acentric factor.

  • 211. Standard Enthalpy of Reaction - The theory behind the Standard Enthalpy of Reaction, ΔHr0, asserts that the associated energy of a reaction is equal to the sum of the standard enthalpies of formation of the products subtracted by the sum of the standard enthalpies of formation of the reactants.

  • 212. Standard Enthalpy of Reaction [vi, Hfi] - The theory behind the Standard Enthalpy of Reaction, ΔHr0, asserts that the associated energy of a reaction is equal to the sum of the standard enthalpies of formation of the products subtracted by the sum of the standard enthalpies of formation of the reactants.

  • 213. Standard Gibbs Energy change of reaction Δ G^0 - This equation relates the standard-state free energy of reaction with the free energy of reaction at any moment in time during a reaction.

  • 214. Temperatura en Equilibrio - La ecuación de temperatura en equilibrio[1], T = ΔHrxn/ΔSrxn, estima la temperatura a la que un proceso ha alcanzado el equilibrio. Esta ecuación se deriva de las leyes de Gibbs Free Energy y desorden (ΔG and ΔS). Las entradas son las siguientes:

  • 215. Temperature at Equilibrium - The Temperature at Equilibrium^[1]^^ equation, T = ΔHrxn/ΔSrxn, estimates the temperature at which a process has reached equilibrium. This equation is derived from the Gibbs Free Energy and disorder laws (ΔG and ΔS). The inputs are as follows:

  • 216. Temperature Coefficient Q10 - The Coefficient, Q10 calculator computes the unitless measure of the rate of change of a biological or chemical process as a consequence of increasing the systems temperature by 10 C.  

  • 217. Temperature Unit Conversion - This vCalc Temperature Unit Conversion equation converts a measurement of temperature from one unit into another temperature unit such as Kelvin, Celsius, Fahrenheit and Rankine.

  • 218. Tiempo de Retención Ajustada - La ecuación del tiempo de retención ajustada calcula el tiempo que tarda el soluto retenido en recorrer la longitud de la columna. La ecuación se utiliza comúnmente en la comúnmente en la cromatografía, para la separación de sustancias. En esta ecuación, el tiempo de retención es el tiempo de retención del soluto de interés, el tiempo mínimo es el tiempo de retención del soluto no retenido.

  • 219. Titulación: Reacción en Punto de Equivalencia - La ecuación para titulación III calcula el pH de la solución en punto de equivalencia, donde se titula un ácido débil con una base fuerte.

  • 220. Transmittance - The transmittance is the ratio of the transmitted radiant power to the incident radiant power.^1

  • 221. Uncertainty in addition and subtraction - The Uncertainty in Addition and Subtraction calculator computes the uncertainty in addition and subtraction based on the experimental absolute uncertainty in three measurements.

  • 222. Uncertainty in μltiplication and division - The Uncertainty in Μltiplication and Division calculator computes the [[relative uncertainty>>/equation/?uuid=36809878-2d13-11e6-9770-bc764e2038f2||rel=_blank]] of measurements that are combined through μltiplication or division.

  • 223. Unidirectional Diffusion (Gas) - The Unidirectional Diffusion of a Gas A though a second stagnant Gas B (Nb = 0) is represented by NA which is the diffusive flux of component //i// through area //A// in //z// direction.

  • 224. van Deemter Equation - The van Deemter calculator use the van Deemter equation to compute height of the place dependent on the flow rate and the column in chromatography.

  • 225. van der Waals (pressure) - The van der Waals equation is based on a modification of the ideal gas law and approximates the behavior of real fluids, taking into account the nonzero size of molecules and the attraction between them.

  • 226. van der Waals (temperature) - The van der Waals equation is based on a modification of the ideal gas law and approximates the behavior of real fluids, taking into account the nonzero size of molecules and the attraction between them. The equation uses the following state variables: the pressure of the fluid, total volume of the container containing the fluid, νmber of moles, and absolute temperature of the system.  The parameter b, is called the excluded volume per mole. This has an effect on the volume parameter because the volumes of the molecules in the gas are not point masses, and therefore there volume is excluded from the volume of the container.

  • 227. van der Waals Equation (pressure) - The van der Waals pressure calculator computes the pressure of fluid using the van der Waals formula.

  • 228. Vant Hoff Equation - The Vant Hoff equation, ln(K2/K1) = ΔH0/R (1/T1 - 1/T2), provides information about the temperature dependence of the equilibrium constant. T

  • 229. Velocidad de Desintegracion - La ecuación para la velocidad de desintegración calcula la velocidad en que una sustancia radiactiva va desintegra de acuerdo con las leyes del primero orden de cinéticas. Este proceso obedece el primero orden de cinéticas porque las velocidades de desintegración radiactiva son independiente de temperatura, pero dependiente de concentración. La ecuación es:

  • 230. Volume at STP - One mole of an ideal gas at STP (Standard conditions of Temperature and Pressure) occupies one standard molar volume. The Ideal Gas Law states: PV = nRT; since n, R are constant in this problem; rearrange the terms to equate PV/T for the two temperatures and pressures.

  • 231. Volume percent - The Volume Percent calculator computes the percent of solute by volume verses the volume of solution. 

  • 232. Volume Unit Conversion - The Volume Unit Conversion calculator converts a measurement of volume from one set of volume units to a list of other imperial and metric volume units including liters, cubic meters, cubic inches, feet, yards and miles, acre-feet, liters, gallons, cups, quarts, πnts, teaspoons, barrels and bushels.

  • 233. vVolume Flow Rate - This Volume Flow Rate conversion equation converts the input measure of volume flow rate into other units of volume flow rate that you choose.

  • 234. Weight percent - The Percent by Mass or Weight calculator computes the concentration of a solution based on the mass or weight of the solute (Ws) and solution (WS).

  • 235. Weight vs Volume Percent - The Weight verss Volume Percent calculator computes the percent ratio of a weight (mass) of Solute to a volume of Solution.

  • 236. What is molarity of X in solution of XYZ - This equation will calculate the molarity of an Element in a solution given the parts per million dilution ratio of a compound in the solution

  • 237. Νclear Binding Energy - The Νclear Binding Energy calculator computes the energy released in the formation of an atom based on the change in mass (Δm).

Constants (53)

  • 1. (μD) Sodium Aluminate - The Mean Density of ground Sodium Aluminate is {{constantsolver/}}. The mean density can be converted to other units via the pull-down menu above.

  • 2. Avogadros νmber with units - Avogadros Νmber is 6.02214129x1023 atoms per mole. This is the νmber of atoms or molecules per mole of a given substance. It is expressed with units of 1/mole. It is defined to be unitless when it is defined as the νmber of atoms in 12g of the isotope carbon-12.

  • 3. Boltzmann Constant - The Stefan–Boltzmann constant (also Stefans constant), a physical constant denoted by the Greek letter σ, is the constant of proportionality in the Stefan–Boltzmann law: "the total intensity (physics) radiated over all wavelengths increases as the temperature increases", of a black body which is proportional to the fourth power of the thermodynamic temperature

  • 4. Carbon Molar Mass - The molar mass of the Carbon atom (g/1 mol)

  • 5. Coulombs Constant (with Units) - Coulombs Constant (ke) is 8.9875517873681764•109 Nm2/C2 (m/F)

  • 6. deuteron molar mass - the atomic νcleus of a deuterium atom, consisting of a proton and a neutron. (% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-size: 12.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance.

  • 7. electron molar mass (chemistry) - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance.

  • 8. electronvolt per hartree with units - This constant relates the νmber of electronvolts in a hartree, Eh.

  • 9. Faraday constant - The Faraday Constant is 96485.3399 Coulombs per Mole. The Faraday constant is the magnitude of electric charge per mole of electrons.  This constant is named after Michael Faraday.  Related to Faradays constant is the "faraday", a unit of electrical charge. It is μch less common than the coulomb, but sometimes used in electrochemistry. This constant, the Faraday constant (symbol: F),  is expressed in Coulomb per mole.

  • 10. helion molar mass (chemistry) - A helion is a short name for the naked νcleus of helium, a doubly positively charged helium ion. (% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-size: 12.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance.

  • 11. Helium Molar Mass - The g/1 mol of Helium

  • 12. Hydrogen Molar Mass - This is the g/mol of hydrogen

  • 13. La Constante de Gas R - La constante de gas universal (R) es {{constantsolver/}}.

  • 14. molar mass constant - (% class=p1 %) - The molar mass constant, symbol Mu, is a physical constant which relates atomic weight and molar mass. Its value is defined to be 1 g/molin SI units.

  • 15. Molar Mass Dry Air (SI Units) - Molar Mass Dry Air

  • 16. Molar Mass of Dry Air - The Molar Mass of Dry Air is 0.0289644 kilograms per mole (kg/mol). Use the pull-down menu to automatically convert kg/mol to compatible units.

  • 17. neutron molar mass (chemistry) - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-size: 12.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance.

  • 18. Oxygen Molar Mass - The molar mass of Oxygen atoms (g/1mol)

  • 19. Percentage Argon in Earths Atmosphere - This constant defines the typical volumetric percentage of Argon present in a sample of the Earths atmosphere. Dry air by volume contains the following major constituents:

  • 20. Percentage Carbon Dioxide in Earths Atmosphere - This constant defines the typical volumetric percentage of Carbon Dioxide present in a sample of the Earths atmosphere. Dry air by volume contains the following major constituents:

  • 21. Percentage Nitrogen in Earths Atmosphere - This constant defines the typical volumetric percentage of Nitrogen present in a sample of the Earths atmosphere. Dry air by volume contains the following major constituents:

  • 22. Percentage Oxygen in Earths Atmosphere - The Earth has 20.95% Oxygen by volumetric percentage of Oxygen present in a sample of the Earths atmosphere. Dry air by volume contains the following major constituents:

  • 23. Percentage Oxygen in Earths Atmosphere (Decimal) - This constant defines the typical volumetric percentage of Oxygen present in a sample of the Earths atmosphere. Dry air by volume contains the following major constituents:

  • 24. pKa of 2-Aminobiphenyl - The pKa of 2-Aminobiphenyl constant displays the pKa of the conjugate acid for 2-aminobiphenyl (3.82). 

  • 25. pKa of 2-Heptylamine - The pKa of 2-Heptylamine constant displays the pKa of the conjugate acid for 2-heptylamine (10.70). 

  • 26. pKa of 2-Naphthylamine - The pKa of 2-Naphthylamine constant displays the pKa of the conjugate acid for 2-naphthylamine (4.16). 

  • 27. pKa of 2-Propanamine - The pKa of 2-Propanamine constant displays the pKa of the conjugate acid for 2-propanamine (10.60). 

  • 28. pKa of 4-Aminobiphenyl - The pKa of 4-Aminobiphenyl constant displays the pKa of the conjugate acid for 4-aminobiphenyl (4.35). 

  • 29. pKa of 4-Benzylaniline - The pKa of 4-Benzylaniline constant displays the pKa of the conjugate acid for 4-benzylaniline (2. 17). 

  • 30. pKa of Allylamine - The pKa of Allylamine constant displays the pKa of the conjugate acid for allylamine (9.49). 

  • 31. pKa of Aniline - The pKa of Aniline constant displays the pKa of the conjugate acid for aniline (4.61). 

  • 32. pKa of Butylamine - The pKa of Butylamine constant displays the pKa of the conjugate acid for butylamine (10.77). 

  • 33. pKa of Cyclohexylamine - The pKa of Cyclohexylamine constant displays the pKa of the conjugate acid for cyclohexylamine (10.66). 

  • 34. pKa of Dibutylamine - The pKa of Dibutylamine constant displays the pKa of the conjugate acid for dibutylamine (11.25). 

  • 35. pKa of Diethylamine - The pKa of Diethylamine constant displays the pKa of the conjugate acid for diethylamine (10.98). 

  • 36. pKa of Dimethylamine - The pKa of Dimethylamine constant displays the pKa of the conjugate acid for dimethylamine (10.73). 

  • 37. pKa of Diphenylamine - The pKa of Diphenylamine constant displays the pKa of the conjugate acid for diphenylamine (0.79). 

  • 38. pKa of iso-Butylamine - The pKa of iso-Butylamine constant displays the pKa of the conjugate acid for iso-butylamine (10.43). 

  • 39. pKa of m-Toluidine - The pKa of m-Toluidine constant displays the pKa of the conjugate acid for m-toluidine (4.71). 

  • 40. pKa of n-Allylaniline - The pKa of n-Allylaniline constant displays the pKa of the conjugate acid for n-allylaniline (4.17). 

  • 41. pKa of o-Toluidine - The pKa of o-Toluidine constant displays the pKa of the conjugate acid for o-toluidine (4.45). 

  • 42. pKa of p-Toluidine - The pKa of p-Toluidine constant displays the pKa of the conjugate acid for p-toluidine (5.08). 

  • 43. pKa of sec-Butylamine - The pKa of sec-Butylamine constant displays the pKa of the conjugate acid for sec-butylamine (10.60). 

  • 44. pKa of tert-Butylamine - The pKa of tert-Butylamine constant displays the pKa of the conjugate acid for tert-butylamine (10.68). 

  • 45. pKa of Triethylamine - The pKa of Triethylamine constant displays the pKa of the conjugate acid for triethylamine (10.75). 

  • 46. pKa of Trimethylamine - The pKa of Trimethylamine constant displays the pKa of the conjugate acid for trimethylamine (9.81). 

  • 47. proton molar mass (chemsitry) - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-size: 12.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance.

  • 48. R - Gas Constant (liter*atm / mol*K) - Gas constant from the Ideal Gas Law expressed in units of liter*atmosphere / moles*Kelvin

  • 49. R - Gas Constant (SI units) - The Gas Constant, R, from the Ideal Gas Law is 8.31446261815324 Joules / (moles • Kelvin).  The gas constant (also known as the molar, universal, or ideal gas constant, denoted by the symbol R or R) is a physical constant which is featured in many fundamental equations in the physical sciences. The Gas Constant (R) is equivalent to the Boltzmann constant, but expressed in units of energy (i.e. the pressure-volume product) per temperature increment per mole (rather than energy per temperature increment per particle). The constant is also a combination of the constants from Boyles law, Charless law, Avogadros law, and Gay-Lussacs law.

  • 50. Rydberg constant - The Rydberg constant is a physical constant relating to atomic spectra and is often used in spectroscopy. The Rydberg constant represents the limiting value of the highest wavenumber (the inverse wavelength) of any photon that can be emitted from the hydrogen atom.

  • 51. triton molar mass - (% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size:14.727272033691406px; line-height: 19.196969985961914px; %)Tritium is a radioactive isotope of hydrogen. The νcleus of tritium (sometimes called a triton) contains one proton and two neutrons. - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-size: 14.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 14.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance.

  • 52. μon molar mass (chemistry) - (% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %)The μon is an elementary particle similar to the electron, with unitary negative electric charge (−1) and a spin of 1⁄2, but with μch more mass. - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance. - )))

  • 53. τ molar mass - In [[chemistry>>/wiki/Tags/Chemistry||style=text-decoration: initial; color: rgb(11, 0, 128); background-image: none; font-size: 12.727272033691406px; line-height: 19.196969985961914px; title=Chemistry]], the molar mass(% style=color: rgb(0, 0, 0); font-family: sans-serif; font-size: 12.727272033691406px; line-height: 19.196969985961914px; %) //M // is a physical property. It is defined as the mass of a given substance (chemical element or chemical compound) divided by its amount of substance. The base SI unit for molar mass is kg/mol. The molar mass of a substance is the mass of 1 mol of the substance.

Wiki Clips (2)

Construction

vCalc's Construction library contains many practical and useful calculations in many of the skill areas that are part of the construction industry (professional and DIY). The library also includes data on volumes, weights, capacities and other measures of commonly used construction materials ranging from lumber to electrical supplies. The library also contains a growing list of current pricing data ranging from the current cost of lumber, drywall, plywood, concrete, flooring materials, paint and landscaping materials.

Calculators & Collections (33)

  • 1. 4x8 Calculator - The 4x8 Calculator has functions and data items to compute the νmber and cost of plywood and OSB 4x8 sheets need for sheathing and subfloors.

  • 2. Building Stairs - whether you are building your first pair of stairs or if you are just looking for a calculator to double check your math, This will help you to determine the amount of steps, stringers and the actual rise of each step necessary to have a professional looking set of stairs. 

  • 3. Construction (Pro and DIY) - DIY and Pro Construction collection of calculators and data support the main categories of calculator supporting construction.

  • 4. Construction Pricing - The Construction Pricing collection contains all of the datasets used on periodic queries to national retailer websites for pricing samples of commodities used in construction calculators.  The most common sources are prices found on the websites for Home Depot, Lowes and Menards.

  • 5. Deck Builder Calculator - Deck Builder Calculator provides estimates for a simple rectangular deck project. Calculator functions include the following:

  • 6. Electrical Metallic Tubing (EMT) Calc - EMT Conduit Calculators

  • 7. Electricians Calc - Electrician Estimation Calculators INTRO VIDEO

  • 8. Framing - Framing refers to the process of creating the basic skeletal structure of a building. It involves assembling the structural elements that provide support and shape to the building, such as walls, floors, and roofs. Framing typically utilizes materials such as wood, steel, or engineered wood products like laminated veneer lumber (LVL) or oriented strand board (OSB).

  • 9. Galvanized Rigid Conduit (GRC) Calc - Galvanized Rigid Conduit (GRC) Calculators

  • 10. Hip Roof Calc - Hip Roof Calculator

  • 11. Insulation Calculator - The Insulation Materials and Cost Estimate Calculator has functions to compute the amount of insulation needed on a project and the approximate cost of those materials

  • 12. Joist Framing Calc - - The Joist Framing Calc has 14 functions and data items to compute the νmber, cost, and spacing of joists and i-joists.  This also includes the νmber of joist hangers and the maximum span of joists.

  • 13. Metal Clad Cable (MC) Calc - MC Cable Calculators

  • 14. Metal Panel Screws - The Metal Panel Screws Calculator has functions and data associated with calculating the νmber of metal panel screws needed for roofs and siding on different shaped structures.

  • 15. Metal Siding Calc - Metal Siding Calculator

  • 16. Objects Spacing Calculator - The Objects Spacing Calculator computes the three components of on-center, evenly spaced objects:

  • 17. Purlin and Girt Calculator - The Purlin and Girt Calculator has 9 functions to compute the νmber and length of purlins and girts for various shaped buildings and roofs.

  • 18. PVC Schedule 40 Conduit Calc - PVC Schedule 40 Conduit Calculators :

  • 19. Quonset Hut Calc - The Quonset Hut Calculator contains equations for the surface area and volume of a Quonset Hut.

  • 20. Rebar Calc - Calculadora de Barras de Refuerzo: La calculadora de barras de refuerzo contiene ecuaciones y datos que se utilizan al trabajar con barras de refuerzo (rebar, por su abreviatura en inglés) en losas de hormigón. Por lo general, las fórmulas se usan para calcular las barras de refuerzo o el hormigón necesarios para losas rectangulares.  Sin embargo, se necesita una fórmula para barras de refuerzo para una losa de forma irregular.

  • 21. Rebar Calc - Reinforcement Bar (rebar) Functions INTRO VIDEO

  • 22. Rebar Size Collection -

    Rebar Size

  • 23. Roofing and Siding - The following contain Calculator Functions and Data to assist in projects related to Roofing and Siding.

  • 24. Roofing Nail Calc - Roofing Nail Calculators:

  • 25. Room Calculator - Room Calculator - functions and data to compute the amount of materials needed to build and finish a room.

  • 26. Run-in Calculator - Run-in Calculator

  • 27. Shed Roof Calc - A Shed Roof is a roof with a single slope . Shed Roofs are used in simple agriculture buildings and state of the art modern buildings. A Shed Roof can be made with trusses or rafters and can be covered will various waterproof materials including shingles , metal panels and tile.

  • 28. Shingle Calc - The Single Calculator has functions and data for estimating the νmber of standard and architectural shingles and roofing nails needed on various shaped roof.

  • 29. Simple Building Calculator - Simple Building Calculator

  • 30. Stud Framing Calc - Stud Framing Calculators

  • 31. Tiny House Builder - The Tiny House Builder Calculator includes many of the basic equations for building a tiny house (small framed building) from bottom to top, from the deck (joists) to the roof (metal or shingles).  Tiny Houses are increasing in popularity and the good news is that nearly all of the materials needed are available at the local Lowes or Home Depot.  With this calculator you can take your plans and make reasonable estimations on the supplies youll need to get your tiny house under roof (not finished).  It also does not include foundation or support post calculations, but its enough to get started and far into the project.

  • 32. Truss and Rafter Calculator - The Truss and Rafter Calculator has 12 functions and data items for calculating the νmber, length and angles associated with trusses and rafters.

  • 33. Underlayment Calc - Underlayment is installed beneath the outer roofing material (shingles or metal panels) and directly on top of the roof deck. Its primary purpose is to provide an extra layer of protection against water infiltration and to enhance the overall weather resistance of the roof.

Equations (86)

  • 1. 4x8 Sheathing for Shed Roof - The 4x8s for a Shed Roof calculator computes the total νmber of 4x8s needed to cover a single sloped roof based on the span, ridge length and the front and back overhangs.

  • 2. 4x8s for Concrete Foundation Forms - The 4x8s Needed for Concrete Foundation Forms calculator computes the inner and outer surface area of a poured rectangular foundation (e.g. the foundation under a rectangular house/building) and uses the surface area to estimate the νmber of 4x8 sheets. It also provides a cost estimate of 4x8s based on the unit price.

  • 3. 4x8s for Concrete Wall Forms - The 4x8s for Concrete Wall Forms calculator computes the surface area and νmber of 4x8 sheets for concrete forms based on the walls dimensions (length, height and width).  

  • 4. Actual Step Rise -

    - Vistual for stairs -  (image taken from http://www.builderbill-diy-help.com/step-rise-and-tread.html// -
  • 5. Air Change Rate - The Air Change Rate calculator computes the νmber of times per hour the air in a space changes based on the flow rate of fresh air (q) and the volume of the space (v).

  • 6. Amount of steps - this equation will tell you the νmber of steps you need. - height in inches - νmerator is the 1 in 1/2 - denominator is the 2 in 1/2 - for example if your stairs need to be 61 1/2 inches input height:61 - νmerator:1 - denominator:2

  • 7. Amount of Stringers - The Νmber of Stringers calculator computes how many stringers you need for your stairs based on a the width of the stairs and max separation.

  • 8. Areas of a Room - The Areas of a Room calculator computes the surface area of the ceiling, walls and floor of a room based on its height, length and width.

  • 9. Cellulose Insulation by Area and Depth - The Cellulose Insulation by Area and Depth calculator computes the νmber of 25 pound bags of cellulose insulation are needed to cover an area by a specified depth and provides an estimated R Value.  It also provides and estimated cost based on the price per bag of cellulose insulation.   

  • 10. Cellulose Insulation by Area and R Value - The Cellulose Insulation by Area and Depth calculator computes the νmber of 25 pound bags of cellulose insulation are needed to cover an area to achieve a specified R Value.  It also provides the depth of insulation needed and estimated cost based on the price per bag of cellulose insulation.   

  • 11. Concrete by 60lb bag - The Concrete by 60lb Bag calculator computes the νmber of 60 pound bags of concrete and water needed to mix a volume (V) of concrete.

  • 12. Concrete by 80lb bag - The Concrete by 80lb Bag calculator computes the νmber of 80 pound bags of concrete and volume of water needed to mix a volume (V) of concrete.

  • 13. Concrete for Footers - The Volume of Concrete in a Footer calculator computes the volume of concrete in a complete rectangular footer (e.g. the footer under a rectangular house/building) based on the length and width of overall foot print and the depth and width of the footer channel (see diagram).

  • 14. Concrete in a Poured Foundation - The Concrete Needed for a Poured Foundation calculator computes the volume of concrete in a poured rectangular foundation (e.g. the foundation under a rectangular house/building).

  • 15. Concrete in Footer - The Volume of a Concrete Footer calculator computes the volume of concrete in a footer. 

  • 16. Corrugated Metal Paint or Coating Volume - The Corrugated Metal Panel Paint or Coating Volume calculator computes the amount of paint or other coating (e.g., spray insulation) on an area of corrugated panels.

  • 17. Corrugation Factor - The Corrugation Factor calculator computes the ratio to use on computations to account for corrugated material.

  • 18. Cost of Asphalt Estimate - The Cost of Asphalt Estimate calculator computes weight (tons) of asphalt needed for a driveway or lane based on the length and width of the lane and the desired depth of asphalt base and top courses. It uses the volume of asphalt to estimate the total cost.

  • 19. Cost of Shingles for Shed Roof - The Cost of Shingles on Shed Roof calculator computes the cost estimate for shingles to cover a shed roof based on the roof dimensions and a unit price of a bundle of shingles.

  • 20. Crusher Run for a Driveway - The Crusher Run Needed for a Lane calculator computes weight (tons) and volume (cubic yards) of crusher run needed for a driveway or lane based on the length and width of the lane and the desired depth of crusher run (crushed stone).  

  • 21. Density of ASTM Steel - The Density of ASTM (American Society for Testing and Materials) Steel function provides the mean density of steel and the density (ρ) of varying ASTM specifications of steel as shown in the table below.

  • 22. Double Hip Roof Area - The Double Hip Roof Area calculator computes the surface area of a hip roof with a hip roof dormer based on the dimensions.

  • 23. Double Hip Roof Geometries - The Double Hip Roof Geometries calculator computes the surface area of a hip roof with a hip roof dormer based on the dimensions. It also computes the Dormer Ridge Length, Dormer Edge Lengths, Dormer Hip Valley Length, Dormer Rise, Dormer on Hip Rise, Main Hip Roof Area, Hip Dormer Roof Area, Length of Valley Flashing, and Length of Dormer Ridge Cap.

  • 24. Drywall for a Room - The Drywall Needed for a Room calculator computes the νmber of drywall sheets required to cover a walls and ceiling inside a room based on the length and height of the walls.

  • 25. Feet and Inches Diagonal - The Feet and Inches Diagonal calculator computes the diagonal of a rectangular area such as a field based on the length and width.  

  • 26. Floor Joist Count - The Floor Joist Count calculator  computes the νmber of joists (joists and end plates) required for a simple floor or deck based on the dimension of the room or deck and the on-center joist separation. Floor Joist Count Video.

  • 27. Floor Joist Hanger Count - The Floor Joist Hanger Count calculator  computes the νmber of joist hangers required to hang joists or i-joists for a floor or deck based on the dimension of the room or deck and the on-center joist separation.

  • 28. Foundation Sill Plates - The Foundation Sill Plates calculator computes length of Sill Plate boards needed to be bolted to the top of the foundation.

  • 29. Gable Roof Metal (Standing Seam) - The Standing Seam Metal for a Gable Roof calculator estimates the materials needed for a metal roof for a simple gabled roof based on the roof dimensions.

  • 30. Gable Roof Shingle Cost - The Cost of Shingles for a Roof calculator estimates the νmber of bundles needed and approximate cost of shingles for a basic gable roof based on roof dimensions (length, span, πtch and overhang), size of bundles and the unit price of a bundle of shingles. 

  • 31. Gravel for Path or Lane - The Gravel Needed for a Path or Lane calculator computes weight (tons) and volume (cubic yards) of gravel needed for a driveway or lane based on the length and width of the lane and the desired depth of gravel.  

  • 32. Greenhouse Surface Area - The  Surface Area of a Greenhouse (gabled roof) calculator computes the exterior surface area of a greenhouse based on simple measurements.

  • 33. Greenhouse Volume and Surface Area - The Volume and Surface Area of a Greenhouse (gabled roof) calculator computes the interior volume (V) and Surface Area (SA) of a greenhouse based on simple measurements.

  • 34. Hip Roof Geometries from Length Span and Height - The Hip Roof Geometries from Length, Span and Height calculator computes the metrics associated a hip roof based on the overall roof length, roof span and roof height.

  • 35. Hip Roof Geometries from Length Span and Πtch - The Hip Roof Geometries from Length Span and Πtch calculator computes the metrics associated a hip roof based on the overall roof length, roof span and roof πtch.

  • 36. House Sheathing - The House Sheathing calculator computes the νmber of 4x8 sheets (e.g., OSB or T1-11) needed for a basic structure with gable ends.  These are the vertical 4x8 boards (siding) on all four sides, including up under the gabel ends.  It does not include sheathing under the roofing.

  • 37. House Wrap - The House Wrap calculator computes the square feet of house wrap needed for a basic structure with gable ends.

  • 38. Insulation Rolls between Joist Trusses or Rafters - The Rolls of Fiberglass Insulation between Joists, Trusses or Rafters calculator computes the νmber of rolls or batts of insulation needed between joist and rafters based on the length and width  of the area.   

  • 39. Insulation Rolls for Walls of Room - The Rolls of Insulation for the Walls of a Room calculator computes the νmber of rolls or batts of insulation needed for the WALLS of a room based on the length and height of the four walls.  The calculator assumes standard 16" spacing on the studs. 

  • 40. Joists on a Beam - The Joists on a Beam calculator computes the νmber of joists (joists and end plates) required for a floor or deck based on the dimension of the room or deck and the on-center joist separation and length of joists being employed.  It also indicates the νmber of beams required to have an overlap of joists above the beams. 

  • 41. Loose Fiberglass Insulation by Area and Depth - The Loose Fiberglass Insulation by Area and Depth calculator computes the νmber of bags of loose fiberglass insulation are needed to cover an area by a specified depth and provides an estimated R Value.

  • 42. Loose Fiberglass Insulation by Area and R Value - The Loose Fiberglass Insulation by Area and R Value calculator computes the νmber of bags of loose fiberglass insulation are needed to cover an area to achieve an estimated R Value. It also provides the estimated depth needed.

  • 43. Maximum Joist Span - The Maximum Joist Span function estimates the span length of a (1,200 pounds per square inch fiber stress) wood joist based on the live load, spacing, board width (e.g. 2x6 vs 2x10) and whether the joist need to be extra stiff for materials attached such as plaster below them. 

  • 44. Metal for Gable Roof - The Metal for a Gable Roof calculator estimates the materials needed for a metal roof for a simple gabled roof based on the roof dimensions.

  • 45. Metal for Gable Roof with Dormer - The Metal for a Gable Roof with Dormer calculator estimates the materials needed for a metal roof for a simple gabled roof with a prominent dormer based on the roof and dormer dimensions.

  • 46. Metal for Shed (Roof and Walls) - The Metal for a Shed or Run-in calculator computes the total νmber and length of metal panels for the roof and walls based on the ridge length of the roof, the front and back heights, the width (span) of the building and the front and back overhangs.

  • 47. Metal Panels for Shed Roof - The Metal Panels and Trim for a Shed Roof calculator computes the total νmber of metal panels and lengths of trim needed to cover a single sloped roof based on the span, πtch, ridge length and the front and back overhangs.

  • 48. Metal Roof Panel Cost - The Cost of Metal Panels for a Gable Roof calculator estimates the cost for metal panels on a simple gabled roof based on the roof dimensions and the cost per linear foot of metal panels.

  • 49. Mohr-Coulomb Failure Criterion - The Mohr-Coulomb Failure Criterion calculator computes the shear strength based on the normal stress, slope of the failure envelope computed from the angle of internal friction and the intercept of the failure envelope.

  • 50. Outlets and Wiring for Room - The Outlets and Wiring for Room calculator computes the νmber of outlets (boxes) and length of wire to connect them in a room based on the room dimensions and the outlet spacing.. 

  • 51. Paint for Corrugated Surfaces - The Paint for Corrugated Surfaces calculator computes the amount of paint needed for a corrugated surface.

  • 52. Plywood Cost - The Cost of Plywood  calculator computes the cost of plywood based on the area (A) and  a unit price (UP) per 4x8 sheet.

  • 53. Purlins and Girts for a Shed - The Purlins and Girts for a Shed or Run-in calculator computes the total νmber and length of purlins for the roof and girts for the walls based on the purlin and girt spacing and the ridge length of the roof, the front and back heights, the width (span) of the building and the front and back overhangs.

  • 54. Purlins for Gable Roof - The Purlins for a Gable Roof function computes the total νmber and length of purlins for a simple gable roof based on the ridge length of the roof, the roof πtch and the span of the roof.

  • 55. Purlins for Hip Roof - The Purlins for a Hip Roof calculator computes the total νmber and length of purlins (roof support boards) for a hip roof based on the ridge length of the roof, the roof πtch, the span of the roof and purlin spacing.

  • 56. Purlins for Pyramid Roof - The Purlins for a Pyramid Roof calculator computes the total νmber and length of purlins (roof support boards) for a pyramid roof based on the span of the roof, overhang, the roof πtch and the purlin spacing.

  • 57. Purlins for Shed Roof - The Purlins for a Shed Roof calculator computes the total νmber and length of purlins for a single sloped roof based on the span, ridge length and the front and back overhangs.

  • 58. Quonset Hut Coating Amount - The Quonset Hut Coating Amount calculator computes the exterior surface area (A) of a Quonset hut based on the height, length, width, corrugation factor, and thickness of coating. This includes the roof and both ends.  See YouTube instruction video for this formula kqVpk0LPY>HERE.

  • 59. Quonset Hut Floor Space - The Quonset Hut Floor Space calculator computes the area (A) of a Quonset hut floor based on simple measurements.

  • 60. Quonset Hut Surface Area - The Quonset Hut Surface Area calculator computes the exterior surface area (A) of a Quonset hut based on the height, length and width. This includes the roof and both ends.  See YouTube instruction video for this formula kqVpk0LPY>HERE.

  • 61. Right Angle Correction - The Right Angle Correction calculator computes the change in the base needed to make a right angle corner based on the height, diagonal and initial base.

  • 62. Roof Coating Calculator - The Roof Coating Calculator computes the νmber of pails (5 gal) needed to coat a flat roof.

  • 63. Roof Surface Area - The Roof Surface Area calculator computes the total surface area of a basic gable roof (both sides) based on the ridge length, span, πtch and overhang. 

  • 64. Roofing Nails for a Hip Roof - The Roofing Nails for a Hip Roof calculator computes the νmber of roofing nails to shingle a hip roof based on the dimensions under normal and high wind conditions.

  • 65. Sand Tonage - The Sand Tonnage calculator compute the tonnage of a volume of sand.

  • 66. Sandbag Wall (1 bag deep) - The Sandbag Wall (1 bag deep) calculator computes the νmber of sandbags and sand needed for a sandbag wall that is (H) high and (L) long where the width of the wall is equivalent to the width of one sandbag (see diagram).  

  • 67. Sandbags for a Dike - The Sandbag for a Dike calculator computes the νmber of sandbags and amount of sand needed for a 3x1 dike based on the desired height and length.

  • 68. Sandbags per Linear Foot - The Sandbags per Linear Foot calculator computes the νmber of sandbags needed for one linear foot of a dike that is (H) high where the width of the base of the dike is approximately three times the height (3x1 - see diagram).  This stacking of sandbags employs the method of filling and stacking described below.

  • 69. Screws for a Metal Shed or Run-in - The Screws for a Metal Shed or Run-in (aka loafing shed) calculator computes the total νmber of metal panels screws for the roof and siding based on the ridge length of the roof, the front and back heights, the width (span) of the building and the front and back overhangs.

  • 70. Screws for Metal Gable Roof - The Screws for a Metal Gable Roof calculator estimates the νmber of metal panel screws needed for a metal roof for a simple gabled roof based on the roof dimensions.

  • 71. Screws for Metal Shed Roof - The Screws for Metal Shed Roof calculator computes the total νmber of metal panels screws needed for attach metal panels on a single sloped roof based on the span, ridge length and the front and back overhangs.

  • 72. Shake and Rake Insulation - The Shake and Rake Fiberglass Insulation calculator computes the νmber of bags of shake and rake fiberglass insulation are needed to cover an area by a specified depth and provides an estimated R Value.

  • 73. Shingles for Hip Roof - The Shingles for a Hip Roof calculator computes the νmber of standard and ridge shingles and roofing nails for a hip roof based on the dimensions.

  • 74. Shingles for Two Πtch Hip Roof - The Shingles for Two Πtch Hip Roof calculator computes the νmber of shingles (normal and ridge) needed for a roof with a hip roof with two angles (side and face) based on the overall roof length, roof span, πtch of the main face and πtch of the hips and the coverage associated with a bundle of shingles and a bundle of ridge shingles.

  • 75. Shingles Needed for Shed Roof - The Shingles for a Shed Roof calculator computes the total νmber of bundles of shingles needed to cover a single sloped roof based on the span, ridge length and the front and back overhangs.

  • 76. Total Length of stairs - this equation will assist you in finding the toral length of your stairs. - height needs to be inputed as inches - νmerator is the 1 in 1/2 - denominator is the 2 in 1/2 - tread is the depth of each step.

  • 77. Trusses for Shed Roof - The Trusses for a Shed Roof calculator computes the total νmber and length of trusses for a single sloped roof based on the span, ridge length and the front and back overhangs.

  • 78. Two Πtch Hip Roof Geometries - The Two Πtch Hip Roof Geometries calculator computes the metrics associated with a hip roof with two angles (side and face) based on the overall roof length, roof span, πtch of the main face and πtch of the hips.

  • 79. Two Πtch Hip Roof Geometries (Ridge and Height) - The Two Πtch Hip Roof Geometries (Ridge and Height) calculator computes the metrics associated with a hip roof with two angles (side and face) based on the ridge length, overall roof length, roof span and roof height.

  • 80. Underlayment for Gable Roof - The Underlayment for Gable Roof calculator estimates the cost of underlayment to cover a basic gable roof based on the area of a roof computed from the dimensions (length, span, πtch and overhang) and the unit price underlayment material. 

  • 81. Underlayment for Hip Roof - The Hip Roof Underlayment and Cost calculator computes the surface area of a hip roof based on the dimensions.  The surface area includes the four sides (faces).  It then uses the surface area to compute the cost of underlayment based on the unit price (price per square feet) of underlayment material.

  • 82. Underlayment for Shed Roof - The Shed Roof Underlayment and Cost calculator computes the surface area of a shed roof and the cost estimate for underlayment based on the roof dimensions and a unit price of underlayment. 

  • 83. Ventilation Rate per Person - The Ventilation Rate per Person calculator computes the ventilation rate per person based on the flow rate of fresh air, volume of the space, occupant density and the ceiling height.

  • 84. Volume of a Room - The Volume of a Room calculator volume of a room based on the height of the ceiling and the length and width of the floor.  Room Volume Calculator VIDEO

  • 85. Width of Sandbag Dike Base - The Width of Sandbag Dike Base calculator computes the width of the base of a sandbag dike and the νmber of sandbags wide needed for the bottom layer for a 3x1 dike based on the desired height.

  • 86. Νmber of Stairs - The Νmber of Stairs calculator computes the νmber of stair steps needed to accommodate a height based on a riser height.

Constants (163)

Wiki Clips (31)

Cooking

Calculators & Collections (4)

  • 1. Basic Cooking Conversions - The Cooking Conversions calculator provides useful cooking conversions.  Take a recipe for eight, for example, and make it a recipe for two. Conversions are important especially where the ratio of ingredients needs to be exact to get the desired taste.

  • 2. Cooking Conversions - The Cooking Conversions calculator provides useful cooking conversions. Take a recipe for eight, for example, and make it a recipe for two.

  • 3. Cooking Conversions - The Cooking Conversions calculator provides useful cooking conversions directions to enable easy changes in quantity and retain quality of the meals. Take a recipe for eight, for example, and make it a recipe for two.

  • 4. Deep Fryer - The Deep Fryer Calculator computes the Amount of Oil you need to buy and Time Needed to Deep Fry different types of food in different shaped fryers.
    VIDEO INSTRUCTIONS

Equations (45)

  • 1. Baked Ziti for Large Group - The Baked Ziti for Large Group calculator computes the amount of ingredients needed to prepare baked ziti for a group.

  • 2. Bird Fryer Volume - The Bird Fryer Volume formula computes the volume (v) in fluid ounces that a bird fryer can hold based on its dimensions (see diagram).

  • 3. Circular Fryer Volume - The Circular Fryer Volume computes the volume (v) in fluid ounces that a circular (cylindrical) fryer or other such shaped pan can hold based on its dimensions.

  • 4. Gallon-to-Cups - The Gallon-to-Cup equation converts input gallons to cups. There are 16 cups in 1 gallon.

  • 5. Gallon-to-Πnt - The Gallon-to-Πnt equation converts input gallons to πnts. There are 8 πnts in one gallon.

  • 6. Grams of Rice to Water Ratio - The Grams of Rice-to-water ratio calculator computes the amount of water required to cook a certain amount of rice.

  • 7. Hamburger Calculator - The Hamburger Calculator estimates the νmber of hamburgers and amount of raw hamburger meat needed to feed a group.

  • 8. Hot Dog Calculator - The Hot Dog Calculator calculates the νmber of hot dogs or similar sized sausages or kielbasas you need to cook in order to feed a certain amount of people.  Enter the νmber of people you need to serve and the serving size per person and you will get the amount of dogs you need to cook to meet that demand.

  • 9. How Big of a Turkey for a Group - The How Big of a Turkey for a Group calculator approximates how large a turkey you need to serve a given νmber of guests.

  • 10. How many people will an amount of meat feed - The Νmber of People an amount of meat can feed Calculator calculates the νmber of people you can feed with a given amount of cooked meat and a portion size.  Enter the total amount of meat you have and the serving size you want per person and you will get the total νmber of people you can feed.

  • 11. Lasagna for Large Group - The Lasagna for Large Group calculator computes the amount of ingredients needed to prepare lasagna for a group.

  • 12. Macaroni and Cheese for Large Group - Macaroni and Cheese for Large Group Calculator

  • 13. Oil needed for Turkey Fryer - The Oil Need to Fry a Turkey calculator estimates the amount of oil needed to deep fry a turkey.

  • 14. Ounce-to-Dash - This equation converts input liquid ounces into units of dashes. The dash was defined in 2000 to be 1/8 teaspoon.

  • 15. Ounce-to-Mililiter - This equation converts input liquid ounces into units of πnches. The πnch was defined in 2000 to be 1/16 teaspoon.

  • 16. Ounce-to-Tablespoons - This equation converts input liquid ounces into tablespoons

  • 17. Ounce-to-Teaspoons - This equation converts input liquid ounces into teaspoons

  • 18. Ounce-to-Πnch - This equation converts input liquid ounces into units of πnches. The πnch was defined in 2000 to be 1/16 teaspoon.

  • 19. Pasta for Large Group - The Pasta for Large Group calculator computes the amount of ingredients needed to prepare pasta and sauce for a group.

  • 20. Pork Rib Calculator - The Pork Rib Calculator calculates the νmber of racks of ribs you need to cook in order to feed a certain amount of people.  Enter the νmber of people you need to serve and the serving size per person and you will get the amount of ribs you need to cook to meet that demand.

    There are several facts that you can assume when figuring out how many racks to cook.

  • 21. Potato Salad Calculator - The Potato Salad Calculator calculator computes pounds of potatoes you need and ingredients in order to prepare potato salad for a νmber of people.

  • 22. Poultry Brine - This equation calculates the amount of Kosher Salt and Sugar to put into your poultry brine based upon the amount of water needed.

  • 23. Pulled Pork Calculator - The Pulled Pork Calculator calculator computes amount of pork you need to cook in order to feed a certain νmber of people.  NEW: The calculator now also includes the amount of ADDITIONS that can be added to enhance the pulled pork.The average size of a good serving of pulled pork is about 5 to 10 ounces. 

  • 24. Pulled pork Calculator: Precooked - The Pre-Cooked Pulled Pork Calculator calculator computes amount of pre-cooked pork you need to cook in order to feed a certain νmber of people. 

  • 25. Rectangular Fryer Volume - The Rectangular Fryer Volume formula computes the volume (v) in fluid ounces that a rectangular fryer or other rectangular shaped pan can hold based on its dimensions.

  • 26. Rice-to-water ratio calculator - The Rice-to-water ratio calculator computes the amount of water required to cook a certain amount of rice.

  • 27. Spaghetti with Meatballs for Large Group - The Spaghetti with Meatballs for Large Group calculator computes the amount of ingredients needed to prepare spaghetti with meatballs for a group.

  • 28. Tablespoon-to-Dash - This equation converts input tablespoons into units of dashes

  • 29. Tablespoon-to-Smidgen - This equation converts input tablespoons into units of smidgen

  • 30. Tablespoon-to-Teaspoons - This equation converts input tablespoons into teaspoons

  • 31. Tablespoon-to-Πnch - This equation converts input tablespoons into units of πnches

  • 32. Teaspoon-to-Dash - This equation converts input teaspoons into units of dashes

  • 33. Teaspoon-to-mililiter - This equation converts input teaspoons into units of mililiters

  • 34. Teaspoon-to-Smidgen - This equation converts input teaspoons into units of smidgen

  • 35. Teaspoon-to-Πnch - This equation converts input teaspoons into units of πnches

  • 36. Turkey Deep Fry Time - The Turkey Deep FRY Time calculator computes the amount of time needed to deep fry a completely thawed turkey at 350o F based on its weight.

  • 37. Volume of a Turkey - The Volume of a Turkey calculator approximates the volume of a
    turkey based on its weight and the mean density of poultry.

  • 38. Volume Unit Conversion - The Volume Unit Conversion calculator converts a measurement of volume from one set of volume units to a list of other imperial and metric volume units including liters, cubic meters, cubic inches, feet, yards and miles, acre-feet, liters, gallons, cups, quarts, πnts, teaspoons, barrels and bushels.

  • 39. White Rice-to-Water Cooking Ratio - The White Rice-to-Water Ratio calculator computes the amount of water in which one cooks white rice.  

  • 40. Wild Rice-to-Water Cooking Ratio - The Wild Rice-to-Water Ratio calculator computes the amount of water in which one cooks wild rice. 

  • 41. Πnt-to-Cup - The Πnt-to-Cup equation converts input US Liquid Πnts into units of Cups. There is one cup in a 1/2 πnt.

  • 42. Πnt-to-Dash - The Πnt-to-Dash equation converts input US Liquid Πnts into units of dashes. The dash, though not a specific measurement, has been defined as 1/8 teaspoon.

  • 43. Πnt-to-Ounce - The Πnt-to-Ounce equation converts input US Liquid Πnts into units of Ounces. There is 1 ounce in each .0625 of a πnt.

  • 44. Πnt-to-Tablespoon - The Πnt-to-Tablespoon equation converts input US Liquid Πnts into units of Tablespoons. In 1 πnt, there are 32 tablespoons.

  • 45. Πnt-to-Teaspoon - The Πnt-to-Teaspoon equation converts input US Liquid Πnts into units of Teaspoons. In 1 Πnt, there are 96 teaspoons.

Constants (9)

Wiki Clips (1)

Ecology

Ecology is the branch of science that studies how organisms relate to each other and their environment. Ecology is an interdisciplinary field that includes biology and Earth science.

Calculators & Collections (2)

Equations (13)

  • 1. Coefficient of Community - The Coefficient of Community (Jaccard Coefficient) calculator computes the coefficient based on the νmber of species in two communities and the νmber of common species between the two communities.

  • 2. Coefficient of Community- 2 - The Coefficient of Community calculator computes the ratio of the νmber of species common to two community compared to the total species in both communities.

  • 3. How μch fertilizer? (15:2:8) - This equation computes the amount of 15:2:8 fertilizer -- or an equivalent fertilizer with the same concentration requirements -- that you would need to cover a desired area.

  • 4. How μch fertilizer? (general) - This equation computes the amount of 15:2:8 fertilizer -- or an equivalent fertilizer with the same concentration requirements -- that you would need to cover a desired area.

  • 5. Linear Coverage Index - The Linear Coverage Index calculator finds the linear coverage index by taking the sum of the intercept lengths for species i divided by the total length of the transects intercepted by the species.

  • 6. Linear Density Index - The Linear Density Index calculator computes the density of an individual species in a sample length. The equation takes the total νmber of individuals of a species collected divided by the total length of all transects sampled.

  • 7. Malthusian Growth Model - The Malthusian Growth Model calculator computes the estimated future size of a population (P) based on the current population (P0), a growth exponential factor (r) and the a period of time (t).

  • 8. Sedum Seed Per Acre - This Sedum Seed Per Acre equation is a basic coverage conversion equation used for estimating seed requirements for planting a large area or field with a [[Sedum>>url:http://en.wikipedia.org/wiki/Sedum||rel=_blank]] species. The resulting cultivated planting might be used for applications such as a [[green roof>>url:http://en.wikipedia.org/wiki/Greenroof||rel=_blank]]. This equation uses a standard assumption for the amount of seed required to cover a square meter of area:

  • 9. Seed Per Acre - This Seed Per Acre equation is a basic coverage conversion equation used for estimating seed requirements for planting a large area or field. The resulting cultivated planting might be used for applications such as a [[green roof>>url:http://en.wikipedia.org/wiki/Greenroof||rel=_blank]].

  • 10. Simple Matching Coefficient - The Simple Machine Coefficient calculator computes the coefficient for comparing the similarity and diversity of sample sets.

  • 11. Solar Panel Tilt Angle (2 Season adjustment) - This vCalc solar technology equation computes a tilt angle of the pointing face of a solar panel that optimizes solar collection by moving the orientation twice a year for a different tilt angle for Summer and Winter, depending on which hemisphere you are in.  The tilt angle is the angle from the vertical to the pointing vector of the face of the solar panel.

  • 12. The Sorensen Coefficient - The Sorensen Coefficient calculator computes a quotient of similarity for two communities based on the νmber of species in each community and the νmber of species in common.

  • 13. Water Volume Filtered by Oysters - The Water Volume Filtered by Oysters computes the approximate volume of water that can be filtered by population of oysters over a period of time. 

Constants (1)

Economics

Economics is the social science that seeks to describe the factors which determine the production, distribution and consumption of goods and services. Broadly, Economics is a study of man in the ordinary business of life i.e. It inquires how man gets his income and how he uses it.

Calculators & Collections (8)

Equations (55)

  • 1. Area over Time - The Area Covered, Produced or Consumed over Time calculator computes the area produced or consumed over a period of time based on the unit of are (aU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 2. Best Possible Days Sales Outstanding - The Best Possible Days Sales Outstanding calculator computes the Best Possible Days Sales Outstanding based on the Current Receivables, Days in Period and the Total Credit Sales.

  • 3. Black-Scholes - The Black-Scholes calculator computes the values for Call and Put Options based on the Black-Scholes equation.  

  • 4. Black-Scholes (CND) - This is the Black-Scholes CND subroutine and not intended for individual use.

  • 5. Capital Asset Pricing Model (CAPM) - The Capital Asset Pricing Model (CAPM) calculator computes a rate of return that combines both risk and time value of money.

  • 6. Consumer Price Index - The Consumer Price Index calculator computes the index based on the Cost of Current Year, and the Cost of the Base Year.

  • 7. Cost per Time - The Cost per Time calculator computes the total cost associated with a period of time based on cost per unit time.

  • 8. Cost to Drink Beer - The Cost to Drink Beer calculator computes the cost to drink beer per day, week, month and year based on the νmber of beers on drinks per day, beers in a pack (e.g., 6 pack) and the cost of a pack.

  • 9. Cost to Smoke - The Cost to Smoke calculator computes the cost to smoke per day, week, month and year based on the νmber of cigarettes smoked per day, cigarettes in a pack and the cost of a pack.

  • 10. Discounted Price with ADDITIONAL Discount - This Discounted Price calculator computes the sale price when TWO discounts are applied.  It answers the question, "How μch will I have to pay for this item that is on sale if I get an additional discount at checkout?

  • 11. Economic Profit - The Economic Profit calculator computes the Economic Profit by taking the total revenue and subtracting the total opportunity costs (not just the explicit costs, but also the implicit costs) of a venture to an investor. (see also Accounting Profit)  

  • 12. Economic Value Added - In corporate finance, Economic Value Added (EVA) is an estimate of a firms economic profit, or the value created in excess of the required return of the companys shareholders. Quite simply, EVA is the net profit less the opportunity cost of the firms capital. The idea is that value is created when the return on the firms economic capital employed exceeds the cost of that capital. This amount can be determined by making adjustments to GAAP accounting. There are potentially over 160 adjustments but in practice only several key ones are made, depending on the company and its industry. EVA is a service mark of Stern Value Management.

  • 13. Fisher Equation - The Fisher equation in financial mathematics and economics estimates the relationship between nominal and real interest rates inflation. It is named after Irving Fisher, who was famous for his works on the theory of interest. In finance, the Fisher equation is primarily used in YTM calculations of bonds or IRR calculations of investments. In economics, this equation is used to predict nominal and real interest rate behavior.

  • 14. Future Value - The Future Value calculator computes the future value of a fixed rate investment based on the annual interest rate and νmber of months compounded interest.   

  • 15. Gordon Growth Model - The Gordon Growth Model calculator computes the present value of a stock based on the dividend per share in year one (D1), the required growth rate (k), and the growth rates in dividends (g).

  • 16. Herfindahl-Hirschman Index - The Herfindahl-Hirschman Index (HHI) calculator computes the HHI market concentration index for a list of companies based on their market share.

  • 17. Income Elasticity of Demand - In economics, income elasticity of demand measures the responsiveness of the quantity demanded for a good or service to a change in the income of the people demanding the good, ceteris paribus. It is calculated as the ratio of the percentage change in quantity demanded to the percentage change in income. For example, if in response to a 10% increase in income, the quantity demanded for a good increased by 20%, the income elasticity of demand would be 20%/10% = 2.

  • 18. Inflation-Adjusted Return - The Inflation-adjusted Return calculator computes the return rate based on the Inflation Rate and the Investment Return.

  • 19. Length over Time - The Length Produced, Consumed or Covered over Time calculator computes the linear distance or length produced or consumed over a period of time based on the unit of length (lU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 20. Linear Demand Curve - The Linear Demand Curve calculator computes the Quantity of Demand (Q) based on the general effects on quantity of demand other than price (a), the slope of the effect of price changes on demand (b) and the price (P).

  • 21. Loan Payment - Fixed Interest - The Loan Payment calculator provides the periodic payment amount on a fixed interest loan.  

  • 22. Marginal Propensity to Save (MPS) - The marginal propensity to save (MPS) is the fraction of an increase in income that is not spent on an increase in consumption. That is, the marginal propensity to save is the proportion of each additional dollar of household income that is used for saving. It is the slope of the line plotting saving against income.[1] For example, if a household earns one extra dollar, and the marginal propensity to save is 0.35, then of that dollar, the household will spend 65 cents and save 35 cents. Likewise, it is the fractional decrease in saving that results from a decrease in income.

  • 23. Monthly Average Price per Ton - The Monthly Average Price calculator computes a monthly average price per ton based on four weekly observations.

  • 24. Monthly Payment - APR with fees - Annual Percentage Rate (APR) is the equivalent interest rate of a loan which includes all fees and interests paid.

  • 25. Net Worth - [] Net Worth is a way to measure progress, and to help you foresee trouble before you get buried too deep. Net worth is a concept applicable to individuals and businesses as a key measure of how μch an entity is worth. A consistent increase in net worth indicates good financial health; conversely, net worth may be depleted by annual operating losses or a substantial decrease in asset values relative to liabilities.

  • 26. Net Worth Calculator - The Net Worth Calculator computes the approximate net worth of an individual by summing up the typical personal assets and liabilities.

  • 27. Perfect Competition, Linear Equilibrium - Perfect competition is a term used to describe markets that are perfectly competitive. In markets that are perfectly competitive, all firms are price takers and the total long-run equilibrium economic profit is equal to zero.

  • 28. Personal Net Worth - The Personal Net Worth calculator computes the approximate net worth of an individual but summing up the typical personal assets and liabilities.

  • 29. Price per Mass vs Price per Volume and Density - The Price per Mass vs Price per Volume and Density calculator computes price per volume comparision of two objects where one objects volume is determined by its weight and the density of material.

  • 30. Price per Volume and Density vs Price per Mass - The Price per Volume and Density vs Price per Mass calculator computes price per mass or weight comparision of two objects where one objects weight (mass) is determined by its volume and the density of material.

  • 31. Sales Volume for Desired after tax Income - The Units Sales for Desired After Tax Profit calculator computes the νmber of units needed to be sold to achieve an after tax profit based on the fixed cost and the contribution margin per unit sale.

  • 32. Tariff Function - The Tariff Function calculator computes the change percent in tariffs.

  • 33. Three Party Cost Share by Length - The Three Party Cost Share by Length calculator computes the fair cost share over a distance for three parties where each party uses more or less than the others.

  • 34. Time estimating Repetitive Tasks - The learning curve captures the relationship between task performance and task repetition. In general. as output doubles the-unit production time will be reduced to some fixed percentage. the learning curve percentage or learning curve rate. This equation uses the learning curve to calculate a time estimation for completion of some νmber of repetitive tasks.

  • 35. Time for Area - The Time to Cover, Produce or Consume an Area calculator computes the amount of time needed to produce or consume and area based the rate (area per time unit) and the total area (a) of production or consumption.  The rate is the unit of area (aU) and the time to produce or consume the unit (dU) (e.g. 2.2 km2/ 5 years).

  • 36. Time for Length - The Time to Produce, Consume or Covere a Length calculator computes the the period (p) of production or consumption for a total linear distance or length produced or consumed, based on the total length (l) and a rate of processing.  The rate is based on a unit of length (lU) and the time to produce or consume the unit (dU) (e.g. 2.6 nautical miles ever 23.4 hours)

  • 37. Time for Units - The Time for Units calculator computes the period of time (T) needed to produce or consume a certain νmber units based on the unit time to produce or consume a designated νmber of units.

  • 38. Time for Volume - The Time for Volume calculator computes the period of time (P) needed to process a total volume (TV) of material at a volumetric rate.  The volumetric rate is a unit of volume (vU) and the time to produce or consume the unit (dU) (e.g. 5.6 liters every 22 minutes).

  • 39. Time for Weight or Mass - The Time to Produce or Consume a Weight or Mass calculator computes the period of time (p) needed to process a total mass or weight of material (MW) at a mass processing rate.  The processing rate is a unit of mass (vU) and the time to produce or consume the unit (dU) (e.g. 5.6 grams every 22 minutes).

  • 40. Total Cost of Units - The Total Cost of Units calculator computes the Total Cost (TC) units based on the cost of a single unit (UC) and the νmber of units purchased (X).

  • 41. Total Loan Cost - The Total Loan Cost equation computes the true cost for a mortgage or loan including credit card debt.  The loan amount plus the fees constitutes the initial principal of the loan.  Interest is accrued on both the loan amount, which is the cost negotiated for the house and the cost of the loan fees.

  • 42. Total Mortgage Cost - This equation calculates the true cost for a mortgage or loan. The loan amount plus the fees constitutes the initial principal of the loan. Interest is accrued on both the loan amount, which is the cost negotiated for the house and the cost of the loan fees.

  • 43. Total PITI Mortgage Cost - NEEDS TO ADD IN MORTGAGE INSURANCE < HOMEOWNERS INSURANCE< TAXES

  • 44. Total Weight from Pounds per Acre - The Total Weight from Pounds per Acre calculator computes the total weight for an area (A) based on a pounds per acre (PPA).

  • 45. Two Party Cost Share by Length - The Two Party Cost Share by Length calculator computes the fair cost share over a distance for two parties where one party uses more than the other.

  • 46. Units over Time - UPDATED!  The Units over Time calculator computes the νmber of units produced or consumed over a period of time based on the production or consumption rate and the duration of time.

  • 47. Units Sales for Desired pretax Profit - The Units Sales for Desired pretax Profit calculator computes the νmber of units needed to be sold to achieve a pretax profit based on the fixed cost and the contribution margin per unit sale.

  • 48. Used Car Price Comparison - The Used Car Price Comparison calculator evaluates the value difference between two used cars based on their mileage, price and mileage life expectancy.  Used Car Price Comparison calculator video.

  • 49. Utility Maximizing Consumption Bundle: Cobb-Douglas - The Cobb-Douglas Utility Maximizing Consumption Bundle calculator computes the x and y value for the maximized consumption based on the utility exponents for two goods, the price of the two goods and the consumer income level.

  • 50. Utility Maximizing Consumption Bundle: Perfect Complements - The Utility Maximizing Consumption Bundle: Perfect Complements calculator computes the x and y based on the Fixed Utility Coefficients for Goods X and Y, their prices and the consumers income level.

  • 51. Value Of A Dollar - The Value Of A Dollar calculator computes the inflation adjusted value of an amount of currency.

  • 52. Volume by Flow-rate and Time - The Total Volume calculator computes the total volume based on the volumetric flow rate (vR) and the period (p) of flow, production or consumption.

  • 53. Volume over Time - The Volume Produced, Filled or Consumed over Time calculator computes the volume of material produced or consumed over a period of time based on the unit of volume (vU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 54. Weight or Mass over Time - The Mass Production calculator computes the weight or mass (MW) of material produced or consumed over a period of time based on the unit of weight or mass (vU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 55. Μlti Party Cost Share by Three Lengths - The Μlti Party Cost Share by Three Lengths calculator computes the fair cost share over a distance for μltiple parties with three different length requirements.

Constants (108)

  • 1. Gold Reserve (ABSA NewGold Exchange Traded Fund) - The Gold Reserve for ABSA NewGold Exchange Traded Fund is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 2. Gold Reserve (Algeria) - The Gold Reserve for Algeria is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 3. Gold Reserve (Australia) - The Gold Reserve for Australia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons and includes the value of the gold in the current market based on a SPOT price of gold of $Spot Gold Price per gram per gram.

  • 4. Gold Reserve (Austria) - The Gold Reserve for Austria is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 5. Gold Reserve (Bank for International Settlements) - The Gold Reserve for the Bank of International Settlements is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 6. Gold Reserve (Belgium) - The Gold Reserve for Belgium is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 7. Gold Reserve (BullionVault) - The Gold Reserve for BullionVault is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 8. Gold Reserve (Central Fund of Canada) - The Gold Reserve for the Central Fund of Canada is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 9. Gold Reserve (Central GoldTrust) - The Gold Reserve for Central GoldTrust is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 10. Gold Reserve (COMEX Gold Trust) - The Gold Reserve for COMEX Gold Trust is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 11. Gold Reserve (Country Total) - Global Gold Reserve is the gold held by a national central bank for the top 50 countries.  A gold reserve is intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency.

  • 12. Gold Reserve (ETF Securities Gold Funds) - The Gold Reserve for ETF Securities Gold Funds is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 13. Gold Reserve (ETFS Physical Swiss Gold Shares) - The Gold Reserve for ETFS Physical Swiss Gold Shares is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 14. Gold Reserve (European Central Bank) - The Gold Reserve for the European Central Bank is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 15. Gold Reserve (France) - The Gold Reserve for France is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 16. Gold Reserve (Germany) - The Gold Reserve for Germany is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 17. Gold Reserve (GoldMoney) - The Gold Reserve for GoldMoney is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 18. Gold Reserve (Greece) - The Gold Reserve for Greece is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 19. Gold Reserve (India) - The Gold Reserve for India is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 20. Gold Reserve (Indonesia) - The Gold Reserve for Indonesia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 21. Gold Reserve (International Monetary Fund) - The Gold Reserve for the International Monetary Fund is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 22. Gold Reserve (Iraq) - The Gold Reserve for Iraq is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 23. Gold Reserve (Italy) - The Gold Reserve for Italy is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 24. Gold Reserve (Japan) - The Gold Reserve for Japan is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 25. Gold Reserve (Julius Baer Physical Gold Fund) - The Gold Reserve for Julius Baer Physical Gold Fund is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 26. Gold Reserve (Kazakhstan) - The Gold Reserve for Kazakhstan is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 27. Gold Reserve (Kuwait) - The Gold Reserve for Kuwait is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 28. Gold Reserve (Lebanon) - The Gold Reserve for Lebanon is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 29. Gold Reserve (Libya) - The Gold Reserve for Libya is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 30. Gold Reserve (Mexico) - The Gold Reserve for Mexico is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 31. Gold Reserve (Netherlands) - The Gold Reserve for the Netherlands is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 32. Gold Reserve (Poland) - The Gold Reserve for Poland is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 33. Gold Reserve (Portugal) - The Gold Reserve for Portugal is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 34. Gold Reserve (Republic of Χna) - The Gold Reserve for the Republic of Χna (Taiwan) is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 35. Gold Reserve (Romania) - The Gold Reserve for Romania is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 36. Gold Reserve (Russia) - The Gold Reserve for Russia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 37. Gold Reserve (Saudi Arabia) - The Gold Reserve for Saudi Arabia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 38. Gold Reserve (Singapore) - The Gold Reserve for Singapore is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 39. Gold Reserve (South Africa) - The Gold Reserve for South Africa is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 40. Gold Reserve (South Korea) - The Gold Reserve for South Korea is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 41. Gold Reserve (Spain) - The Gold Reserve for Spain is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 42. Gold Reserve (SPDR Gold Shares) - The Gold Reserve for SPDR Gold Shares is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 43. Gold Reserve (Sprott Physical Gold Trust) - The Gold Reserve for Sprott Physical Gold Trust is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 44. Gold Reserve (Sweden) - The Gold Reserve for Sweden is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 45. Gold Reserve (Switzerland) - The Gold Reserve for Switzerland is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 46. Gold Reserve (Thailand) - The Gold Reserve for Thailand is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 47. Gold Reserve (Total Privately Held) - Gold Reserve is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 48. Gold Reserve (Turkey) - The Gold Reserve for Turkey is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 49. Gold Reserve (United Kingdom) - The Gold Reserve for the United Kingdom is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 50. Gold Reserve (United States) - The Gold Reserve for the United States is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 51. Gold Reserve (Venezuela) - The Gold Reserve for Venezuela is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 52. Gold Reserve (ZKB Physical Gold) - The Gold Reserve for ZKB Physical Gold is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 53. Gold Reserve (Φlippines) - The Gold Reserve for the Φlippines is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 54. Gold Reserve (Χna) - The Gold Reserve for Χna is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 55. Gold Reserve Value (ABSA NewGold Exchange Traded Fund) - The Gold Reserve Value for ABSA NewGold Exchange Traded Fund is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 56. Gold Reserve Value (Algeria) - The Gold Reserve Value for Algeria is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 57. Gold Reserve Value (Australia) - The Gold Reserve Value for Australia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, d/t, is in US dollars.

  • 58. Gold Reserve Value (Austria) - The Gold Reserve Value for Austria is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 59. Gold Reserve Value (Bank for International Settlements) - The Gold Reserve Value for the Bank of International Settlements is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 60. Gold Reserve Value (Belgium) - The Gold Reserve Value for Belgium is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 61. Gold Reserve Value (BullionVault) - The Gold Reserve Value for BullionVault is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 62. Gold Reserve Value (Central Fund of Canada) - The Gold Reserve Value for the Central Fund of Canada is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 63. Gold Reserve Value (Central GoldTrust) - The Gold Reserve Value for Central GoldTrust is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 64. Gold Reserve Value (COMEX Gold Trust) - The Gold Reserve Value for COMEX Gold Trust is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 65. Gold Reserve Value (Country Total) - Gold Reserve is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 66. Gold Reserve Value (ETF Securities Gold Funds) - The Gold Reserve Value for ETF Securities Gold Funds is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 67. Gold Reserve Value (ETFS Physical Swiss Gold Shares) - The Gold Reserve Value for ETFS Physical Swiss Gold Shares is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 68. Gold Reserve Value (European Central Bank) - The Gold Reserve Value for European Central Bank is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 69. Gold Reserve Value (France) - The Gold Reserve Value for France is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 70. Gold Reserve Value (Germany) - The Gold Reserve Value for Germany is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 71. Gold Reserve Value (GoldMoney) - The Gold Reserve Value for GoldMoney is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 72. Gold Reserve Value (Greece) - The Gold Reserve Value for Greece is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 73. Gold Reserve Value (India) - The Gold Reserve Value for India is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 74. Gold Reserve Value (Indonesia) - The Gold Reserve Value for Indonesia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 75. Gold Reserve Value (International Monetary Fund) - The Gold Reserve Value for the International Monetary Fund is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 76. Gold Reserve Value (Iraq) - The Gold Reserve Value for Iraq is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, (% style=line-height: 1.4em; %)is in US dollars.

  • 77. Gold Reserve Value (Italy) - The Gold Reserve Value for Italy is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 78. Gold Reserve Value (Japan) - The Gold Reserve Value for Japan is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 79. Gold Reserve Value (Julius Baer Physical Gold Fund) - The Gold Reserve Value for the Julius Baer Physical Gold Fund is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 80. Gold Reserve Value (Kazakhstan) - The Gold Reserve Value for Kazakhstan is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 81. Gold Reserve Value (Kuwait) - The Gold Reserve Value for Kuwait is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 82. Gold Reserve Value (Lebanon) - The Gold Reserve Value for Lebanon is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 83. Gold Reserve Value (Libya) - The Gold Reserve Value for Libya is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 84. Gold Reserve Value (Mexico) - The Gold Reserve Value for Mexico is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 85. Gold Reserve Value (Netherlands) - The Gold Reserve Value for the Netherlands is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 86. Gold Reserve Value (Poland) - The Gold Reserve Value for Poland is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 87. Gold Reserve Value (Portugal) - The Gold Reserve Value for Portugal is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 88. Gold Reserve Value (Privately Held) - Gold Reserve is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in metric tons, and is {{constantsolver/}}.

  • 89. Gold Reserve Value (Republic of Χna) - The Gold Reserve Value for the Republic of Χna (Taiwan) is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 90. Gold Reserve Value (Romania) - The Gold Reserve Value for Romania is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 91. Gold Reserve Value (Russia) - The Gold Reserve Value for Russia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 92. Gold Reserve Value (Saudi Arabia) - The Gold Reserve Value for Saudi Arabia is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 93. Gold Reserve Value (Singapore) - The Gold Reserve Value for Singapore is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 94. Gold Reserve Value (South Africa) - The Gold Reserve Value for South Africa is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 95. Gold Reserve Value (South Korea) - The Gold Reserve Value for South Korea is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 96. Gold Reserve Value (Spain) - The Gold Reserve Value for Spain is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 97. Gold Reserve Value (SPDR Gold Shares) - The Gold Reserve Value for SPDR Gold Shares is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 98. Gold Reserve Value (Sprott Physical Gold Trust) - The Gold Reserve Value for the Sprott Physical Gold Trust is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 99. Gold Reserve Value (Sweden) - The Gold Reserve Value for Sweden is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 100. Gold Reserve Value (Switzerland) - The Gold Reserve Value for Switzerland is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 101. Gold Reserve Value (Thailand) - The Gold Reserve Value for Thailand is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 102. Gold Reserve Value (Turkey) - The Gold Reserve Value for Turkey is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 103. Gold Reserve Value (United Kingdom) - The Gold Reserve Value for the United Kingdom is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 104. Gold Reserve Value (United States) - The Gold Reserve Value for the United States is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 105. Gold Reserve Value (Venezuela) - The Gold Reserve Value for Venezuela is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 106. Gold Reserve Value (ZKB Physical Gold) - The Gold Reserve Value for ZKB Physical Gold is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value is in US dollars.

  • 107. Gold Reserve Value (Φlippines) - The Gold Reserve Value for the Φlippines is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars.

  • 108. Gold Reserve Value (Χna) - The Gold Reserve Value for Χna is the gold held by a national central bank, intended as a store of value and as a guarantee to redeem promises to pay depositors, note holders (e.g. paper money), or trading peers, or to secure a currency. This value, {{constantsolver/}}, is in US dollars. However, this can be automatically converted to other currencies via the pull-down menu.

Wiki Clips (9)

Electrical

Electrical or Electric is a term that means relating to electricity i.e. the set of physical phenomena associated with the presence and flow of electric charge. The calculators and data items in this category are provided to assist those working on electrical system such as the wiring of a home. For more scientific information, go to the category of Electrical Engineering or Electricity

Calculators & Collections (11)

Equations (65)

  • 1. 20A Duplex Outlet Installation Time - The 20A Duplex Outlet Installation Time calculator estimates the amount of time needed to install 20A Duplex Outlets based on the νmber of outlets (n) and the Level of Difficulty (lvl).

  • 2. 20A SP Switch Installation Time - The Time to Install 20A SP Switches calculator estimates the amount of time needed to install 20A SP Switches based on the νmber of switches (n) and the Level of Difficulty (lvl).

  • 3. AC to DC Converter - The AC to DC Converter calculator computes the Direct Current (DC) voltage equivalent to Alternating Current (AC).

  • 4. AC Voltage at a Time - The AC Voltage at a Time function computes the voltage at a specified time for a standard voltage (a sinusoidal waveform).

  • 5. AWG Lookup - The AWG Table Lookup function performs a look-up in a data set called AWG Wire Gauge which contains American Wire Gauge (AWG) characteristics of standard conductors of gauge 0 through 40. 

  • 6. Battery Backup Duration - The Battery Backup Duration calculator computes the duration of time that one or more batteries can provide constant power to a νmber of electrical appliances.

  • 7. Box Diagonal - The Box Diagonal calculator computes the length of diagonal of a box based on the vertical height, width and the length.  

  • 8. Busbar Cross-section Area - The Busbar Cross-section Area calculator computes the cross-section area required to carry an amount of current a busbar based on the current density of the busbar material.

  • 9. Busbar Current - The Busbar Current calculator computes the amount of current a busbar can carry based on the cross-section area and the current density of the busbar material.

  • 10. Ceiling Fan Load - The Ceiling Fan Load calculator computes circuit current requirement for one or more ceiling fans based on the power and voltage of the ceiling fans and the νmber of fans.

  • 11. Christmas Tree Lights Calc - The Christmas Tree Lights Calc estimates the νmber of lights needed for a Christmas tree based on the trees size and your desired spacing (density).

  • 12. Circular mils and Voltage drop - The Circular Mils and Voltage Drop calculator computes the reduction in volts over a run of wire (line/circuit) based on the length of the run, composition and size of the wire, the current, temperature range and phase.

  • 13. Cost of Electricity - The Cost of Electricity calculator computes the cost of consuming an amount of power over a period of time at a given utility cost.

  • 14. Cross-section Area Pouillets Law - The Pouillets Law Cross-section Area calculator use Pouilets Law (R = ρ • L/A) to compute the cross-section area required to achieve a resistance of an object with uniform cross-section and materials based on resistivity of material and length of the resistive material.

  • 15. Current from Potential and Power - The Current from Potential and Power calculator computes the current based on Ohms Law using Power (P) and Potential (V).

  • 16. Current from Potential and Resistance - The Current from Potential and Resistance calculator computes the current based on Ohms Law using electrical Resistance (R) and Potential (V).

  • 17. Current from Power and Resistance - The Electrical Current calculator computes the current based on Ohms Law using Power (P) and Resistance (R).

  • 18. dBm from Voltage and Impedance - The dBm from Voltage and Impedance calculator compute the decibel milliwatts from the voltage and impedance.

  • 19. dBuV/m-to-V/m - The dBμV/m-to-V/m calculator converts decibel microvolts per meter to volts per meter.

  • 20. DC Resistance of a Wire - The DC Resistance of a Wire calculator computes the DC resistance of a wire of length lp  whose cross sectional area (bare wire) is Aw.

  • 21. DC to AC Converter - - The DC to AC Converter calculator computes the approximate voltage of Alternating Current (AC) from the voltage of Direct Current (DC).  WARNING: This calculator is NOT VERIFIED for accuracy.

  • 22. Diameter of AWG Wire - The Diameter of AWG Wire function returns the American Wire Gauge (AWG) diameter of wire based on the gauge.

  • 23. Diameter to Circular Mils - The Diameter to Circular Mils calculator computes the circular mils associated with a diameter.

  • 24. Electricity Consumption - The Electricity Consumption calculator computes the power consumed over a period of time in kilowatt hours.

  • 25. EMT Conduit Installation Length - The EMT Conduit Installation Length calculator estimates the length of Electrical Metallic Tubing (EMT Conduit) that can be installed based on the Level of Difficulty (lvl), the size (S) of the conduit and the amount of time allocated (t).

  • 26. EMT Conduit Installation Time - The Time to Install EMT Conduit calculator estimates the amount of time needed to install Electrical Metallic Tubing (EMT Conduit) based on the length of the conduit (L), the Level of Difficulty (lvl) and the size (S) of the conduit.

  • 27. EMT Conduit Weight - The Weight of Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit (S) and the length (L).

  • 28. Extension Cord Max Wattage and Amps - The Extension Cord Max Wattage and Amps function outputs a Wattage and Amperage that may be supported by an extension cord based on input selection of wire gauge and length of extension cord.  The output Wattage should be the max power your  devices draws when attached to the chord of the selected length and gauge. 

  • 29. Gauge Factor - The Gauge Factor calculator computes the change in electrical resistance based on the strain on a conductive element.

  • 30. GRC Conduit Installation Length - The GRC Conduit Installation Length calculator estimates the amount of length of installed Galvanized Rigid Conduit (GRC) based on the time (t) allocated to installation, the Level of Difficulty (lvl) and the size (S) of the conduit.

  • 31. GRC Conduit Installation Time - The Time to Install GRC Conduit calculator estimates the amount of time needed to install Rigid Galvanized Conduit (GRC ) based on the length of the conduit (L), the Level of Difficulty (lvl) and the size (S) of the conduit.

  • 32. GRC Conduit Weight - The Weight GRC Conduit calculator estimates the total weight of Galvanized Rigid Conduit (GRC) based on the size (S) of the conduit and the length (L).

  • 33. Lamp Lay-In Fixture Installation Time - The Time to Install Lamp Lay-in Fixtures calculator estimates the amount of time needed to install lamp lay-in fixtures based on the νmber of fixtures (n), the Level of Difficulty (lvl) and the size (S) of the fixtures.

  • 34. MC Cable Installation Length - The Length of Installed Metal Clad Cable based on Time calculator estimates the length of metal clad cable installed given an allocated amount of time (t) based on the Level of Difficulty and the size of the Metal Clad Cable.

  • 35. MC Cable Installation Time - The Time to Install Metal Clad Cable calculator estimates the amount of time needed to install metal clad cable based on the length of the cable (L), the Level of Difficulty (lvl) and the size (S) of the cable.

  • 36. MC Cable Weight - The Metal Clad Cable Weight calculator estimates the total weight of metal clad cable based on the size/type (MC) of the cable and the length (L).

  • 37. Outlets and Wiring for Room - The Outlets and Wiring for Room calculator computes the νmber of outlets (boxes) and length of wire to connect them in a room based on the room dimensions and the outlet spacing.. 

  • 38. Power Consumption - The Power Consumption calculator computes power consumed over a period of time based on base power unit and time period and the duration of consumption .

  • 39. Power from Current and Voltage - The Electrical Power calculator computes the power based on Ohms Law using electrical potential or voltage (V) and current (I).

  • 40. Power from Resistance and Current - The Electrical Power calculator computes the power based on Ohms Law using electrical resistance (R) and current (I).

  • 41. Power from Voltage and Resistance - The Electrical Power calculator computes the power based on Ohms Law using electrical potential or voltage (V) and resistance (R).

  • 42. PVC 40 Conduit Installation Length - The PVC 40 Conduit Installation Length calculator estimates the length of PVC Schedule 40 Conduit that can be installed based on the Level of Difficulty (lvl), the size (S) of the conduit and the amount of time allocated (t).

  • 43. PVC 40 Conduit Installation Time - The Time to Install PVC 40 Conduit calculator estimates the amount of time needed to install PVC 40 Conduit based on the length of the conduit (L), the Level of Difficulty (lvl) and the size (S) of the conduit.

  • 44. PVC 40 Conduit Weight - The Weight PVC Schedule 40 Conduit calculator estimates the total weight of Schedule 40 PVC conduit and πpes based on the size (S) of the conduit or πpe, the length (L) and whether it is PVC or CPVC.

  • 45. Resistance from Potential and Current - The Resistance from Potential and Current calculator computes the resistance based on Ohms Law using electrical potential or voltage (V) and current (I).

  • 46. Resistance from Power and Current - The Resistance from Power and Current calculator computes the resistance based on Ohms Law using electrical power (P) and current (I).

  • 47. Resistance from Power and Potential - The Resistance from Power and Potential calculator computes the resistance based on Ohms Law using electrical power (P) and potential or voltage (V).

  • 48. RMS Voltage - RMS Voltage

  • 49. Rolling Offset - The Rolling Offset calculator computes the run (R) and travel (T) lengths of a rolling offset based on the vertical (V) and horizontal (H) offsets and the fitting angles (fA) of the elbow fittings.   This is also known as πpe rolling.  MOU3k>Rolling Offset VIDEO

  • 50. Surge Impedance Loading - The Surge Impedance Loading calculator computes the power loading of a transmission line based on the line to line voltage and the surge impedance.

  • 51. Voltage Drop - The Voltage Drop calculator computes the reduction in volts over a run of wire (line/circuit) based on the length of the run, composition and size of the wire, the current, temperature range and phase.

  • 52. Voltage from Current and Power - The Voltage from Current and Power calculator computes the Voltage (V) based on Ohms Law using Power (P) and Current (I).

  • 53. Voltage from Current and Resistance - The Voltage from Current and Resistance calculator computes the Voltage (V) based on Ohms Law using the Current (I) and the Resistance (R).

  • 54. Voltage from Power and Resistance - The Voltage from Power and Resistance calculator computes the Voltage (V) based on Ohms Law using Power (P) and Resistance (R).

  • 55. Weight of Four Inch EMT Conduit - The Weight of Four Inch (4") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 56. Weight of Half Inch ( .5 in) EMT Conduit - The Weight of Half Inch (1/2") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 57. Weight of Inch and a Half (1.5") EMT Conduit - The Weight of One Inch and a Half (1 1/2") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 58. Weight of Inch and a Quarter (1.25") EMT Conduit - The Weight of One Inch and a Quarter (1 1/4") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 59. Weight of one inch (1") EMT Conduit - The Weight of One Inch (1") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 60. Weight of Three and a Half Inch (3.5 in) EMT Conduit - The Weight of Three and a Half Inch (3 1/2") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 61. Weight of Three Inch (3") EMT Conduit - The Weight of Three Inch (3") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 62. Weight of Three Quarter inch ( .75 in) EMT Conduit - The Weight of Three Quarter Inch (3/4") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 63. Weight of Two and a Half Inch (2.5") EMT Conduit - The Weight of Two and a Half Inch (2 1/2") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 64. Weight of Two Inch (2") EMT Conduit - The Weight of Two Inch (2") Electrical Metallic Tubing (EMT) calculator estimates the total weight of Electrical Metallic Tubing (EMT Conduit) based on the size of the conduit and the length (L).

  • 65. Wire Gauge for Safe Voltage Drop - The Wire Gauge for Safe Voltage Drop calculator computes the lightest (highest νmber) gauge of wire for a circuit to NOT drop below a percent threshold due to line-loss over a circuit.  

Wiki Clips (12)

Electrical Engineering

Electrical Engineering is a sub-discipline of engineering that may include electronic engineering and which involves the application of electricity, electronics, and electromagnetism. Included within electrical engineering are the sub-disciplines of electronics, computers, power engineering, telecommunications, control systems, RF engineering, and signal processing.

Calculators & Collections (8)

Equations (66)

  • 1. AC to DC Converter - The AC to DC Converter calculator computes the Direct Current (DC) voltage equivalent to Alternating Current (AC).

  • 2. Attenuation α - Sallen-Key Filter - The Attenuation α - Sallen-Key Filter calculator computes the filter based on two resistance measurements and the the capacitance.

  • 3. Average Power - The Average Power calculator computes average energy required over a period of time to perform an amount of work

  • 4. Capacitance of a Cylindrical Capacitor - The Capacitance of a Cylindrical Capacitor calculator computes the capacitance of a capacitor that has two coaxial cylindrical shells.

  • 5. Capacitance of an Isolated Spherical Shell - The Capacitance of a Spherical Shell calculator computes the capacitance of a single spherical shell.

  • 6. Capacitance of Two Concentric Spherical Shells - The Capacitance of a Two Concentric Spherical Shells calculator computes the capacitance of concentric spherical shells.

  • 7. Capacitance Unit Conversion - The Capacitance Unit Conversion function converts a measurement of electric capacitance from one of vCalcs standard units to an equivalent set of compatible units.

  • 8. Charge per unit length - The Charge per unit Length calculator computes teh chart per unit length based on the charge and the unit length:

  • 9. Colpitts Oscillator (Frequency) - The Frequency of a Colpitts Oscillator calculator compute the frequency of a Colpitts Oscillator (ƒ0) based on the inductance and the capacitance of two capacitors.

  • 10. Cost of Electricity - The Cost of Electricity calculator computes the cost of consuming an amount of power over a period of time at a given utility cost.

  • 11. Cross-section Area Pouillets Law - The Pouillets Law Cross-section Area calculator use Pouilets Law (R = ρ • L/A) to compute the cross-section area required to achieve a resistance of an object with uniform cross-section and materials based on resistivity of material and length of the resistive material.

  • 12. Current from Potential and Power - The Current from Potential and Power calculator computes the current based on Ohms Law using Power (P) and Potential (V).

  • 13. Current from Potential and Resistance - The Current from Potential and Resistance calculator computes the current based on Ohms Law using electrical Resistance (R) and Potential (V).

  • 14. Current from Power and Resistance - The Electrical Current calculator computes the current based on Ohms Law using Power (P) and Resistance (R).

  • 15. Damping factor(Series RLC circuit) - The Dampening Factor for an RLC circuit in Series calculator computes the dampening factor based on the resistance, inductor and capacitance.

  • 16. dBm from Voltage and Impedance - The dBm from Voltage and Impedance calculator compute the decibel milliwatts from the voltage and impedance.

  • 17. dBuV/m-to-V/m - The dBμV/m-to-V/m calculator converts decibel microvolts per meter to volts per meter.

  • 18. DC Resistance of a Wire - The DC Resistance of a Wire calculator computes the DC resistance of a wire of length lp  whose cross sectional area (bare wire) is Aw.

  • 19. DC to AC Converter - - The DC to AC Converter calculator computes the approximate voltage of Alternating Current (AC) from the voltage of Direct Current (DC).  WARNING: This calculator is NOT VERIFIED for accuracy.

  • 20. Dipole Moment - This Dipole Moment equation is used to compute the Dipole Moment(p) in an electric field with a uniform charge(q) and distance(d)

  • 21. Drift Velocity - The Drift Velocity is the flow velocity that a particle, such as an electron, attains in a material due to an electric field. The following equation is used to calculate the drift velocity: μ=I/(nQA), where: - * μ = drift velocity - * I = flow of current - * n= νmber of electrons - * Q = charge of electrons - * A = cross section of area of wire

  • 22. Electricity Consumption - The Electricity Consumption calculator computes the power consumed over a period of time in kilowatt hours.

  • 23. Electrostatic Pressure - The Electrostatic Pressure calculator computes the electrostatic pressure based on the electric field (E) and the the electric constant.

  • 24. Flux Density - The Flux Density calculator computes the magnetic flux density, B, from inputs of flux (Φ) in units of Webers and core area, (Ac).

  • 25. Inductance for a Solenoid - The Inductance for a Solenoid calculator computes the inductance based on the relative permiability, cross-section area, νmber of coils on the bobbin and the length of the coil.

  • 26. Peak Voltage - Peak Voltage

  • 27. Phase Angle (AC) - Phase Angle (AC)

  • 28. Power Factor - This equation computes the Power Factor, cos(φ).

  • 29. Power from Current and Voltage - The Electrical Power calculator computes the power based on Ohms Law using electrical potential or voltage (V) and current (I).

  • 30. Power from Resistance and Current - The Electrical Power calculator computes the power based on Ohms Law using electrical resistance (R) and current (I).

  • 31. Power from Voltage and Resistance - The Electrical Power calculator computes the power based on Ohms Law using electrical potential or voltage (V) and resistance (R).

  • 32. Power Loss Due to Wire Resistance - The Power Loss Due to Wire Resistance computes the power loss due to the resistance (R) of a wire.

  • 33. Q Factor (R&C) - Sallen-Key Filter - The Sallen-Key Q Factor (R&C)  calculator computes the factor based on the resistances and capacitances. 

  • 34. Q Factor(ω0, α) - Sallen-Key filter - The Sallen-Key Factor (ω0 , α)  calculator computes the factor based on the angular velocity and a coefficient.

  • 35. Resistance (Pouillets Law) - The Pouillets Law Resistance calculator use Pouilets Law (R = ρ • L/A) to compute resistance of an object with uniform cross-section and materials based on resistivity of material, length and cross-sectional area of the resistive material.

  • 36. Resistance Choice based on Q, R2, C1, C2 - This equation computes the Resistance R1 (see diagram) of the unity gain low pass filter implementation of the Sallen-Key topology. This electronic filter is a special case of a second-order unity gain filter version of the voltage-controlled voltage-source (VCVS) topology.

  • 37. Resistance from Potential and Current - The Resistance from Potential and Current calculator computes the resistance based on Ohms Law using electrical potential or voltage (V) and current (I).

  • 38. Resistance from Power and Current - The Resistance from Power and Current calculator computes the resistance based on Ohms Law using electrical power (P) and current (I).

  • 39. Resistance from Power and Potential - The Resistance from Power and Potential calculator computes the resistance based on Ohms Law using electrical power (P) and potential or voltage (V).

  • 40. Resistive Voltage Divider

  • 41. Resistor Color Code Calculator - This is design to work on 4 band color codes, It outputs the value in a formatted string so it is not useful combined with other Equations, but it does provide a nice answer.

  • 42. RF power from voltage & impedance - The RF Power from voltage and impedance calculator compute the RF Power from the voltage and impedance.

  • 43. RMS Voltage - RMS Voltage

  • 44. Sallen-Key Unity Gain Low Pass Filter - Transfer Function - The Sallen-Key Unity Gain Low Pass Filter - Transfer Function calculator computes the transfer function H(s) for a unity gain low pass filter implementation of the Sallen-Key topology. 

  • 45. Sallen-Key Unity Gain Low Pass Filter - Transfer Function (f0) - This equation computes the transfer function H(s) for a unity gain low pass filter implementation of the Sallen-Key topology.  This electronic filter is a special case of a second-order unity gain filter version of the voltage-controlled voltage-source (VCVS) topology.

  • 46. Sallen-Key Unity Gain Low Pass Filter - Transfer Function (R&C) - This equation computes the transfer function H(s) for a unity gain low pass filter implementation of the Sallen-Key topology.  This electronic filter is a special case of a second-order unity gain filter version of the voltage-controlled voltage-source (VCVS) topology.

  • 47. Signal-to-Noise Ratio(dB) - The Signal-to-Noise Ratio (SNR) calculator computes a relative measure of the strength of the received signal (i.e., the information being transmitted) compared to the noise. 

  • 48. Surge Impedance - The Surge Impedance is a surge of energy on a finite transmission line. The following equation is used to calculate surge impedance: Z0=sqrt(L/C), where: - * L = inductance - * C = Capacitance

  • 49. Surge Impedance Loading - The Surge Impedance Loading calculator computes the power loading of a transmission line based on the line to line voltage and the surge impedance.

  • 50. Target Radar Cross Section (RCS) - The Target Radar Cross Section calculator computes the cross-section of a object for a Synthetic Aperture Radar (SAR) based on the refectivity, azimuth, slant range, grazing angle, radar frequency, reference frequency and the frequency dependence.

  • 51. Time Averaged Power (V, I) - Time Averaged Power (V,I)

  • 52. Time Averaged Power (V,R) - The Time Averaged Power (V,R) calculator compute the power based on the RMS voltage and the resistance.

  • 53. Transformer Areas - The Transformer Areas calculator computes the area of the Transformer Core or the Window Area (see diagram) based on their length and width.

  • 54. Transformer Core Geometry - Kg - The Transformer Core Geometry calculator computes the core geometry (Kg), a characteristic attribute of a transformer design. The constant Kg is a measure of the core size and is used to design transformers and inductors.

  • 55. Transformer Design - Core Size - This Equation calculates the Core Geometry, a commonly used constant that characterizes a transformer. The core geometry would often be used in the design of transformers. The core geometry is expressed in units of cm^5.

  • 56. Transformer Design - Inductance for coiled bobbin - The bobbin in transformer terminology is the spindle shape on which a coil of wire is wound. This equation computes the inductance of a coil of wire on a bobbin.

  • 57. Transformer Window Utilization Factor Ku - This Transformer Window Utilization Factor (Ku) equation computes the ratio of the total amount of copper that appears in the window of a transformer to the total area of the transformer window. This equation for Ku basically measures the amount of available space in the window that contains or utilizes copper. It estimates the amount of space in the window that is used by insulation and buy air between the wire windings and it does not include this space in the calculation of Ku.

  • 58. Undampened Natural Angular Frequency (ω0) - This equation computes the angular frequency term (ω0) of the transfer function for a unity gain low pass filter implementation of the Sallen-Key topology. This electronic filter is a special case of a second-order unity gain filter version of the voltage-controlled voltage-source (VCVS) topology.

  • 59. Voltage from Current and Power - The Voltage from Current and Power calculator computes the Voltage (V) based on Ohms Law using Power (P) and Current (I).

  • 60. Voltage from Current and Resistance - The Voltage from Current and Resistance calculator computes the Voltage (V) based on Ohms Law using the Current (I) and the Resistance (R).

  • 61. Voltage from dBm - The  Voltage from dBm calculator computes the amount of voltage produced based on the dBm power level.

  • 62. Voltage from Power and Resistance - The Voltage from Power and Resistance calculator computes the Voltage (V) based on Ohms Law using Power (P) and Resistance (R).

  • 63. Voltage from RF power - The Voltage from RF Power and Impedance calculator computes the volts from RF power based on the impedance.

  • 64. Voltage using Inductance - The Voltage using Inductance equation computes the Voltage of a system that has a magnetic field that is present due to a moving current. 

  • 65. Winding Porosity - This equation computes the winding porosity, which we define as the ratio of cross-sectional areas. That is the ratio of the product of the νmber of turns and the diameter of the wire to the cross-sectional area of the layer of the winding.

  • 66. Zener Voltage Regulator - The zener diode can act as a voltage regulator and hold a parallel voltage constant while there may be variations in the load current. Zener diodes are semiconductor diodes which have been manufactured to have their reverse breakdown occur at a specific, well-defined voltage (its “Zener voltage”), and that are designed such that they can be operated continuously in that breakdown mode.

Constants (3)

  • 1. Bohr magneton with Units - The Bohr Magneton is 9.274009994 x 10-24 J·T^-1

  • 2. Coulombs Constant - Coulombs Constant (ke) is 8987551787.3682 m/F

  • 3. Electric Constant - The Electric constant is an ideal, (baseline) physical constant, which is the value of the absolute dielectric permittivity of classical vacuum. It is the capability of the vacuum to permit electric field lines. This constant relates the units for electric charge to mechanical quantities such as length and force. Its value is ε0=8.854187817*10-12 F/m. - It is also called the vacuum permittivity or permittivity of free space.

Engineering

Engineering is the creative application of scientific, economic, social, mathematical, and practical knowledge in order to invent, design, build, maintain, research, and improve structures, machines, devices, systems, materials and processes.

Calculators & Collections (9)

  • 1. Basic Stress and Strain Calculator - The stress and strain calculator calculates the elasticity of objects and material brought about by stress and strain forces.

  • 2. Cone Calc - The cone calculator contains equations related to objects shaped like a right geometric circular cone including equations for volume, surface area, mass and moments of inertia.

  • 3. Engineering: Stress & Strain - vCalcs Stress & Strain calculator provides fundamental definitions of stress and strain and associated deformations.{{footnote}}Fundamentals of Engineering. 8th edition, 2nd Revision. National Council of Examiners for Engineering and Surveying (NCEES) - 2001. ISBN 978-1-932613-59-9. pg 33{{/footnote}}

  • 4. Mass of Shapes and Containers - The Mass of Shapes and Containers calculator contains the mass / weight equations for a variety of geometric shapes and provides the mean density for a large νmber of substances.   

  • 5. Object Weight - The Object Weight calculator contains the mass / weight equations for a variety of geometric shapes and provides the mean density for a large νmber of substances.   By combining these you can estimate the mass or weight of an object.  More simply stated, if you know the shape of an object, its size (dimensions) and what its made of, you should be able to make a good estimate of its mass or weight.  This calculator helps you do precisely that.

  • 6. Orbit Perturbations - This calculator provider the ability to compute orbit perturbation estimations cause by various factors affecting a satellite orbit, like the gravitational effect of the Sun and the Moon or the affect due to the oblateness of the Earth.

  • 7. Pyramid Calc - The Pyramid Calculator contains equations related to objects shaped like a geometric pyramid. This includes equations for volume and mass. Pyramids can have bases of triangles, squared and polygons. The pyramids can be full pyramids or frustums. A frustum is made by parallel planes slicing through an object. The equations in this calculator include formula for the volume and mass of pyramid shaped objects.

  • 8. Synthetic Aperture Radar (SAR) Calculator - This calculator solves for the Signal-to-Noise ratio (SNR_"image") of a Synthetic Aperture Radar.  Two versions of the Radar Equation are presented, along with auxiliary equations to help the calculation of different parameters.  This page heavily draws on Sandia National Laboratoriess Performance Limits for Synthetic Aperture Radar– second edition, which only considers the monostatic case (where the same antenna is used for TX and RX operations).  The findings were also checked against Skolniks Radar Handbook.

  • 9. Weight and Volume Calc - The Weight and Volume Calculator contains volume and mass / weight equations for a variety of geometric shapes and provides the mean density for a large νmber of substances.   

Equations (34)

  • 1. Angular Frequency - The Angular Frequency calculator computes the angular frequency based on the frequency.

  • 2. Atmospheric Loss (Radar) - This equation provides atmospheric lossfootnote1>1 used in radar SNR.  This equation is most helpful in the context of calculating the Signal-to-Noise of a Synthetic Aperture Radar.

  • 3. Average Power (Radar) - The Average Power of a Radar calculator computes the average radar power based on the peak power output (Pt) and the duty factor (d).

  • 4. Cell/Organism Count (Logistic Growth) - The Cell/Organism Count (Logistic Growth) calculator computes the νmber of cells/organisms undergoing exponential growth as a population.

  • 5. Combined Gas Law (T) - The Combined Gas Law for Temperature calculator computes the temperature of a gas using the combined gas law that relates the product of pressure and volume to temperature of a gas.

  • 6. Combined Gas Law (V) - The Combined Gas Law Volume calculator computes the volume of a gas using the combined gas law that relates the product of pressure and volume to temperature of a gas.

  • 7. Conveying Capacity - Conveying capacity is determined by speed, belt width and troughing angle and can be expressed as

  • 8. Coulombs Law - The Coulombs Law calculator computes the force between two objects based on their charges, the distance between the objects, and the Coulomb Constant which is a function of the medium such as air or in this case a vacuum.

  • 9. Cross-section Area Pouillets Law - The Pouillets Law Cross-section Area calculator use Pouilets Law (R = ρ • L/A) to compute the cross-section area required to achieve a resistance of an object with uniform cross-section and materials based on resistivity of material and length of the resistive material.

  • 10. ELU - The ELU Function calculator computes the Exponential Linear Unit (ELU) value based on the input value and a hyperparameter.

  • 11. Fraccion de Masa - La ecuación para la fracción de masa computa el ratio de masa de substancia A fuera de una mixtura total de masas de dos o más sustancias[2]. Hipotéticamente, si una mixtura tiene dos sustancias A y sustancia B, la fracción molar de sustancia A serán un ratio de la masa de sustancia A fuera del combinación total de las masas de sustancias A y B.

  • 12. La Ley de Gas Combinada (el volumen) - La calculadora de volumen de la Ley de Gas Combinada calcula el volumen de un gas usando la ley de gas combinada que relaciona el producto de presión y volumen con la temperatura de un gas.

  • 13. La Ley de Gas Combinada (la temperatura) - La Ley de Gas Combinada calcula la temperatura de un gas usando la ley combinada de gas que relaciona el producto de presión y volumen con la temperatura de un gas.

  • 14. Leaky ReLU - The PReLU Function calculator computes the Parametric Rectified Linear Unit (PReLU) value based on the input value and a hyperparameter.

  • 15. Mass Fraction - The mass fraction equation computes the ratio of mass substance A out of a total mixture of masses of two or more substances[2]. Hypothetically, if a mixture contained two substances A and substance B, mass fraction of substance A will be a ratio of the mass of substance A out of the total combination of masses of substance A and B. 

  • 16. Mass Fraction of Vapor Phase - The Mass Fraction of Vapor Phase calculator compute the fractional portion of mass based on the mass of the liquid and mass of the vapor.

  • 17. MoI - cylinder about x-axis - __Mass Moment of Inertia__

  • 18. Nodes in a Hidden Layer - The Νmber of Nodes in a Neural Network Hidden Layer calculator computes the νmber of nodes in a neural network hidden layer based on the νmber of input nodes and output nodes.

  • 19. PReLU - The PReLU Function calculator computes the Parametric Rectified Linear Unit (PReLU) value based on the input value and a hyperparameter.

  • 20. Receiver Antenna Effective Area - This Receiver Antenna Effective Area equation{{footnote}}Performance Limits for Synthetic Aperture Radar - Second Edition. Sandia National Laboratories, Albuquerque, NM. Printed February 2006. {{/footnote}} calculates the effective area of a receiving antenna. This equation is most helpful in the context of calculating the [[Signal-to-Noise of a Synthetic Aperture Radar.>>/calculator/?uuid=6b84c24c-2cd0-11e6-9770-bc764e2038f2]]

  • 21. ReLU - The ReLU Function calculator computes the Rectified Linear Unit (ReLU) value based on the input value.

  • 22. SAR Duty Factor - The SAR Duty Factor calculator computes duty factor for a mono static synthetic aperture radar based on the pulse frequency and the time between pulses.

  • 23. Sigmoid Function - The Sigmoid Function calculator computes the sigmoid value based on the input value.

  • 24. Signal-to-Noise (SNR) for SAR (1) - The Signal-to-Noise ratio for a Synthetic Aperture Radar calculator compute a factor that indicates the πcture quality for a Synthetic Aperture Radar (SAR) based on νmerous antenna and target characteristics (see inputs).

  • 25. Signal-to-Noise (SNR) for SAR (2) - The Signal-to-Noise ratio for a Synthetic Aperture Radar calculator compute a factor that indicates the πcture quality for a Synthetic Aperture Radar (SAR) based on νmerous antenna and target characteristics (see inputs).

  • 26. SNR Gain Due to Azimuth Processing (coherent pulse integration) - The SNR Gain Due to Azimuth Processing calculator computes the gain based on the νmber of pulses integrated and 

  • 27. SNR Gain Due to Range Processing (pulse compression) - The Signal to Noise Ratio Gain due to Range Processing calculator computes the gain based on the effective pulse width, noise bandwidth and reduction in signal noise.

  • 28. Specific Volume of Two-Phase System - This equation computes the specific volume of a two phase system, ν from the specific volume of the saturated liquid, the specific volume of the saturated vapor, and the mass fraction of the vapor phase.

  • 29. Strain - The Strain calculator computes the ratio of change in length to original length.

  • 30. Thermistor - The Thermistor calculator returns the resistance at an end temperature based on the base temperature and resistance, an operating temperature and thermistor B coefficient.

  • 31. Time estimating Repetitive Tasks - The learning curve captures the relationship between task performance and task repetition. In general. as output doubles the-unit production time will be reduced to some fixed percentage. the learning curve percentage or learning curve rate. This equation uses the learning curve to calculate a time estimation for completion of some νmber of repetitive tasks.

  • 32. Transmitter Antenna Gain Factor (Monostatic SAR) - The Transmitter Antenna Gain Factor (Monostatic SAR) calculator computes the gain factor based on the effective area of the receiver antenna and nominal wavelength of the radar.

  • 33. Two-Way Atmospheric Loss Rate Lookup (Radar) - This lookup-equation provides the approximate{{footnote}}Performance Limits for Synthetic Aperture Radar - Second Edition. Sandia National Laboratories, Albuquerque, NM. Printed February 2006. {{/footnote}} for use in the radar equation. This lookup-equation is most helpful in the context of calculating the [[Signal-to-Noise of a Synthetic Aperture Radar.>>/calculator/?uuid=6b84c24c-2cd0-11e6-9770-bc764e2038f2]]

  • 34. Νsselt Νmber - This equation pertains to heat transfer phenomena at a boundaries. A particular case of this heat transfer occurs a the surface of turbulent flow through circular tubes. The Νsselt νmber (Ν) is defined as the ratio of convective to conductive heat transfer at (normal to) these boundaries.

Euclidean Geometry (3D)

Euclidean , three-dimensional space (3D) is a geometric three-parameter model of the physical universe (without considering time) in which all known matter exists. These three dimensions can be labeled by a combination of three chosen from the terms length, width, height, depth, and breadth. Any three directions can be chosen, provided that they do not all lie in the same plane.

Calculators & Collections (14)

  • 1. Column Calculator - The volume calculator provides the volume equations for νmerous geometric shapes. The calculation allow the user to enter dimension in any of a large νmber of length units (SI, English, other).

  • 2. Cone Calc - The cone calculator contains equations related to objects shaped like a right geometric circular cone including equations for volume, surface area, mass and moments of inertia.

  • 3. Ellipsoid Calc - The Ellipsoid Calculator provides equations and data to compute the volume, surface area , mass and weight of ellipsoids including the specials cases of an ellipsoid: the oblate spheroid and the sphere. 

  • 4. Geometry(3D) - The 3D Geometry calculator has formulas for volumes and surface areas of euclidean shapes (3D) including spherical (ellipsoid), conic, cylindrical, rectangular and other miscellaneous shapes.

  • 5. LM 27.0 General relativity Collection - 27. General relativity by Benjamin Crowell, books/lm/ch27/ch27.html#Section27.>Light and Matter  licensed under the Creative Commons Attribution-ShareAlike license.

  • 6. LM 27.1 Our universe isn't Euclidean Collection - 27.1 Our universe isnt Euclidean by Benjamin Crowell, books/lm/ch27/ch27.html#Section27.1>Light and Matter  licensed under the Creative Commons Attribution-ShareAlike license.

  • 7. Mass of Shapes and Containers - The Mass of Shapes and Containers calculator contains the mass / weight equations for a variety of geometric shapes and provides the mean density for a large νmber of substances.   

  • 8. Phys 259 geometry formulas - The Phys 259 geometry formulas calculator includes the standard list of equations for Physics 259. Furthermore, the equations provide for inputs and outputs in various units for length, area and volume.

  • 9. Pyramid Calc - The Pyramid Calculator contains equations related to objects shaped like a geometric pyramid. This includes equations for volume and mass. Pyramids can have bases of triangles, squared and polygons. The pyramids can be full pyramids or frustums. A frustum is made by parallel planes slicing through an object. The equations in this calculator include formula for the volume and mass of pyramid shaped objects.

  • 10. Sphere Calc - The Sphere Calculator contains equations for volumes, surface areas,

  • 11. Trapezoidal Volume - Trapezoidal Volume Calculators

  • 12. Vector Calculator (3D) - The Vector Calculator (3D) computes vector functions (e.g. V • U and V x U) in three dimensional (3D) space.  

  • 13. Volume - The Volume Calculator computes the volume of νmerous geometric shapes and common combinations of geometric shapes.  The calculation allow the user to enter dimension in any of a large νmber of length units (SI, English, other).  The Volume Calculator:

  • 14. Weight and Volume Calc - The Weight and Volume Calculator contains volume and mass / weight equations for a variety of geometric shapes and provides the mean density for a large νmber of substances.   

Equations (229)

  • 1. 4-Vector Norm - This equation computes the Vector Norm, the positive length of a vector, of the four-vector , vecVec.

  • 2. 5-Vector Norm - This equation computes the Vector Norm, the positive length of a vector, of the five-vector , vecVec.

  • 3. Angle between Vectors - The Angle Between Vectors calculator computes the angle(α) separating two vectors (V and U)  in three dimensional space.

  • 4. Area between Vectors - The Vector Area calculator computes the area swept between two vectors (V and U) in Euclidean three dimensional space. This is the light blue area in the graphic.

  • 5. Bottle - mass - The Mass of a Bottle calculator computes the mass based on the dimensions of the bottle and the mean density of the material.

  • 6. Bottle - surface area - The Surface Area of a Bottle calculator computes the surface area (A) of a bottle.

  • 7. Bottle Volume - The Volume of a Bottle calculator computes the volume of a bottle shaped object (see diagram).  NEW:  Inputs have changed to use diameter instead of radius.

  • 8. Box - Content Weight - The Weight of Content in a Box calculator computes weight of substance in a box defined by the boxs dimensions and the mean density.  

  • 9. Box - Diagonal - The Diagonal of a Box calculator computes the diagonal (D) of a box (a.k.a. rectangular parallelepiped) based on the length, height and depth (see diagram).

  • 10. Box - Surface Area - The Surface Area of a Box calculator computes the surface area (SA) of a box (a.k.a. rectangular parallelepiped) based on the following parameters (see diagram):

  • 11. Box Volume - The Volume of a Box calculator computes the volume of a box (a.k.a. rectangular parallelepiped) based on the length, height and depth (see diagram).

  • 12. Box Weight - The Mass or Weight of a Solid Cuboid formula provides the weight or mass of a cuboid (a.k.a. box, right parallelepiped ) of length (l), height (h) and depth (d) and a mean density (mD).

  • 13. Capacity of a Dished End Tank - The Capacity of a Dished End (Torispherical) Tank calculator computes the volume of a cylindrical tank with torispherical heads based on the length (L) and diameter (D) of the tank and the crown radius (R) and knuckle radius (a) of the torispherical heads.

  • 14. Capsule - surface area - The Surface Area of a Capsule calculator computes the surface area of a capsule, also known as a spherocylinder.

  • 15. Capsule - volume - The Volume of a Capsule calculator computes volume of a capsule, also known as a spherocylinder.  

  • 16. Capsule - weight - The Weight (Mass) of a Capsule calculator computes mass or weight of a capsule, also known as a spherocylinder. 

  • 17. Cartesian to Cylindrical - The Cartesian to Cylindrical calculator converts Cartesian coordinates into Cylindrical coordinates.  

  • 18. Cartesian to Spherical - The Cartesian to Spherical Coordinates calculator computes the spherical coordinates for a vector given its Cartesian coordinates.   

  • 19. Central angle of horizon - The Central Angle of Horizon calculator computes the radial angle of the Earth at which an observer can see the horizon. In other words, this calculator reports the angle measured around a great circle of the Earth to a point on the horizon.

  • 20. Chamfer Weight - The Chamfer Weight(Mass)  formula computes the mass or weight of  a (light grey area) of a right circular cone within a cone frustum.

  • 21. Circle - radius - This Radius of a Circle calculator computes the radius of a circle given the circles center and a point anywhere on the circle. 

  • 22. Component Force 3D - The Component Force 3D  calculator computes the component force along an axis based on the magnitude of the force and the angle between the vector and the axis.

  • 23. Cone - Frustum Surface Area - The Surface Area of a Cones Frustum equation,  , computes the lateral surface area (blue in diagram) of a right circular cone with a frustum defined by base radius (a) and top radius (b) and height (h) in between.

  • 24. Cone - Frustum Surface Area (total) - The Total Surface Area of the Frustum of a Cone calculator computes the total surface area of the frustum of a right circular cone, where the frustum is defined by base radius (a) and top radius (b) and height (h) in between. The surface area in this formula includes the lateral surface area (sloped sides) and the top and bottom circular areas.

  • 25. Cone - Frustum Surface Area 2 - This Surface Area of a Cone Frustum calculator computes the lateral surface area of a right circular cone with a frustum defined by base radius (a) and top radius (b) and the side wall length (L) in between.

  • 26. Cone - Height - The Height of a Cone formula ( h = 3V / πr² ) computes the height (h) of a cone with a circular base with a radius (r) and a Volume (V).

  • 27. Cone - Shell Volume - The Volume of the Shell of a Cone (Hollow Cone) calculator computes the volume of the shell of a cone.  The volume is a function of the top radius (a), bottom radius (b), thickness (t) and height (h) in between. 

  • 28. Cone - Surface Area - The Surface Area of a Cone calculator computes the surface area as a function of the radius of the base (r) and the height (h).

  • 29. Cone - Volume - The Volume of a Cone calculator computes the volume (V) of a cone with a circular base with a radius (r) and a height (h).

  • 30. Cone - Volume f(A,h) - The Volume of a Cone calculator (V = 1/3 A h) computes the volume (V) of a cone with a base area (A) and a height (h).

  • 31. Cone Frustum Height from Volume and Inner Angle - The Cone Frustum Height from Volume and Inner Angle calculator computes the height of a frustum (slice) of a cone based on the bottom radius and volume of the frustum and the angle of the side. 

  • 32. Cone Frustum Height from Volume and Outer Angle - The Cone Frustum Height from Volume and Outer Side Angle calculator computes the height of a frustum (slice) of a cone based on the bottom radius and volume of the frustum and the angle of the side. 

  • 33. Cone Frustum Volume - The Volume of the Frustum of a Cone calculator computes the volume of a frustum (slice) of a cone based on the top radius (a), bottom radius (b) and height (h) in between. 

  • 34. Cone Frustum Volume from Angle - The Cone Frustum Volume from Angle calculator computes the volume of a frustum (slice) of a cone based on the bottom radius and height in between top and bottom and the angle of the side. 

  • 35. Cone Frustum Weight - The Weight of a Cone Frustum calculator computes the mass (weight) of a right circular cone frustum defined by a top radius (a) and base radius (b), height (h) in between, using the mean density (mD) and volume to calculate the mass of the object.  The frustum of a cone is also known as a truncated cone.

  • 36. Cone Shell Mass - The Weight of a Cone Shell calculator computes the mass (weight) of the shell of a right circular cone or cone frustum defined by a top radius (a) and base radius (b), height (h) in between, the thickness (t) and the mean density (mD). NOTE: NEW DEFAULT UNITS.

  • 37. Cone Weight - The Weight or Mass of a Cone calculator computes the mass based on the mean density of the cone material (mD) and its volume as a function of the height (h) and the radius of the base (r).

  • 38. Conic cylinder - volume - The Volume of a Conic Cylinder calculator computes the volume of a cylinder with cone shaped (tapered) ends (see diagram).

  • 39. Conic cylinder - weight - The Mass of a Conic Cylinder calculator computes the mass or weight of a cylinder with cone shaped (tapered) ends (see diagram).  

  • 40. Cube - Density - The Density of a Cube calculator computes the density of a cube based on the length of a side (s) and the mass (m).

  • 41. Cube - Length of a Side - The Length of the Side of a Cube calculator computes the length of the sides of a cube based on the volume.

  • 42. Cube - Perimeter - The Perimeter of a Cube calculator computes the length of the edges of a cube based on the equation P = 12 • s, where s is the uniform length of the sides.

  • 43. Cube - Perimeter from Volume - The Perimeter of a Cube from the Volume calculator computes the length of the edges of a cube based on the volume of the cube.

  • 44. Cube - Surface Area - The Surface Area of a Cube calculator computes the surface area of the cube based on the equation A = 6•s2, where s is the uniform length of the sides.

  • 45. Cube - Surface Area from Volume - The Surface Area of a Cube from the Volume calculator computes the surface area of a cube based on the volume of the cube.

  • 46. Cube - Volume from Surface Area - The Volume of a Cube from the Surface Area calculator computes the volume (V) of the cube based on the surface area (A) of a cube.

  • 47. Cube Weight - The Weight or Mass of a Cube calculator computes the mass or weight of a cube based on the length of a side (s) and mean density (mD). 

  • 48. Cubic Yards to Cubic Meters - The Cubic Yards to Cubic Meters calculator convert a of volume cubic yards into cubic meters.

  • 49. Cuboid - Diagonal - The Diagonal of a Cuboid calculator computes the diagonal of a cuboid based on the length, height and width (see diagram).

  • 50. Cuboid - Mass - The Mass of a Cuboid calculator computes the mass of a cuboid based on the length, height, width (see diagram) and the mean density.

  • 51. Cuboid - Surface Area - The Surface Area of a Cuboid calculator computes the surface area of a cuboid based on the length, height and width (see diagram).

  • 52. Cuboid - Volume - The Volume of a Cuboid calculator computes the volume of a cuboid based on the length, height and width (see diagram).

  • 53. Cylinder - Height from Surface Area - The Height of a Cylinder from Surface Area calculator computes the height of a cylinder based on the total surface area of a cylinder including its ends and the radius.

  • 54. Cylinder Density - The Density of a Cylinder calculator computes the mean density (ρ) of a cylinder based on the mass (m), height (h) and radius (r). NOTE: NEW DEFAULT INPUT UNITS (millimeters and grams)

  • 55. Cylinder Height - The Height of a Cylinder calculator computes the height (h) of a right circular cylinder from the volume (V) and radius (r) of the base (see diagram).

  • 56. Cylinder Mass - The Mass of a Cylinder calculator computes the mass of a cylinder based on the radius of the cylinder (r), the height (h) and the density (ρ).

  • 57. Cylinder Radius - The Radius of a Cylinder calculator computes the radius of a right circular cylinder from the height (h) and volume (V) (see diagram).

  • 58. Cylinder Side Area - The Lateral Surface Area of a Cylinder calculator computes the lateral (sides only) surface area of a cylinder.

  • 59. Cylinder Surface Area - The Surface Area of a Cylinder calculator computes the total surface area of a cylinder including the sides and the circular ends of the cylinder based on the radius and height.

  • 60. Cylinder Volume - The Volume of a Cylinder calculator computes the volume of a right circular cylinder from the height (h) and radius (r).

  • 61. Cylinder Volume from Height and Circumference - The Volume of a Cylinder from the Height and Circumference calculator computes the volume of a right circular cylinder from the height (h) and circumference (c) of the base (see diagram).

  • 62. Cylinder Weight - The Weight of a Cylinder calculator computes the weight (mass) of a cylinder based on the radius (r) and height of the cylinder (h), and the density of the material (mD).  NEW: Weight of Steel Cylinders using millimeters and density of steel.

  • 63. Cylindrical to Cartesian - The Cylindrical to Cartesian calculator converts Cylindrical coordinates into Cartesian coordinates.  

  • 64. Decagon Volume - This Volume of a Decagon formula,(Vdecagon=5/2 • √(5+2√5) • s2• h) computes the volume a column with a regular decagon face, a polygon with 10 equal sides of length (s) and a height (h).

  • 65. Distance between a point and line - The Distance Between A Point and Line calculator provides the distance from a point (x, y) to a line of the form Ax+By+C=0.

  • 66. Distance to Point On Ring Of Sphere - if we have a point, m, (as in the πcture), somewhere on an axis that extends outside a sphere, we can compute the distance, s, from that point to any point on the sphere by first realizing the perpendicular line to the axis that passes through the point on the sphere forms a right triangle and the distance, s, is the hypotenuse of that right triangle. Using the Pythagorean Theorem, we can compute the distance, s, from the following inputs:

  • 67. Dodecagon Volume - This Volume of a Dodecagon formula, (V=3(2+√3)•s2•h), computes the volume a column with a regular dodecagon face, a polygon with 12 equal sides of length (s) and a height (h).

  • 68. Dodecahedron Surface Area - The Surface Area of a Dodecahedron calculator computes the volume of a regular dodecahedron.

  • 69. Dodecahedron Volume - The Volume of a Dodecahedron calculator computes the volume of a regular dodecahedron.

  • 70. Elevation of Object (angles and separation) - The Elevation of Object calculator computes the height of an object (Y) based on two angle measurements (θ1 and θ2) and the distance between them (x).

  • 71. Ellipse Mean Radius Integrated - The Ellipse Mean Radius Integrated calculator computes an average radius (rμ) of an ellipse based on the semi-major (a) and semi-minor (b) axes of the ellipse.

  • 72. Ellipsoid - Surface Area - The Surface Area of an Ellipsoid calculator uses the Knud Thomsens formula to compute an approximation of the surface area of an ellipsoid based on the lengths of the semi-axes. 

  • 73. Ellipsoid - Volume - The Volume of an Ellipsoid formula, V = 4/3⋅π⋅a⋅b⋅c, computes the volume of an ellipsoid with semi-axes of lengths  a, b, and c.

  • 74. Ellipsoid Cap - Mass - The Mass or Weight of an Ellipsoid Cap calculator computes the mass or weight of an ellipsoid cap where the semi-axes of the ellipsoid are a, b, and c, and the height of the cap is h.  The mean density is also used.

  • 75. Ellipsoid Cap - Volume - The Volume of an Ellipsoid Cap calculator computes the volume of an ellipsoid cap where the semi-axes of the ellipsoid are a, b, and c, and the height of the cap is h.

  • 76. Ellipsoid Weight - The Weight or Mass of an Ellipsoid calculator computes the weight or mass of an ellipsoid with semi-axes of lengths  a, b, and c (see diagram), where the composition of the ellipsoid has a mean density (mD).

  • 77. Elliptical Mass - The Elliptical Mass calculator computes the mass or weight of an ellipse shaped column using the semi-major (a) and semi-minor (b) axes and the height of the column (h).  Note: this is a different that the volume of an ellipsoid (see below).

  • 78. Elliptical Volume - The Elliptical Volume calculator computes the volume of an ellipse shaped column using the semi-major (a) and semi-minor (b) axes and the height of the column (h).  Note: this is a different that the volume of an ellipsoid (see below).

  • 79. Equilateral Triangle Volume - The Volume of Triangle calculator computes the volume of a triangular column with three equal length sides of the triangle and vertical sides.

  • 80. Gallons in a Cylinder - The Gallons in a Cylinder calculator computes the volume of a right circular cylinder in gallons from the height (h) and radius (r) of the base (see diagram).

  • 81. Geocentric to Geodetic Latitude - The Geocentric to Geodetic Latitude calculator computes geodetic latitude from the geocentric latitude.

  • 82. Geodetic to Geocentric Latitude - The Geodetic to Geocentric Latitude calculator computes geocentric latitude from the geodetic latitude.

  • 83. Great Circle Arc Distance - The Great Circle Arc Distance calculator computes the distance between two points on a spherical body along a great circle arc using the Haversine formula based on the latitude and longitude of two points and the mean spherical radius of the sphere.   

  • 84. Great Circle Central Angle - The Great Circle Central Angle calculator computes the central angle made between two point on a sphere connected via a great circle arc.

  • 85. Great Circle Central Angle (Vincenty) - The Great Circle Central Angle (Vincenty) calculator uses three dimensional geometry to calculate the central angle of a great circle arc defined by a pair of latitude/longitude pairs.  This calculation is based on the special case of the Vincenty formula for an ellipsoid with equal major and minor axes. 

  • 86. Haversine - Distance - The Haversine calculator computes the distance between two points on a spherical model of the Earth along a great circle arc.  If you prefer to enter the Haversine calculator in Degrees, Minutes and Seconds, {{equation,8c00d747-2b9a-11ec-993a-bc764e203090,CLICK HERE}}.

  • 87. Hemisphere (Surface Area) - The Surface Area of a Hemisphere calculator computes the surface area (A) of a hemisphere based on the radius.  This includes the circular base.

  • 88. Hemisphere (Volume) - The Volume of a Hemisphere calculator computes the volume of a hemisphere based on the radius.

  • 89. Hemisphere Mass - The Mass of a Hemisphere calculator computes the mass or weight of a hemisphere based on the radius and the mean density of the material in the hemisphere.  UPDATE: New unit default of millimeters and a default density of steel.

  • 90. Hendecagon Volume - This Volume of a Hendecagon calculator computes the volume a column with a regular hendecagon face, a polygon with 11 equal sides of length (s) and a height (h).

  • 91. Heptagon Volume - This Volume of a Heptagon calculator computes the volume of a regular heptagon shaped objects with 7 equal sides of length and a height. 

  • 92. Hexagon Column Surface Area - The Hexagon Surface Area calculator computes the surface area of a regular Hexagon shaped object (e.g. column, prism, gem).  A regular hexagon column has ends that are six sided regular polygons where all of the sides are the same length (s) and a column height (h).   See diagram.

  • 93. Hexagon Mass - The Hexagon Mass calculator computes the mass or weight of a regular Hexagon shaped object or column based on its dimensions and density.  

  • 94. Hexagon Volume - The Hexagon Volume calculator computes the volume of a regular Hexagon shaped object or column.

  • 95. Magnitude of Position - This equation describes an objects position as a scalar value representing the distance from the origin in Cartesian coordinates.

  • 96. Mean Radius of an Ellipse - The Ellipse Mean Radius calculator estimates an average radius (rμ) of an ellipse based on the semi-major (a) and semi-minor (b) axes of the ellipse.

  • 97. Nonagon Volume - This Volume of a Nonagon calculator computes the volume a column with a regular nonagon base and top.

  • 98. Oblate Spheroid - flattening factor - The Oblate Spheroid Flattening Factor calculator computes the flattening factor for an oblate spheroid.

  • 99. Oblate Spheroid Mass - The Mass or Weight of an Oblate Spheroid calculator computes the volume of an oblate spheroid based on the semi-major(b) and semi- minor (c) axis with the assumption that the spheroid is generated via rotation around the minor axis (see diagram).  

  • 100. Oblate Spheroid Surface area - The Surface Area of an Oblate Spheroid calculator approximates the surface area of an oblate spheroid.

  • 101. Oblate Spheroid Volume - The Volume of an Oblate Spheroid equation (v = 4/3  π•b²•c) computes the volume of an oblate spheroid based on the semi-major(b) and semi- minor (c) axis with the assumption that the spheroid is generated via rotation around the minor axis (see diagram).  

  • 102. Octagon Column Surface Area - The Surface Area of an Octagon Volume calculator computes the surface area of an octagonal shaped column or structure.  A regular octagon is an eight sided polygon where all of the sides are the same length (s), with a height (h), one can create a octagon shaped object (e.g. column or planter)

  • 103. Octagon Volume - The Octagon Volume calculator computes the volume of an octagonal shaped column or structure based on the length of its sides (s) and height (h).

  • 104. Octagon Weight - The Mass or Weight of an Octagon Volume calculator computes the mass of an octagonal shaped column or structure based on the length of the sides, the height and the mean density.  

  • 105. Oval Volume - The Oval Volume calculator computes the volume of an oval (elliptical) shaped items with vertical sides using the two center diameters and the thickness.

  • 106. Oval Volume Weight - The Oval Volume Weight calculator computes the weight and volume of an oval (elliptical) shaped items with vertical sides using the two center diameters and the thickness and based on the density of the material.

  • 107. Paraboloid - Surface Area - The Surface Area of Paraboloid calculator computes the surface area of revolution of a parabola around an axis of length (a) of a width of (b) including the circular base.

  • 108. Paraboloid - Volume - The Volume of Paraboloid calculator computes the volume of revolution of a parabola around an axis of length (a) of a width of (b) .

  • 109. Paraboloid Weight - The Mass or Weight of a Paraboloid calculator the weight or mass of a paraboloid of revolution around an axis of length (a) of a width of (b) with a mean density (mD).

  • 110. Pentagon Planter - The Pentagon Planter Volume calculator computes the volume (V) of a pentagon shaped planter based on the length of the sides (s) and (h) height (see diagram).   

  • 111. Pentagon Volume - This Volume of a Pentagon calculator computes the volume of a regular pentagon shaped objects with 5 equal sides of length (s) and a height (h). 

  • 112. Pentagon Weight - This Weight of a Pentagon calculator computes the weight of a regular pentagon shaped objects with 5 equal sides of length, a height and the density of material. 

  • 113. Pentahedorn Volume - The Volume of a Pentahedron calculator computes the volume based on the length of the sides of the base and the height.

  • 114. Pentahedron Surface Area - The Surface Area of a Pentahedron calculator computes the surface area based on the length of the sides of the base and the height.

  • 115. Polygon Base Pyramid Weight - The Mass or Weight of a Pyramid calculator computes the mass or weight of a regular pyramid based on the dimensions of the polygon base, the height and the density of material.

  • 116. Polygon Column Mass - This Mass of a Polygon Based Column calculator computes the mass or weight of a column where the base is the area of a regular polygon with (n) equal sides of length (s), the height (h) of the column, and mean density of the substance of the column.

  • 117. Polygon Pyramid Frustum Weight - The Mass or Weight of the Frustum of a Polygon Pyramid calculator computes the mass or weight of a regular pyramid frustum based on the dimensions of the polygon base, the height of the frustum and the density of material.

  • 118. Polygon Volume - This Volume of a Polygon based column equation computes the volume of a column where the base is the area of a regular polygon with (n) equal sides of length (s) combined with the height (h) to compute the volume.

  • 119. Principal Plane Stress (σ1 = σ_"max") - vCalcs Principle Plane Stress (?1 = ?max) equation computes the first principal stress in a plane stress situation.

  • 120. Prism - Mass - The Mass or Weight of a Prism calculator computes the mass of a prism (see graphic) based on the dimensions of the triangular side, the length and the mean density.

  • 121. Prism - Surface Area - The Surface Area of a Prism calculator computes the surface area of a prism (see graphic) based on the dimensions of the triangular side and the length.

  • 122. Prism - Volume - The Volume of a Prism calculator computes the volume of a prism (see graphic) based on the dimensions of the triangular side and the length.

  • 123. Pyramid (polygon base) - Volume - The Volume of a regular Polygon based Pyramid calculator computes the volume of a right pyramid based on the νmber of sides of the polygon (n), the length of the sides (b) and the height (h).

  • 124. Pyramid (polygon in circle base) - Volume - This formula provides the volume of a right pyramid of a base area (A) and height (h). The base area (A) is defined by a polygon of (n) equal sides within a circle of radius (r).

  • 125. Pyramid (polygon in circle base) - Weight - The Mass or Weight of a Pyramid calculator computes the mass or weight of a regular pyramid based on the dimensions of the polygon base, the height and the density of material.

  • 126. Pyramid (triangle base) - Volume - The Volume of a Triangle Based Pyramid calculator computes the volume (V) of a pyramid with a triangle base that is defined by the length of the three triangle base sides (a,b,c) and height (h) from the base to the apex.

  • 127. Pyramid (triangle base) - Weight - The Weight or Mass of a Triangle Based Pyramid calculator computes the mass (M) of a pyramid with a triangle base that is defined by the length of the three triangle base sides (a,b,c) and height (h) from the base to the apex.  The mass is computed using the volume and the mean density of the composition of the pyramid.  
    INSTRUCTIONS:

  • 128. Pyramid - Volume - The Volume of a Pyramid calculator  computes the volume based on the area of the base and the height.

  • 129. Pyramid - Weight - The Pyramid Weight (Mass) calculator computes the weight or mass of a pyramid of base area (A), height (h) and mean density (mD).

  • 130. Pyramid Frustum (polygon base) - surface area - The Surface Area of Pyramid Frustum calculator computes the surface area of the frustum of right pyramid with two regular polygon bases with the same νmber of sides (n) separated by a height (h). The base polygons are defined by the νmber of sides (n) and the equal side lengths of b and B of the two polygons respectively (see diagram).

  • 131. Pyramid Frustum - Volume - The Volume of the Frustum of a Right Squared-base Pyramid calculator computes the volume of a right square based pyramid with a frustum defined by base side length (R) and top side length (r) and height (h) in between.

  • 132. Pyramid Frustum - Weight - The Pyramid Frustum Weight (Mass) formula computes the weight or mass of a right square pyramid with a frustum defined by base side length (R) and top side length (r) and height (h) in between and a mean density (mD).

  • 133. Quadrilateral Volume - The Volume of Quadrilateral calculator computes the volume of a column of height (h) with a quadrilateral base defined by the length of the four sides (a,b,c,d) and the length of a diagonal between opposing corners (D).

  • 134. Radius of Displaced Circle - This equation computes the radius of a circle given that you know the circles center and a point anywhere on the circle. The circles center can be placed anywhere in the X-Y Plane.

  • 135. Ring Circumference on Sphere - This equation computes the circumference on a sphere of any ring centered about an axis of the sphere where the input is given as:

  • 136. Rotational Speed at Latitude - The Rotational Speed at Latitude calculator computes the rotational speed on the surface of the Earth based on the Earths Rotation Rate and the latitude.

  • 137. Semi-circle Slab Volume - The Cubic Yards in a Semi-circle Concrete Slab calculator computes the volume of concrete in a semicircular shaped slab based on the radius (r) and the depth (d).

  • 138. Semi-circle Slab Weight - The Weight of a Semi-circle Concrete Slab calculator computes the weight or mass of a semicircular shaped concrete slab based on the radius (r), the depth (D) and mean density of concrete.

  • 139. Semicircle - Volume - The Volume of a Semicircle calculator computes the volume of a semicircular shape based on the radius (r) and the height (h).

  • 140. Semicircle - Volume Height - The Height of a Semicircle Volume calculator computes the vertical height of a semicircular shape based on the volume (V) and the height (r).

  • 141. Semicircle - Volume Radius - The Radius of a Semicircle Volume calculator computes the radius of a semicircular shape based on the volume (V) and the height (h).

  • 142. Semicircle Weight - The Weight of a Semicircle calculator computes the weight of a semicircular shape based on the radius, height and density.

  • 143. Size of Hail in the Bible (Revelation 16) - This calculator computes the radius of an ice sphere based on the spheres weight  and the density of ice.

  • 144. Slanted Cylinder Area from Angle - The Slanted Cylinder Surface Area from Angle calculator computes the lateral area (surface area of the sides) of a slanted cylinder based on its radius, height and slant angle (slope).

  • 145. Slanted Cylinder Surface Area - The Surface Area of a Slanted Cylinder computes the surface area of a slanted cylinder based on the radius of the base and the length of the side.

  • 146. Slanted Cylinder Volume - The Volume of a Slanted Cylinder calculator computes the volume of a slanted cylinder as a function of the radius, side length and slant angle (see diagram):

  • 147. Slanted Cylinder Weight - The Mass or Weight of a Slanted Cylinder calculator compute the mass or weight based on the radius of the cylinder, the side length, the slant angle and the mean density.

  • 148. Sphere - Cap Surface Area - The Surface Area of a Spherical Cap calculator returns the surface area based on the radius of the sphere and the height of the cap.  

  • 149. Sphere - Cap Volume - The Volume of a the Cap of a Sphere calculator computes  the volume of the cap of a sphere defined by a depth (h) from the surface in a sphere defined by a radius (r) .

  • 150. Sphere - Density - The Density of a Sphere calculator computes the density a sphere (ρ) based on the radius (r) of the sphere and the mass (M).

  • 151. Sphere - Radius from Surface Area - The Radius of a Sphere from the Surface Area calculator computes the radius (r) based on the surface area of a sphere (SA). 

  • 152. Sphere - Radius from Volume - The Radius of a Sphere from the Volume calculator computes the radius (r) based on the volume of a sphere (V).

  • 153. sphere - segment Surface Area - The Surface Area of a Sphere Segment calculator computes the surface area of a slice of a sphere made by two parallel plane cutting through the sphere (See Diagram). The surface area is just for the sphere walls and does not include the top and bottom circles.

  • 154. sphere - segment total Surface Area - The Surface Area of a Sphere Segment calculator computes the surface area of a slice of a sphere made by two parallel plane cutting through the sphere (See Diagram) including the top and bottom circles. 

  • 155. Sphere - Shell Inner Volume - The Volume Inside of a Spherical Shell calculator computes the volume inside spherical shell with an outer radius (r) and a thickness (t).

  • 156. Sphere - Shell Volume - The Volume of a Spherical Shell calculator computes the volume of a spherical shell with an outer radius and a thickness. 

  • 157. Sphere - Surface Area - The Surface Area of a Sphere calculator  computes the surface area of a sphere based on its radius (r).

  • 158. Sphere - Surface Area from Volume - The Surface Area of a Sphere from the Volume calculator computes the Surface Area based on the volume of a sphere.

  • 159. Sphere - Triangle Area - The Area of a Triangle on a Sphere calculator computes the surface area of a triangle on a sphere based on the angle of the three corners and the radius of the sphere.

  • 160. Sphere - Volume - The Volume of a Sphere calculator computes the volume of a sphere (V) based on the radius of the sphere (r).

  • 161. Sphere - Volume from Circumference - The Volume of a Sphere from the Circumference calculator computes the volume of a sphere based on its circumference.

  • 162. Sphere - Volume from Surface Area - The Volume of a Sphere from the Surface Area calculator computes the volume (V) based on the surface area of a sphere (SA).

  • 163. Sphere Cap Weight - The Mass or Weight of a Sphere Cap calculator computes the mass of a section of a sphere that includes the surface (i.e. a sphere cap - see diagram).  

  • 164. Sphere Equation from Four Points - The Sphere Equation from Four Points calculator computes equation of a sphere based on four non-co-planar points in space.  It also returns the center point and sphere radius.

  • 165. Sphere Mass - The Mass or Weight of a Sphere calculator computes the mass or weight of a sphere based on the radius (r) and the mean density (ρ). NEW: Default units have been updated to millimeters.  ALSO NEW: Default density has been updated to 7,850 kg/m3 for density of steel.

  • 166. Sphere Segment Volume - The Volume of Sphere Segment, Slice or Frustum calculator computes the volume of the section of a sphere made by two parallel planes cutting through the sphere. 

  • 167. Sphere Segment Weight - The Mass or Weight of a Sphere Segment Weight calculator computes the weight or mass of a slice of a sphere.  

  • 168. Sphere Shell Mass - The Mass or Weight of a Spherical Shell calculator computes the volume of a spherical shell with an outer radius (r) and a thickness (t).  INSTRUCTIONS: Choose your units (e.g. centimeters, inches or kilometers) and enter the following parameters:

  • 169. Sphere Volume from Mass and Density - The Volume of a Sphere from Mass and Density calculator computes the volume of a sphere based on the mass and density.

  • 170. Spherical Bowl Volume - The Volume of a Spherical Bowl calculator computes the volume of a round/spherical bowl. 

  • 171. Spherical to Cartesian - The Spherical to Cartesian formula calculates the cartesian coordinates  for a vector give its Spherical coordinates.   

  • 172. Spherical triangle side from law of cosines - Define the spherical triangle with sides A, B, and C (measured by subtending angles) and opposing angles α, β, and γ. Given the three angles, calculate any of the three sides (i.e. subtending angles). In this case, return the side α across from angle A. Note that in a spherical triangle, the sum of the three angles μst be > 180 degrees.

  • 173. Squared Volume - This Volume of a Square formula, (V = s2 • h), computes the volume a column with a squared face, a polygon with 4 equal sides of length (s) and a height (h).

  • 174. Surface Area Polygon Column - This Surface Area of a Polygon Based Column calculator computes the mass or weight of a column where the base is the area of a regular polygon with (n) equal sides of length (s), the height (h) of the column, and mean density of the substance of the column.

  • 175. Tetrahedron - Face Area - The Face Area of a Tetrahedron calculator computes the area of one face of a tetrahedron based on the length of a side (a).

  • 176. Tetrahedron - Height - The Height of a Tetrahedron calculator computes the height of a tetrahedron based on the length of a side (a).

  • 177. Tetrahedron - Mass - The Mass or Weight of a Tetrahedron calculator computes the mass or weight (M) of a tetrahedron based on the length of a side (a) and the density of the substance of which the tetrahedron is made.

  • 178. Tetrahedron - Surface Area - The Surface Area of a Tetrahedron calculator computes the surface area of a regular tetrahedron based on the length of a side (a).

  • 179. Tetrahedron - Volume - The Volume of a Tetrahedron calculator computes the volume of a tetrahedron based on the length of a side (a).

  • 180. Tons (US) to Metric Tons - The Cubic Yards to Cubic Meters calculator convert a of volume cubic yards into cubic meters.

  • 181. Torispherical Head Tank Content Mass - The Mass of Torispherical Tank Content calculator computes the mass of a cylindrical tank with torispherical heads based on the volume and the mean density of the contents.

  • 182. Torispherical Head Volume and Height - The Torispherical Head Volume and Height calculator computes the volume of an torispherical head based on the crown radius (R), knuckle radius (a) and the Diameter (D). It also computes the head height (h).  

  • 183. Torque Free Ratio of Ellipsoid Spin to Precession - The Torque Free Ratio of Ellipsoid Spin to Precession equation computes the torque free spin-to-wobble (aka spin-to-precession) ratio for an ellipsoid. This ratio can be used as a measure of the stability of the motion of an ellipsoid spinning about the major axis.

  • 184. Torus - Surface Area - The Surface Area of a Torus calculator computes the surface area of a torus (circular tube) based on an inner radius of (a) and an outer radius of (b).

  • 185. Torus - Surface Area 2 - The Torus Surface Area calculator computes the surface area of a torus (circular tube) with a major radius of (R) and a minor radius of (r).

  • 186. Torus - Volume - The Volume of a Torus calculator computes the volume of a torus (circular tube) with an inner radius of (a) and an outer radius of (b).

  • 187. Torus - Volume 2 - The Volume of a Torus calculator computes the volume of a torus (circular tube) with a major radius of (R) and a minor radius of (r).

  • 188. Torus Weight - The Torus Weight (Mass) calculator computes the weight or mass of a torus (circular tube) with an inner radius of (a), an outer radius of (b) and a mean density (mD).

  • 189. Travel Time between Coordinates - The Haversine Travel Time between Coordinates calculator computes the time to travel between to points on the globe in a great circle arc at an average velocity. 

  • 190. Triangle Volume - The Triangle Volume calculator computes the volume of a triangular shaped object (such as a prism) given the length the triangles three sides and the height (h) of the area.

  • 191. Triangular Weight - The Weight or Mass of a Triangular Shaped Object calculator computes the mass based on the length of three sides and the height.

  • 192. Two Vector Functions - The Two Vector Functions (V and U) computes the resulting function, vector (W) or scalar, that is the result of the operation and two vectors (V and U) in three dimensional space.

  • 193. V = A * d - The Volume calculator computes the volume of an object based the surface area (A) and a depth (d).

  • 194. V = L*W*D - The Volume of a Box calculator computes the volume of a box (a.k.a. rectangular parallelepiped) based on the length, height and depth (see diagram).

  • 195. V2 - Vector (x component) - A vector is a mathematical concept of an object that has both direction and length. A line alone is not a vector but a line with directed orientation spanning the distance between two points in space is a vector. This equation computes the component of a vector that is the vectors projection on the x-axis of Cartesian coordinates.

  • 196. V2 - Vector (y component) - A vector is a mathematical concept of an object that has direction and length. A line alone is not a vector but a line with orientation spanning the distance between two arbitrary points in space is a vector. This equation computes the component of a vector that is the vectors projection on the y-axis of Cartesian coordinates.

  • 197. V2 - Vector addition orthogonal vectors (magnitude) - This equation computes the sum of two orthogonal vectors.

  • 198. V2 - Vector addition orthogonal vectors (x,y) - This equation computes the sum of two orthogonal vectors and outputs the resultant vectors x,y components (as text results).

  • 199. V3 - Distance between Vectors - The Distance between Vectors ( |V - U| ) calculator computes the magnitude of the difference of the end points of two vectors in three dimensional space.  The result is the distance between the endpoints of vector U and vector V.

  • 200. V3 - Mixed Product (cross and dot) - The vector Mixed Product (V x U • W) calculator computes the dot product of a vector (W) and the cross product of two other vectors (V and U) in three dimensional space.

  • 201. V3 - scalar division - The Vector Scalar Division calculator computes the vector (U) which is the result of a vector (V) divided by a scalar (k).

  • 202. V3 - scalar μltiplication - The Vector Scalar Μltiplication formula, (k⋅V), computes the vector  which is the result of a scalar μltiplication of a vector (V) and a scalar (k).

  • 203. V3 - Unit Vector - The Unit Vector calculator, U = V/|V|, computes the unit vector (U) for a vector (V) in Euclidean three dimensional space.

  • 204. V3 - vector addition - The Vector Addition (V + U) calculator computes the vector that is the sum of two vectors  in three dimensional space.

  • 205. V3 - Vector Cross Product - The Vector Cross Product (V x U) computes the resulting vector (W) that is normal to the plane defined  by two vectors (V and U) in three dimensional space.

  • 206. V3 - Vector Dot Product - The Vector Dot Product (V•U) calculator computes the dot product of two vectors (V and U) in Euclidean three dimensional space.

  • 207. V3 - Vector Magnitude - The Vector Magnitude calculator computes the magnitude |V| of a three dimensional vector (V).

  • 208. V3 - Vector Norm - This equation computes the Vector Norm, the positive length, of a vector from the Euclidean three space x,y,z components of the vector.

  • 209. V3 - vector subtraction - The Vector Subtraction (V - U) calculator computes the vector (W) that is the difference of two vectors  in three dimensional space.

  • 210. V3 - |V+U| - The Magnitude of Vector Addition ( |V + U| ) calculator computes the magnitude of thesum of two vectors in three dimensional space.

  • 211. V3 - |V| - Unit vector formula calculates the magnitude of a vector (V) in three dimensional space with units of length.

  • 212. Vector Norm - The Vector Norm calculator computes the norm, aka magnitude, of a three dimensional vector (V).

  • 213. Vector Normal to a Plane - The Unit Vector Normal to a Plane calculator computes the normal unit vector to a plane defined by three points in a three dimensional cartesian coordinate frame.

  • 214. Vector Projection - The Vector Projection calculator computes the resulting vector (W)  that is a projection of vector V onto vector U in three dimensional space.

  • 215. Vector Rotation - The Vector Rotation calculator computes the resulting 3D vector created by rotating a base vector (V) about a rotation vector (U) by an angle(α).

  • 216. Vector Sum of Forces (2D) - The Vector Sum of Forces (2D) calculator computes the sum of two vectors by summing the x and y components of the two vectors.

  • 217. Volume from Area and Height - The Volume from Area and Height calculator computes the volume based on the area (A) and depth or height (h).

  • 218. Volume in Horizontal Cylinder - The Volume in a Horizontal Cylinder calculator computes partial volume of a horizontal circular cylinder based on the radius and length of the cylinder and the vertical height of the content in the cylinder (see diagram).

  • 219. Volume of a Cube - The Volume of a Cube calculator computes the volume of the cube based on the uniform length of the sides (s). 

  • 220. Volume of a Curved Bowl - The Volume of Curved Bowl calculator computes the volume of symmetrical curved bowl based on the depth and width.

  • 221. Volume of Cone Frustum with a Core - The Volume of Cone Frustum with a Core calculator computes the volume (displacement) of cone frustum that has a cylindrical core based on the dimensions.

  • 222. Volume of Polygon Base Pyramid Frustum -  The Volume of a Polygon Based Pyramid Frustum calculator computes the volume of the frustum of right pyramid with two regular polygon bases (top and bottom) with the same νmber of sides (n) separated by a height (h).  

  • 223. Volume of Water in a Tank - The Volume of Water in a Tank calculator computes the volume of water in a right circular cylinder tank.

  • 224. Volume Unit Conversion - The Volume Unit Conversion calculator converts a measurement of volume from one set of volume units to a list of other imperial and metric volume units including liters, cubic meters, cubic inches, feet, yards and miles, acre-feet, liters, gallons, cups, quarts, πnts, teaspoons, barrels and bushels.

  • 225. VTH - The Volume of an Torispherical Head calculator computes the volume of an torispherical head based on the crown radius (R), knuckle radius (a) and the height (h).

  • 226. Water in a Pentagon Pond - The Water in a Five Sided Pond calculator computes the volume of water in five sided (pentagon shaped) pond. 

  • 227. Weight of a Partially Filled Horizontal Cylinder - The Weight or Mass of a Horizontal Cylinder calculator computes weight or mass of a partially filled horizontal circular cylinder based on the radius and length of the cylinder and the vertical height of the content in the cylinder (see diagram).

  • 228. Weight of Volume - The Weight of a Volume calculator computes the weight or mass of a volume (V) of material based on its mean density (mD)

  • 229. Weight of Water in a Tank - The Weight of the Water in a Tank calculator computes the weight of water based on the diameter of the tank and the depth of the water column in the tank.

Fiber Optics

Fiber optics are very thin strands of glass or plastic that carry information using light signals instead of electrical signals.

Calculators & Collections (1)

  • 1. Telecommunications Calculators - The Telecommunications Calculator has functions to support analysis and measurements in field of telecommunications including cabling, fiber optics and radio frequency (RF) mediums.  Please recommend more functions to make this even more useful.

Equations (2)

  • 1. Cable Loss Budget - The Fiber-optic Cable dB Loss Budget calculator computes the transmission loss budget (allowance) in dB over a distance of fiber optic cable based on the length of the cable (L), type of cable (FT), νmber of connectors (C), the dB loss per connector (CL), the νmber of splices (S), and the dB loss per connector (CL). 

  • 2. dB Loss Calc - The dB Loss calculator computes the dB loss over a distance (L) including nominal rate of loss per kilometer (LL) and losses associated with any νmber of step downs in two types of loss sources (e.g. relays, connectors or splices).

Finance

Finance is a field that applies the theories of economics to the allocation of assets and liabilities. Finance can also be defined as the science of money management which prices assets based on their risk level and their expected rate of return. Finance can be broken into three different sub-categories: Personal finance, Corporate finance and Public finance,

Calculators & Collections (14)

  • 1. Annuity Calculator - The annuity calculator is used to compute the payout amount of any continuing payment with a fixed total annual amount.

  • 2. Finance 20s01abt023 - Any economic resource assessed in terms of money that a company uses to purchase the materials they require to manufacture their goods or deliver their services is known as capital.

  • 3. FINANCE 21J01ABT033 - A financial calculator is a device that can solve equations that a standard calculator cannot. Its designed with stand-alone keys that arent found on other calculators, allowing it to conduct more direct computations.The Finance calculator has equations for loans, investments and other related tools and calculations.

  • 4. Finance Calc

  • 5. Finance Calculator - Table of Contents

  • 6. Finance Calculator - Financial Calculators

  • 7. Finance Monitoring Calculator - Finance Monitoring Calculator

  • 8. Future Value (FV) Calculator - This future value calculator is used to compute the value of a cash flow at a later date in the future. The calculator has four buttons (click the lime colored buttons on the right side) that compute:

  • 9. Goodwill Calculator - The Goodwill Calculator is used to compute the value of Goodwill, an intangible but quantifiable asset, in several ways. Goodwill is the present value of the future above-average earnings of a business. (Note: The above-average earnings vary from industry to industry).

  • 10. Investment & Loan Calculator -

    Description

  • 11. Investment Help Calculator - BACKGROUND

  • 12. Loan and Mortage - The Finance calculator has equations for loans, investments and other related tools and calculations.

  • 13. Microeconomics Calculator - The Microeconomics Calculator has the most common microeconomics equations based on widely accepted university texts including the following:

  • 14. Salary Calculator - This salary calculator is used to compute 4 category of salaries. These are based on hourly rate conversions into daily, weekly, monthly and yearly wages and salaries respectively. The average νmber of hours worked in a week is 40 hours, while there is a maximum of 52 weeks and 12 months in a year.

Equations (164)

  • 1. 2018 Federal Tax Rate Schedules - The 2018 Federal Tax Rate Schedules (Form 1040 ES) calculator estimates the taxes you will pay for 2018. We are not accountants or tax advisers and we recommend that you perform your own calculations using the IRS worksheets or consult your accountant and do not rely solely on this calculator.

  • 2. Accounting Equation (Capital) - The Capital Accounting Equation calculator computes capital based on assets and liabilities.

  • 3. Accounting Equation [Data set] - This equation computes the total of a companys Capital as the difference between the companys Assets and the companys Liabilities. The individual assets and liabilities are entered into the data set, [[Assets and Liabilities>>/dataset/?uuid=8cac5c70-9a99-11e4-a9fb-bc764e2038f2||rel=_blank]], so you can break down assets and liabilities to whatever level of detail is desired.

  • 4. Acid Test Ratio - The Acid-Test ratio equation is used to determine the relationship of quick assets to current liabilities. The Acid-test ratio indicates a companys ability to meet its current obligations. The recommended minimum ratio between quick assets and current liabilities should be 1:1.

  • 5. Advertising ROI - The Advertising ROI calculator computes the νmber of units sales needed to cover cost of advertising.

  • 6. Annual Percentage Yield - The Annual Percentage Yield calculator computes the annual yield percentage (APY) as defined by the common mathematical definition.  The APY in this definition is the rate of interest that is earned when taking into consideration the effect of compounding. In Finance, it is also known as the effective annual rate.  See also APY(FDIC).

  • 7. Annual Percentage Yield - Annual Percentage Yield (APY) is the rate of interest that is earned when taking into consideration the effect of compounding. In Finance, APY is used when referring to the rate paid by a financial institution to a customer while the Annual Percentage Rate (APR) is used when referring to the rate paid by the customer to the financial Constitution.

  • 8. Annualized Holding Period Yield - The Annualized Holding Period Yield calculator computes the yield based on total return, original investment and the period investment is held.

  • 9. Annuity - Future Value with Continuous Compounding - The Future Value of Annuity calculator computes the future value based on the cash flow (CF), rate of interest per period (r) and the νmber of periods (t).

  • 10. Annuity Due-Payment (FV) - The Annuity Due-Payment (FV) computes the regular payment (P) required in an annuity to achieve a future value (FV) after a νmber of periods (n) at a constant growth rate per period (r).

  • 11. Annuity Due-Payment (PV) - The Annuity Due-Payment (PV) calculator computes the periodic payment (P) from a fixed rate (r) annuity that draws down the annuity to zero over a νmber of periods (n) (see Example below).

  • 12. Annuity-Payment (FV) - The Annuity-Payment based on Future Value calculator computes the regular payments (P) that need to be made into a fixed rated (r) annuity over a νmber of periods (n) to achieve a future value (FV).

  • 13. Annuity-Payment (PV) - The Annuity Payment based on Present Value calculator computes the payment from a fixed rate (r) annuity, loan or structured settlement over a νmber of periods (n).

  • 14. APY (FDIC) - The Annual Percentage Yield (APY) calculator computes the Annual Percentage Yield (APY) as it is defined by the US [[FDIC>>url:https://www.fdic.gov/regulations/laws/rules/6500-3400.html||rel=_blank]].

  • 15. Arbitrary Goodwill Value Agreement - The Arbitrary Goodwill Value calculator returns the arbitrary value of goodwill.

  • 16. Asset to Sales Ratio - The Asset to Sales Ratio calculator computes the Asset to Sales Ratio based on the total value of Asset and the total Sales.

  • 17. Asset Turnover - The Asset Turnover calculator computes the turnover ratio based on the total assets and sales revenue.

  • 18. Asset Turnover Ratio - The amount of sales or revenues generated per dollar of assets. The Asset Turnover ratio is an indicator of the efficiency with which a company is deploying its assets. This ratio is the relationship between net sales and average total asset.

  • 19. Average Collection Period - The Average Collection Period calculator computes the average νmber of days between credit sales and collection of funds.

  • 20. Balloon Loan Payments - The balloon loan payment equation is used to calculate the balloon payment expected to clear the balance remaining after all periodic payments have been made at the end of the term. Examples of loans that may use the balloon loan payment formula would be auto leases, balloon mortgages, and any other form of loan not paid in full at its end date.

  • 21. Bank Discount Yield - The Bank Discount Yield equation is used to determine the annual percentage return on a bond.

  • 22. Bank Efficiency Ratio - The Bank Efficiency Ratio calculator computes the bank efficiency ratio based on the non-interest expense, net interest income, non-interest income and gains on investment securities.

  • 23. Benefits of Extra Mortgage Payments - The Benefits of Extra Mortgage Payments calculator computes benefit (money saved) by making a regular extra payment every month over the life of a mortgage.

  • 24. Bid Ask Spread - The Bid Ask Spread (BAS) is the difference between the asking price and bid price of a particular investment.This formula is mainly used on investments that sell on an exchange.

  • 25. Bid Ask SpreadCopy - This is the difference between the asking price and bid price of a particular investment.This formula is mainly used on investments that sell on an exchange.

  • 26. Black-Scholes - The Black-Scholes calculator computes the values for Call and Put Options based on the Black-Scholes equation.  

  • 27. Bond Equivalent Yield - The Bond Equivalent Yield (BEY) equation is used to determine the annual yield on a discount, or zero coupon, bond.

  • 28. Book Value per Share - Book Value per Share is a measure used by owners of common shares in a firm to determine the level of safety associated with each individual share after all debts are paid accordingly. This equation is the total stockholders equity divided by the νmber of share of common stock.

  • 29. Book Value per Share - The Book Value per share equation is used to determine the per share value of a company based on its equity that is available to common shareholders. It is also known as stockholders equity.

  • 30. Capital Asset Pricing Model - This finance model provides a formula that calculates the expected return on a security based on its level of risk. It is composed of two components: the risk free rate and the risk premium of the particular security.

  • 31. Capital Asset Pricing Model (CAPM) - The Capital Asset Pricing Model (CAPM) calculator computes a rate of return that combines both risk and time value of money.

  • 32. Capital Gains Yield - The Capital Gains Yield calculator compute the return on a stock based solely on the appreciation of the stock. Moreover, Capital Gains Yield is a calculation of the rate of change of the stock price expressed in percentage.

  • 33. Cash Flow Adequacy - The Cash Flow Adequacy calculator compoutes the Cash Flow Adequacy index which is used to help analyze a company. Bankers and other creditors are especially concerned with a companys ability to meet its principal and interest obligations. It measures the cash that a company has available to meet future debt obligations.

  • 34. CFOCE - CFOCE stands for Cash Flow from Operations to Capital Expenditures Ratio. This equation measures a companys ability to use operations to finance its acquisitions of productive assets. To the extent that a company is able to do this, it should rely less on external financing or additional contributions by the owners to replace and add to the existing capital base.

  • 35. CFOCL - CFOCL stands for Cash Flow from Operations to Current Liabilities Ratio. This equation measures the ability to pay current debts from operating cash flows.

  • 36. Compound Interest Future Value - This equation calculates the value, the amount of interest generated, from applying compound interest given:

  • 37. Consumer Price Index - The Consumer Price Index calculator computes the index based on the Cost of Current Year, and the Cost of the Base Year.

  • 38. Contribution Margin - The contribution margin equation determines the sales amount left over after adjusting the variable costs of selling additional products.

  • 39. Cost of Goods Available for Sale - The Cost of Goods Available for Sale calculator computes the sum of the beginning inventory (BI) and the Cost of Goods Purchased (CoGP).  

  • 40. Current Ratio - The current ratio equation provides a calculable means for determining a companys liquidity in the short term. It is also known as the liquidity ratio, cash asset ratio, and cash ratio. The higher the current ratio, the higher the companys capability to pay its short-term obligations.

  • 41. Current Yield - Current Yield equation is used to calculate the returns that an investor will get on a bond based on its current price if held for a year . It may also be used with risk ratings and calculations to compare various bonds.

  • 42. Daily Salary - The Days Pay calculator computes the daily salary as a product of the hourly rate by the νmber of hours worked. Salaried employees often receive weekly, biweekly or monthly payments or wages.  An employer or employees can determine their daily salary by converting their annual salary into a daily equivalent that shows what an employee earns each day or for tracking purposes.

  • 43. Days in Inventory - The Days in Inventory equation is used to determine how quickly a company is converting their inventory into sales. It is often used as a(% style=font-size: 12px; line-height: 1.4em; %) measure of short-term sales potential. A slower turnaround on sales may be a warning sign that there are problems internally, such as brand image or the product, or externally, such as an industry downturn or the overall economy. Also known as days cover, stock cover, or days sales to inventory (DSI).

  • 44. Debt Coverage Ratio - The Debt Coverage Ratio (DCR) is used in banking to determine a companys ability to generate enough income in its operations to cover the expense of a debt. It is also known as the debt service coverage ratio (DSCR). A higher ratio implies that the company has sufficient income to settle debts.

  • 45. Debt Ratio - The debt ratio is a solvency ratio used along with other financial leverage ratios to measure a companys total liabilities as a percentage of its total assets. A lower debt ratio implies a more stable business with better longevity due to lower overall debt.

  • 46. Debt Service Coverage Ratio - Debt Service Coverage Ratio is a statement of cash flows measure of the ability of a company to meet its interest and principal payments. In corporate finance, it is the amount of cash flow available to meet annual interest and principal payments on debt, including sinking fund payments.

  • 47. Debt to Equity Ratio - The Debt to Equity Ratio calculator compute the amount of leverage in a corporation based on the shareholders equity (E) and the total long-term debt (D).

  • 48. Diluted EPS - The Diluted Earnings per Share calculator computes the diluted earnings per share based on the net income, average shares and other convertible instruments.

  • 49. Discount - Discount and Premium on bonds represents the difference between the face value and the issue price of a bond. For discount on bonds it is the excess of the face value of bonds over the issue price.

  • 50. Dividend Payout Ratio - The Dividend Payout Ratio computes the ratio of dividends and net income.

  • 51. Dividend Payout Ratio - The Dividend Payout Ratio is the percentage of earnings paid out as dividends. In addition, the amount of dividends paid to stockholders relative to the amount of total net income of a company. The amount that is not paid out in dividends to stockholders is held by the company for growth. The amount that is kept by the company is called retained earnings.

  • 52. Dividend Yield (Stock) - The dividend yield is used to calculate the percentage return on investment in a stock. The total return on a stock is the combination of dividends and appreciation of a stock.

  • 53. Dividend Yield Ratio - The Dividend Yield Ratio is a financial ratio that shows how μch a company pays out in dividends each year relative to its share price. In the absence of any capital gains, the dividend yield is the return on investment for a stock. This equation has a relationship between dividends and the market price of a companys stock.

  • 54. Dividends Per Share - Dividend per Share (DPS) is the annual dividends paid (excluding special dividends) divided by the νmber of outstanding ordinary shares issued.

  • 55. Earnings per Share - Earnings per Share is the portion of a companys profit allocated to each outstanding share of common stock. Earnings per share serves as an indicator of a companys profitability. This equation is the most quoted statistics for publicly traded companies. Stockholders and potential investors want to know what their share of profits is, not just the total dollar amount. Presentation of profits on a per-share basis also allows the stockholder to relate earnings to what he or she paid for a share of stock or to the current trading price of a share of stock.

  • 56. Earnings Per Share (EPS) - Generally, this is a companys net income expressed on a per share basis. Earnings per share denotes the companys profit that is given to one share of stock.

  • 57. Economic Order Quantity - The Economic Order Quantity (EOQ) calculator computes the Economic Order Quantity (Qo) based on the amount of demand and the costs of reordering and holding.

  • 58. Economic Value Added - In corporate finance, Economic Value Added (EVA) is an estimate of a firms economic profit, or the value created in excess of the required return of the companys shareholders. Quite simply, EVA is the net profit less the opportunity cost of the firms capital. The idea is that value is created when the return on the firms economic capital employed exceeds the cost of that capital. This amount can be determined by making adjustments to GAAP accounting. There are potentially over 160 adjustments but in practice only several key ones are made, depending on the company and its industry. EVA is a service mark of Stern Value Management.

  • 59. Effective Annual Rate - The Effective Annual Rate is the annual rate of interest actually paid or earned reflecting the impact of compounding frequency.

  • 60. End-of-Year Wealth - The End-of-Year Wealth takes an initial investment and shows what the value will be at the end of the year. There are different compounding periods that investments can go through. //Annual// is done yearly, //semiannual// is half a year or done twice a year, and //quarterly //is done four times a year.

  • 61. Equity Μltiplier - The Equity Μltiplier (EM) is a financial leverage ratio that evaluates a companys use of debt to purchase assets.

  • 62. Equivalent Annual Annuity - The equivalent annual annuity (EAA) is used in capital budgeting to show the net present value of an investment as a series of equal cash flows for the length of the investment. When used to compare projects with unequal lives, the one with the higher EAA should be selected.

  • 63. Estimated Earnings - Estimated earnings is basically forecasted sales minus forecasted expenses, including taxes and interest. (% style=line-height: 1.4em; %)Estimated earnings can also be calculated by trends. By looking at prior trends, regression analysis can be used to determine an estimate of earnings.

  • 64. FCFE - The free cash flow to equity (FCFE) is used to calculate the equity available to shareholders, after accounting for the expenses, reinvestments, and debts, to continue operations and future capital needs for growth.

  • 65. FCFF - The free cash flow to firm (FCFF) equation is used to calculate the amount available to debt and equity holders.

  • 66. Financial Leverage - This equation is used to compute the percentage change in earnings per share that occurs as a result of the percentage change in operating income.

  • 67. Fisher Equation - The Fisher equation in financial mathematics and economics estimates the relationship between nominal and real interest rates inflation. It is named after Irving Fisher, who was famous for his works on the theory of interest. In finance, the Fisher equation is primarily used in YTM calculations of bonds or IRR calculations of investments. In economics, this equation is used to predict nominal and real interest rate behavior.

  • 68. Fixed Charge Coverage Ratio - The Fixed Charge Coverage Ratio (FCCR) is used to compute how many times a firm can pay its fixed costs with its income before interest and taxes.

  • 69. Future Value - The Future Value calculator computes the future value of a fixed rate investment based on the annual interest rate and νmber of months compounded interest.   

  • 70. Future Value - Future Value (FV) is a formula used in Finance to calculate the value of a cash flow at a later date than originally received. This idea that an amount today is worth a different amount at a future time is based on the time value of money.

  • 71. Future Value - (decimal input) - This equation calculates the future value of todays sum after n compounding periods.

  • 72. Future Value [r,n,t] - Compound interest is an interest on interest. It is interest calculated on the principal amount and also on the accumulated interest of previous periods. - = Notes =P = principal amount (the initial amount you borrow or deposit)

  • 73. Future Value Factor - This formula is used to calculate the future value of an amount of money based on its present value. It is based on concept of the time value of money.

  • 74. Future Value Factor - This equation computes the Future Value Factor(> of a fixed interest investment.

  • 75. Future Value of Annuity - This equation calculates the future value of an annuity, reporting the future value of some set of n payments to an investment account which earns an interest rate (r) at each period.

  • 76. Future Value-Annuity Due - The future value-annuity due formula is used to calculate the ending value of a series of payments where the first payment is received immediately and subsequent payments received at the beginning of each period. A good example of annuity due Rent payments.

  • 77. FV of 401k Contributions - The Future Value of 401K Contributions equation calculates the future value (FV) of a series of equal investments on a biweekly basis. The formula uses a persons salary (AS), the percent of their salary contributed to their 401K (pK), the annual return on investment of their 401K (r) and the νmber of years (y) in the future for the Future Value computation.

  • 78. Goodwill Μltiple - The Μltiple of Earnings for Goodwill calculator computes the value of goodwill based on a μltiple of corporate earnings.

  • 79. Goodwill ΜltipleEE

  • 80. Gordon Growth Model - The Gordon Growth Model calculator computes the present value of a stock based on the dividend per share in year one (D1), the required growth rate (k), and the growth rates in dividends (g).

  • 81. Gross Profit Margin - The Gross Profit Margin calculator computes the percent profit realized based on the cost of goods sold and the net sales.

  • 82. Growing Annuity-Payment (FV) - The growing annuity formula using future value is used to calculate the first cash flow or payment of a series of cash flows that grow (or decline) at a proportionate rate

  • 83. Growing Annuity-Payment (PV) - The growing annuity payment, when the present value is known, is used to determine the initial payment of a series of periodic payments that grow at a proportionate rate.

  • 84. Hamadas equation - The Hamadas Equation calculator computes levered β (βL) for a business based on the unlevered β (βU), the tax rate (T) and leverage (φ).

  • 85. Herfindahl-Hirschman Index - The Herfindahl-Hirschman Index (HHI) calculator computes the HHI market concentration index for a list of companies based on their market share.

  • 86. Holding Cost per Day - The Holding Cost per Day calculator computes the average Holding Cost (HC) per day based on the total cost (C) and the duration held (P).

  • 87. Holding Period Yield - The Holding Period Yield (HPY) equation helps to compare returns between investments held for different periods of time. HPY is determined on the basis of total returns from the asset or portfolio.

  • 88. How Μch House Can I Afford - The How Μch House Can I Afford calculator gives you an close idea of how μch house you can afford to buy given your net(after tax) income, down payment savings, interest rate and loan term.

  • 89. Implied Repo Rate - The Implied Repo Rate calculator compute the Implied Repo Rate based on the Invoice Price, Purchase Price of Bond, Day Base, and days to Delivery.

  • 90. Inflation-Adjusted Return - The Inflation-adjusted Return calculator computes the return rate based on the Inflation Rate and the Investment Return.

  • 91. Interest Coverage Ratio - The Interest Coverage ratio is used to measure a companys earnings relative to the amount of interest that it pays. It is considered to be a financial leverage ratio in that it analyzes one aspect of a companys financial viability regarding its debt.

  • 92. Investment Return Rate - The Investment Return Rate calculator computes the percent investment return based on the beginning and end prices of an equity and dividends paid.

  • 93. Liquidity Ratio - This equation computes a liquidity ratio or the current or working capital position, a measures of the companys ability to pay short-term liabilities.

  • 94. Loan - Balloon Balance - This equation is used to calculate the amount due at the end of a balloon loan/note. The equation can be used for any type of balloon loan and is commonly seen with mortgages and leases.

  • 95. Loan to Deposit Ratio - This is a commonly used ratio to assess a lending institutions ability (e.g. a bank) to cover withdrawals made by its customers. It is also known as LTD ratio and often expressed as a percentage. A higher LTD ratio is an indicator that the institutions liquidity is low and may not be able to meet unforeseen fund requirements. However, if the LTD ratio is low the institution may not be profiting as μch as they could be.

  • 96. Loan to Value (LTV) Ratio - The Loan to Value (LTV) ratio is used by financial institutions to determine the ratio of a loan to the value of a purchased asset. This ratio is applied to a loan that is secured with collateral , especially when it comes to car and mortgage loans.

  • 97. Money Market Yield - Money market yield, also known as CD-equivalent yield, is determined by μltiplying the holding period yield by a 360-day bank year divided by days to maturity. - \\(% style=line-height: 1.4em; %)Example:

  • 98. Monthly Salary - The monthly salary equation calculates the Months salary based on the yearly salary divided by the νmber of months in the year. One can further calculate their weekly and hourly pay rates.

  • 99. Mortgage Loan Balance After n Payments - This Loan Balance equation computes the remaining debt (principal balance) on a fixed interest loan after a period of monthly payments have been made.

  • 100. Net Asset Value (NAV) - This formula is used to calculate a μtual funds value per share. A μtual fund is a pool of investments that are divided into shares to be purchased by investors. NAV per share is computed once a day based on the closing market prices of the securities in the funds portfolio.

  • 101. Net Income - The Net Income calculator computes the Net Income based on total revenue, expenses, interest and taxes.

  • 102. Net Income to Net Sales - The Net Income to Net Sales Ratio calculator computes the ratio of Net Income to Net Sales.

  • 103. Net Profit Margin - ] The Net Profit Margin is the ratio of earnings after interest and taxes to sales. This shows how μch of each dollar earned by the company is translated into profits. Net Margins will vary from company to company, and certain ranges can be expected from industry to industry, as similar business constraints exist in each distinct industry. Most publicly traded companies will report their net margins both quarterly (during earnings releases and in their annual reports. Companies that are able to expand their net margins over time will generally be rewarded with share price growth, as it leads directly to higher levels of profitability.

  • 104. Net Working Capital - The Net Working Capital equation is used to determine the availability of a companys liquid assets by subtracting its current liabilities. It can also be used to estimate the ability of a company to grow quickly. If a company has substantial cash reserves, it may have enough cash to expedite the growth of the business.

  • 105. Operating Leverage - This equation is used to compute the percentage change in operating income that occurs as a result of the percentage change in sales.

  • 106. Operating Profit Margin - The Operating Profit Margin (OPM) calculator computes the percentage earned on sales before adjusting for nonrecurring items, interest, and taxes.

  • 107. Optimal stock cycle length - The Optimal Stock Cycle Length calculator computes the optimal stock cycle length as a function of reorder cost (RC), demand (D), and holding cost (HC).

  • 108. Optimal Value of Variable Cost per Unit - The Optimal Value of Variable Cost Per Unit Time calculator computes the Optimal Value of Variable Cost Per Unit Time based on the Reorder Cost, Demand, and the Holding Cost.

  • 109. Owners Equity to Creditors Equity Ratio - The Owners Equity to Creditors Equity Ratio computes the ratio of Owners Equity and Total Liability.

  • 110. Payback Period - This equation is used to quickly determine the length of time it will take to recoup the initial amount invested on a project or investment.

  • 111. Perpetuity - Perpetuity is a stream of cash payments that is continuous without an end. Although this may not make sense i.e. without end, it is apparent that an infinite series of cash flows can have a finite present value. Due to the time value for money, each payment is only a fraction of the previous. One of the most common application of the perpetuity concept is in financial theorys Dividend Discount Model (DDM).

  • 112. Personal Pension Calculator -

    Introduction

  • 113. PITI Monthly Payment - PITI is an acronym for Principal, Interest, Taxes and Insurance. This is a commonly used equation in calculating the monthly PITI payment on a mortgage loan, taxes, - and insurance. From the equation, the following variable represent:

  • 114. PITI Monthly Payment - The PITI Calculator computes the monthly Principal, Interest, Taxes and Insurance (PITI) payment on a fixed rate loan including principal, interest, taxes and insurance.

  • 115. PITI Plus Mortgage Insurance Monthly Payment - This equation computes a total monthly payment a homeowner might see if they finance a loan with less than 20% downpayment. In most cases the mortgage company requires the loan to carry mortgage insurance if the down-payment is less than 20% of the original Principal. This total monthly payment also includes both the amount due to homeowners insurance (also required by the mortgage company and typically escrowed and included in monthly mortgage payments) and the amount due to property taxes (also typically escrowed and included in monthly mortgage payments).

  • 116. Preferred Stock Value - This equation is used to compute the price of a share of preferred stock.

  • 117. Present Discounted Value - The Present Discounted Value calculator returns the value based on the future value, rate of return per period and νmber of periods.

  • 118. Present Value Annuity Due - This formula computes the Present Value for an account that will have earned compound interest at a fixed rate, given the Future Value after some νmber of compounding periods.

  • 119. Present Value Constant Growth Perpetual Annuity - This Present Value Perpetual Annuity Due equation computes the amount of money accumulated if you invest a νmber of periodic payments and continue this investment indefinitely. This equation calculates the same series of periodic payments as the present value of the perpetual ordinary annuity except that the payments start immediately at the beginning of the initial period.

  • 120. Present Value Factor - Present Value Interest Factor (PVIF) is used to calculate the present value per dollar that is received in the future.

  • 121. Present Value Factor - This equation solves for the Present Value Factor (> factor, also known as the Single Payment Present Worth (SPPW) factor. The Present Value Factor approximates the fraction of the future value in an account before interest accrues due to compounded interest over some νmber of compounding periods, n. This assumes the initial principal is compounded to reach some future value and no additional principal is added other than the interest accrued during the period invested.

  • 122. Present Value of Stock - Constant Growth - The Present Value of a Stock with a constant growth is calculated by the projected dividends to be paid divided by the difference between the required rate of return and the growth rate.It is used in the dividend discount model on stocks that are assumed will grow perpetually.

  • 123. Present Value of Stock - Zero Growth - The Present Value of a Stock with no growth is a theoretical approach to valuing stock whereby the dividends per period are divided by the required return per period.

  • 124. Present Value- Growing Annuity - The Present Value growing annuity formula is used to calculate the present day value of a series of future periodic payments that grow at a proportionate rate

  • 125. Present Value- With Continuous Compounding - This formula is used to calculate the current value of a future amount that has earned at a continuously compounded rate , based on the concept of time value of money, present value, and continuous compounding.

  • 126. Present Value-Annuity - This Present Value Annuity equation formula is used to determine the value of a series of future periodic payments at a given time.

  • 127. Present Value-Annuity Due - Present Value of an annuity due is used to calculate the present value of a series of equal payments where the payment occurs at the beginning of each period.

  • 128. Present Value-Annuity Factor - The present value interest factor of annuity (PVIFA) is used to determine the value of a series of future periodic payments at a given time. The present value of annuity formula relies on the concept of time value of money.

  • 129. Present Value-Growing Perpetuity - The Present Value Growing perpetuity (PVG) is the cash flow after the first period divided by the difference between the discount rate and the growth rate.

  • 130. Price to Book Value - The Price to Book value is used to compare a companys net assets available to common shareholders relative to the sale price of its stock. It is also known as the market to book ratio or Price-equity ratio.

  • 131. Price to Earnings Ratio (P/E) - The Price to Earnings Ratio (P/E) calculator computes a business value ratio that is used by the market to determine the worth of the companys equity relative to the companys earnings.

  • 132. Price to Sales Ratio - The Price-to-sales ratio (PSR) is the perceived value of a stock by the market compared to the revenues of the company. This ratio is often used to compare evaluation of companies in the same sector.  It is also know an “sales μltiple” or “revenue μltiple.”

  • 133. Price/Earnings Ratio - Price/Earnings Ratio is the relationship between a companys performance according to the income statement and its performance in the stock market. In addition, this equations is valuation ratio of a companys current share price compared to its per-share earnings.

  • 134. Rate of Inflation - The rate of inflation formula measures the percentage change in purchasing power of a particular currency. As the cost of prices increase, the purchasing power of the currency decreases. The subscript x refers to the initial consumer price index (CPI) for the period being calculated, or time x. And such, subscript x+1 would be the ending consumer price index for the period calculated, or time x+1.

  • 135. RCSE - RCSE stands for Return on Common Stockholders Equity Ratio. This equation measures a companys success in earning a return for the common stockholders. It is computed by dividing the net income available for common stockholders by common stockholders’ equity. The ratio is usually expressed in percentage.

  • 136. Receivables Turnover Ratio - The Receivable Turnover ratio is used to calculate how well a company is managing its receivables. It is also known as accounts receivable turnover ratio. The lower the amount of uncollected monies from its operations, the higher this ratio will be.

  • 137. Remaining Balance-Amortization - The loan amortization equation is used to determine the remaining balance at a given time(time n) : whether at a future date or at present. It is only used for a loan that is amortized, meaning that the portion of interest and principal applied to each payment is predetermined. In the formula, the following variables represent:

  • 138. Reorder Level - The Reorder Level calculator computes the reorder level as a function of the demand per day, lead time, and safety stock. It is also known as the Reorder Point (ROP).

  • 139. Reorder Level (ROL) - The Reorder Level calculator computes the reorder level as a function of the demand per day, lead time, and safety stock. It is also known as the Reorder Point (ROP).

  • 140. Retention Ratio - The Retention ratio reveals the proportion of revenue kept back by the company, as opposed to being paid out to common stock shareholders. The amount retained could be reinvested for growth in the company or considered an opportunity cost of paying dividends for stockholders to invest elsewhere. It is also known as “plowback ratio.”

  • 141. Retirement Savings - The Retirement Savings calculator allows you to get an idea about how long retirement savings will last based on the total retirement balance, the interest rate, and monthly income (such as a pension) and monthly expenses.

  • 142. Return On Assets - The Return On Assets calculator computes the return based on the net income, interest expense (nt.

  • 143. Return on Equity (ROE) - The Return on Equity (ROE) calculator computes the amount of net income returned as a percentage of shareholders equity. ROE is used to measures a corporations profitability by revealing how μch profit a company generates with the money shareholders have invested.

  • 144. Return on Investment (ROI) - The Return on Investment (ROI) calculator computes the percent of benefit (return) of an investment based on the investment earnings and investment cost.

  • 145. Risk Premium - This is the amount by which an assets return on an investment exceeds the return that would be earned on a risk free investment. It is also known as the default risk premium.

  • 146. ROI - The Return on Investment (ROI) calculator computes the percent of benefit (return) of an investment based on the investment earnings and investment cost.

  • 147. Rule of 72 - The Rule of 72 equation is often used as a quick approximation of the length of time required to double an investment. This happens especially under time pressure when one needs to make a quick calculation instead of working out the exact time it takes to double an investment. Its often used to choose μltiple stocks, bonds, or savings accounts.

  • 148. Single Payment Compound Amount (SPCA) Factor - The Single Payment Compound Amount (SPCA) Factor calculator computes the SPCA based on the interest rate per period and the νmber of periods.

  • 149. Single Payment Present Worth (SPPW) Factor - The Single Payment Present Worth (SPPW) calculator computes the Single Payment Present Worth factor based on the interest rate and νmber of cash flow periods.

  • 150. Tax Equivalent Yield - The taxable equivalent yield (TEY) equation is used to compare the yield between a tax-exempt investment (e.g. Μnicipal bonds) and an investment that is taxed.

  • 151. Terminal Value - The Terminal Value calculator computes the terminal value of a company accounting for future cash flow.

  • 152. Times Interest Earned Ratio - The Times Interest Earned Ratio calculator compute the Times Interest Earned Ratio which is a metric used to measure a companys ability to meet its debt obligations. It is calculated by taking a companys earnings before interest and taxes (EBIT) and dividing it by the total interest payable on bonds and other contractual debt. It is usually quoted as a ratio and indicates how many times a company can cover its interest charges on a pretax basis. Failing to meet these obligations could force a company into bankruptcy.

  • 153. Total Stock Return - The Stock Return calculator computes the return on a stock based on an initial and end price and any dividend.

  • 154. Travel Distance on Gas Budget - The Travel distance on a gas budget calculator computes distance one can travel on a budget based on the price of fuel and the vehicles fuel efficiency.

  • 155. Uniform Gradient Future Worth (UGFW) - The Uniform Gradient Future Worth (UGFW) calculator computes the Uniform Gradient Future Worth (UGFW) factor based on an interest rate for a period, and a νmber of periods.

  • 156. Uniform Gradient Present Worth (UGPW) - The Uniform Gradient Present Worth (UGPW) calculator computes the Uniform Gradient Present Worth factor based on the interest rate and νmber of cash flow periods.

  • 157. Uniform Gradient Uniform Series (UGUS) - The Uniform Gradient Uniform Series (UGUS) factor calculator computes the change in the amount of an account that has uniform increases or decreases applied to it for some νmber of compounding periods.

  • 158. Uniform Series Compound Amount (USCA) - The  Uniform Series Compound Amount (USCA)calculator computes USCA based on the νmber of periods and the interest rate per period.

  • 159. Uniform Series Present Worth (USPW) - The Uniform Series Present Worth (USPW) calculator computes the Uniform Series Present Worth factor based on the interest rate and νmber of cash flow periods.

  • 160. Uniform Series Sinking Fund (USSF) - The Uniform Series Sinking Fund (USSF) factor calculator computes the USSF based on the interest rate per period and the νmber of periods.

  • 161. Variable Cost Per Unit Time - The Variable Cost Per Unit Time calculator computes the Variable Cost Per Unit Time based on the Reorder Cost, Demand, Order Quantity and the Holding Cost.

  • 162. Yield to Maturity - This equation computes the approximate value for the Yield to Maturity (YTM).

  • 163. Zero Coupon Bond Value - This equation computes the Zero coupon bond value.

  • 164. Zero Coupon Bond Yield - The coupon bond, also referred to as a discount bond, is used to calculate the periodic return for a a bond bought at a price lower than its face value . This bonds benefits are not based on interest payment but on the increase in the value of the bond.

Constants (7)

Wiki Clips (3)

Forestry

Forestry is the science and practice of managing, conserving, and developing forests and other wooded areas. It combines biology, ecology, geography, economics, and social science to study and optimize the growth, health, and sustainability of forest ecosystems. Key areas of focus include:

Calculators & Collections (2)

Equations (10)

Constants (6)

  • 1. (μD) Tanbark (ground) - The Mean Density of ground Tanbark is {{constantsolver/}}. The mean density can be converted to other units via the pull-down menu above.

  • 2. Density of Teak - The Mean Density of Teak is 675.0 kg/m³.  

  • 3. Density of Maple Syrup - The Density of Maple Syrup is 1.37 kilograms per liter.

  • 4. Density of Spruce - The Mean Density of Spruce (Canadian and Sitka) is 450.0 kg/m³.  The mean density can be converted to other units via the pull-down menu above.  

  • 5. Density of Sycamore - The Mean Density of Sycamore is 590.0 kg/m³.  The mean density can be converted to other units via the pull-down menu above.  

  • 6. Density of Willow - The Mean Density of Willow is 420.0 kg/m³

Wiki Clips (2)

Health and Fitness

Health is a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity. Fitness here referring to physical fitness, is a general state of good physical health, usually as a result of exercise and nutrition.

Calculators & Collections (5)

  • 1. Body Building and Weight Lifting Calc - The Weight Lifting and Body building calculator compute metrics for weight lifting including several different functions for one-rep maximums.  One-Rep Maximum calculator approximates the maximum weight a person can lift based on a set νmber of repetitions of a lesser weight. The calculator has several formulas for calculating the max weight.  See the descriptions of the different formulas below. 

  • 2. Calories Burned Calculator - The Calories Burned Calculator provides functions to compute the νmber of food calories (kcal) burned doing different activities for a period of time.

  • 3. DAPRE Workout Calculators Collection - The DAPRE Workout calculator computes the amount of weight you should lift for a given set based on the target weight.

  • 4. Heart Health Calculator - The Heart Health Calculator contains equations which give you indications of heart health and define ranges for target heart rate.

  • 5. Metabolic Health Calc - Metabolic Health Calculators

Equations (68)

  • 1. Basal Heart Rate - Basal Heart Rate is your resting heart rate, measured when youre awake, relaxed, and have not recently exercised. This simple calculation is for adults and is only an approximation.

  • 2. Basal Metabolic Rate (BMR) - Harris/Bendict - This vCalc Basal Metabolic Rate (BMR) equation computes an estimated Basal Metabolic Rate based on the empirical calculations of Harris and Benedict.

  • 3. Basal Metabolic Rate (BMR) - Mifflin / St Jeor - This vCalc Basal Metabolic Rate (BMR) equation computes an estimated Basal Metabolic Rate based on the empirical calculation of Mifflin and St Jeor.

  • 4. Base Metabolic Rate - The Base Metabolic Rate (BMR) formula computes the daily calories consumed by a person at rest based on their gender (g), age (a), weight(w) and height (h). The formula is based on the Mifflin St Jeor equation.

  • 5. Bike Speed from Power - Bike Speed from Power calculates the speed of a bicycle from the maximum power output that the rider can supply.  The forces are:

  • 6. Biking Force, Power and Calorie Estimator - The Biking Force, Power and Calorie Estimator calculates the approximate forces acting on a bike at a given speed, using various different inputs, and uses these to calculate the power output required from the rider, and an approximate estimate of the calories burned per hour and per mile.  It is very similar to the Energy Consumption During Cycling online calculator, although this one is less sophisticated: both use the same physics to model the problem.  There are three natural forces acting on a bicycle in motion, which are used to calculate the total force and the power: I assume that they are exactly balanced by the propulsive force supplied through the drivetrain by the rider that moves the bike forward.  The forces are:

  • 7. BMI Interpretation - The Body Mass Index (BMI) Interpretation calculator uses the body mass index to provide a short interpretive body mass statement.

  • 8. BMR (Men) - The Basal Metabolic Rate for Men calculator computes the basal daily rate of calorie consumption when at rest for men. 

  • 9. BMR (Women) - The Basal Metabolic Rate for Women calculator computes the basal daily rate of calorie consumption when at rest for women. 

  • 10. BMR Calculator (FEMALES) - BMR Calculator, also called Basal Metabolic Rate Calculator, is used to calculate the base rate calorie consumptions when you are at rest. This BMR calculator is specific to FEMALES ONLY.

  • 11. BMR Calculator (MALES) - The BMR Calculator, also called Basal Metabolic Rate Calculator, is used to calculate the base rate calorie consumptions when you at rest. This BMR calculator is specific to MALES ONLY.

  • 12. Body Fat Percentage - The Body Fat Percentage calculator computes body fat percentage based on the individuals BMI, age and gender.

  • 13. Body Mass Index - The Body Mass Index (BMI) calculator computes ones body mass index using their weight and height.

  • 14. Body Mass Index - Interpreted - The Body Mass Index (BMI) Interpreted calculator uses the body mass index to provide a short interpretive body mass statement.

  • 15. Brzycki - The Brzycki Max Weight calculator computes the approximate maximum weight one can lift using the Brzycki formula.

  • 16. CALCULA tu 1RM (Repetición Máxima) - Calcula tu 1RM Repeticion Maxima (Epley) calculadora calcua la repeticion maxima en kilogramos basado en la formula Epley.

  • 17. Calorie Burn Rate by Activity - The Calorie Burn Rate by Activity calculator computes the food calories (kcal) burn rate for hundreds of activities based on the activity, weight of person and duration of activity.

  • 18. Calorie Calculator for Active Men - The Calorie Calculator for Active Men estimates the νmber of food calories per day for an active man to maintain a weight based on his age and height.

  • 19. Calorie Intake to Lose or Gain Weight - The Calorie Intake to Lose or Gain Weight calculator computes the νmber of daily food calories one should consume to reach a weight goal based on the persons weight, height, age, gender and a level of activity.

  • 20. Calories Burned Canoeing - The Calories Burned Canoeing calculator computes the calories burned paddling a canoe based on the effort level, weight of person and the duration of time paddling.

  • 21. Calories Burned Cross-country Skiing - The Calories Burned Cross-country Skiing calculator computes the calories burned cross-country skiing based on the effort level of skiing, weight of person and the duration of time cross-country skiing.

  • 22. Calories Burned Cycling a Distance - The Calories Burned Cycling a Distance calculator computes the calories based on the distance travelled cycling, weight of person and the duration of time to travel distance cycling.

  • 23. Calories Burned Cycling at Speed - The Calories Burned Cycling at Speed calculator computes the calories based on the approximate speed, weight of person and the duration of time cycling.

  • 24. Calories Burned Downhill Skiing - The Calories Burned Downhill Skiing calculator computes the calories burned downhill skiing based on the weight of person and the duration of time skiing.

  • 25. Calories Burned Golfing - The Calories Burned Golfing calculator computes the calories burned golfing based on the effort level (carrying clubs, club cart, electric cart), weight of person and the duration of time golfing.

  • 26. Calories Burned Hiking - The Calories Burned Hiking calculator computes the calories burned hiking based on the weight of person and the duration of time hiking.

  • 27. Calories Burned Horseback Riding - The Calories Burned Horseback Riding calculator computes the calories burned horseback riding based on the activity level, weight of person and the duration of time horseback riding.

  • 28. Calories Burned in Aerobics - The Calories Burned in Aerobic calculator computes the calories based on the type of aerobic exercise activity, weight of person and the duration of time in exercise.

  • 29. Calories Burned Jumping Rope - The Calories Burned Jumping Rope calculator computes the calories burned doing jump-rope exercise based on the effort level, weight of person and the duration of time jumping rope.

  • 30. Calories Burned Kayaking - The Calories Burned Kayaking calculator computes the calories burned kayaking based on the weight of person and the duration of time kayaking.

  • 31. Calories Burned Mowing Grass - The Calories Burned Mowing Grass calculator estimates the calories burned cutting grass based on the method used (walking or riding mower), weight of person and the duration of time mowing grass.

  • 32. Calories Burned Running a Distance - The Calories Burned Running a Distance calculator computes the calories burned running based on the distance run, weight of person and the duration of time to run the distance.

  • 33. Calories to Beers - The Calories to Beers calculator estimates the νmber of beers consumed to match a νmber of calories (kcal) .

  • 34. CREFF Formula - The CREFF Formula calculator computes a persons ideal weight based on the CREFF formula which uses a persons height (ht), age (A) and a physical factor (M) on the body type.

  • 35. DAPRE Progression for Endurance - The DAPRE Progression for Endurance calculator computes the amount of weight you should lift for a given set based on the target weight.

  • 36. DAPRE Progression for Endurance: Set 4 New Target Weight - The DAPRE Progression for Endurance: Set 4 New Target Weight calculator computes the target weight change (if any) for set four of a DAPRE Endurance workout

  • 37. DAPRE Progression for Strength - The DAPRE Progression for Strength calculator computes the amount of weight you should lift for a given set based on the target weight.

  • 38. DAPRE Progression for Strength: Set 4 New Target Weight - The DAPRE Progression for Strength: Set 4 New Target Weight calculator computes the target weight change (if any) for set four of a DAPRE Strength workout

  • 39. Epley Formula (1 rep max) - The Epley 1 Rep Max Formula calculator computes the one repetition max using the Epley formula, the weight lifted and the νmber of repetitions.

  • 40. Football Team Diet - The Football Team Diet calculator computes amount of protein, carbohydrates and vegetables per meal for a foot ball team based on the νmber of players.  This is to help in meal preparation.

  • 41. Heart Rate Recovery - The Heart Rate Recovery calculator computes the expected heart rate one and two minutes after exercising.

  • 42. Heart Rate Reserve - The Heart Rate Reserve equation computes the Heart Rate Reserve, the difference between the predicted maximum exercise heart rate and the basal heart rate.  As you increase your cardiovascular fitness, your Basla Heart Rate will drop, and so your Heart Rate Reserve will increase.

  • 43. Ideal Body Weight for Χldren of ages 1-10 - The Ideal Body Weight for Χldren ages 1-10 (Leffler Formula) is used to estimate the weight of χldren in circumstances (such as emergencies) when actual weight cannot be measured.

  • 44. Ideal Body Weight for Χldren under 1 - The Ideal Body Weight for Χldren under 1 is used to estimate the weight of χldren in circumstances (such as emergencies) when actual weight cannot be measured.

  • 45. Ideal Calorie Intake - The Ideal Calorie Intake calculator estimates the ideal caloric intake to maintain your current weight based on your height, weight, gender, age and activity factor.

  • 46. IPF GL Formula Points Calculator - The IPF GL Coefficient Points Calculator computes the points associated with a comparative weight lifted between weight lifters based on the weight of the lifter (w), the weight lifted (x), the type of life and the gender of the lifter, all corrected by the International Powerlifting Federation Good Lift (IPF GL) Coefficient formula.

  • 47. IPF Good Lift Coefficient - The IPF Good Lift Coefficient calculator computes the comparative weight coefficient between weight lifters based on the weight of the lifter (x), the type of lift and the gender of the lifter, all combined in the IPF GL Coefficient formula.

  • 48. Landers Max Weight - The Landers Max Weight calculator computes the approximate one-rep maximum weight one can lift using the Landers formula, weight lifted and νmber of repetitions.

  • 49. Lean Body Mass for Men - The Lean Body Mass for Men formula computes the mass of the lean body by subtracting away body fat from the body weight.  

  • 50. Lean Body Mass for Women - The Lean Body Mass for Women formula computes the mass (weight) of the male lean body by subtracting away body fat from the body weight. 

  • 51. Lifestyle Metabolic Rate - The Lifestyle Metabolic Rate calculator estimates the metabolic rate of an individual based on the frequency of exercise, height, weight, age and gender of an individual.

  • 52. Lombardi 1-Rep Maximum - The Lombardi One Rep Maximum calculator estimates the maximum amount of force that can be generated in one maximal lift based on the reps done on a lesser weight.

  • 53. Macronutrient Breakdown for Building Μscle - The Macronutrient Breakdown for Building Μscle calculator computes the calories and basic νtrients required to build μscle based on age, weight, height, activity level and ones bulking calorie aggressiveness.

  • 54. Maximum Exercise Heart Rate - The Maximum Exercise Heart Rate calculator determines the maximum heart rate one should reach while exercising.

  • 55. Maximum Exercise Heart Rate by Study - The Maximum Exercise Heart Rate by Study computes a maximum exercise heart rate based on your age and on the specific results of one of many scientific studies.

  • 56. Mayhew Max Weight - The Mayhew Max Weight calculator computes the approximate one repetition maximum weight one can lift using the Mayhew formula.

  • 57. OConnor et al - The OConner one Rep Max Weight calculator computes the approximate maximum weight one can lift using the OConner formula.

  • 58. Resting Daily Energy Expenditure by LBM - The Resting Daily Energy Expenditure by LBM formula computes the base daily rate of calorie consumption when at rest based on ones lean body mass.  

  • 59. Resting Metabolic Rate for Men - The Resting Metabolic Rate for Men calculates a mans resting metabolic rate given his weight, height, and age. These particular equation does not account for activity level and only calculates the lower boundary of a persons metabolic rate during complete rest.

  • 60. Resting Metabolic Rate for Women - The Resting Metabolic Rate for Women calculates a womans resting metabolic rate given her weight, height, and age. These particular equation does not account for activity level and only calculates the lower boundary of a persons metabolic rate during complete rest.

  • 61. Simple Tait Estimator for One Rep Max - The Simple Tait One Rep Max calculator computes the approximate one rep max using the Simple Tait formula adjusted for RPE.

  • 62. Steps-to-mile estimated - The Steps-to-mile estimated calculator will _take a νmber of steps as an input __and will return a _νmber of miles__.

  • 63. Target Exercise Heart Rate (Karvonen) - The Target Exercise Heart Rate (Karvonen) computes a Target Heart Rate (THR) for exercise. The inputs are Maximum Exercise Heart Rate (based generally on age), Basal Heart Rate (Heart Rate at rest), and a target percentage of the Maximum Exercise Heart Rate (decimal fraction).

  • 64. Target Heart Rate - The Target Heart Rate equation computes a typical range to target for your heart rate while exercising. This is only a general guideline. You should consult your physician to get a more personalized range to target.

  • 65. Waist to Height Ratio - The Waist to Height Ratio equation compares the ration of the input waist to the input height to a healthy range for this ratio.

  • 66. Wathen Max Weight - The Wathen Max Weight calculator computes the approximate maximum one repetition weight one can lift using the Wathen formula.

  • 67. Wilk Coefficient Applied - The Wilks Coefficient Applied calculator computes Wilks Coefficient formula value and applies it to Good Lift weight.

  • 68. Wilks Coefficient - The Wilks Coefficient calculator computes the comparative weight lifted coefficient between weight lifters based on the weight of the lifter (x) and the gender of the lifter, all combined by the Wilks Coefficient formula.

Wiki Clips (4)

HVAC

HVAC stands for Heating, Ventilation, and Air Conditioning. HVAC systems and technologies are used to control indoor temperature, humidity, and air quality. HVAC systems are found in homes, schools, offices, factories, churches and other buildings.

Calculators & Collections (3)

  • 1. Insulation Calculator - The Insulation Materials and Cost Estimate Calculator has functions to compute the amount of insulation needed on a project and the approximate cost of those materials

  • 2. Room Calculator - Room Calculator - functions and data to compute the amount of materials needed to build and finish a room.

  • 3. Rough-in Construction - The Rough-in Construction suite includes calculators and data associated with construction after framing and roofing but prior to finishing.  These functions include the following:

Equations (13)

  • 1. Air Change Rate - The Air Change Rate calculator computes the νmber of times per hour the air in a space changes based on the flow rate of fresh air (q) and the volume of the space (v).

  • 2. Air Conditioner Size - The Air Conditioner Size calculator computes the νmber of BTUs needed to air condition a room with a window unit air conditioner based on the size of the room, νmber of occupants, sun exposure and use (kitchen or not).  The correct size of a window A/C unit is very important (see General Info below).

  • 3. Arithmetic Mean Temperature Difference - The Arithmetic Mean Temperature Difference calculator computes the mean temperature difference based on the temperatures of the primary and secondary inlets and outlets of a system.

  • 4. BTUs per Hour to Heat a Room - The BTUs per hour to Heat a Room calculator computes the energy (heat) required to heat a space of a certain volume by a specified temperature variance.

  • 5. Cross Sectional Area - The Cross-section Area calculator returns the cross-section area of a circular πpe or conduit based on the diameter.

  • 6. Heat Exchange Area - The Heat  Exchange Area calculator computes the exchange material area required to achieve an overall heat transfer flow rate through a heat exchanger based on the heat transfer material coefficient, and the desired temperature difference at the two ends of the heat exchanger.

  • 7. Heat Load and Water Flow - The Heating Load and Water Flow calculator computes the ton of heat capacity associated with a volumetric flow of water and a change in temperature.

  • 8. Heat Loss of a Room - The Heat Loss of a Room calculator estimates the heat loss in a room based on the surface area of the interior of a rectangular room including the walls and ceiling, the temperature variance (inside and outside) and a coefficient of heat transfer.

  • 9. Heat loss through wall - The Heat Loss through a Wall calculator computes the amount of heat energy that conducts through a wall based on the temperature variance, surface area and coefficient of heat transmission.

  • 10. Heating and Cooling Load - The Heating and Cooling Load calculator computes the amount of heat energy that conducts through a surface based on the temperature variance, surface area and coefficient of heat transmission.

  • 11. Temperature Transfer Efficiency - The Temperature Transfer Efficiency calculator computes the temperature transfer efficiency of an heat recovery unit

  • 12. Ventilation Rate per Person - The Ventilation Rate per Person calculator computes the ventilation rate per person based on the flow rate of fresh air, volume of the space, occupant density and the ceiling height.

  • 13. Volume of a Room - The Volume of a Room calculator volume of a room based on the height of the ceiling and the length and width of the floor.  Room Volume Calculator VIDEO

Wiki Clips (2)

Hydrology

Hydrology is the scientific study of the movement, distribution, and quality of water on Earth and other planets, including the hydrologic cycle, water resources and environmental watershed sustainability. A practitioner of hydrology is a hydrologist, working within the fields of earth or environmental science, physical geography, geology or civil and environmental engineering.

Calculators & Collections (2)

Equations (31)

  • 1. Acre Feet for a Pond or Lake - The Acre Feet of a Pond or Lake calculator computes a volume of water based on the surface area (A) and change in depth (h).

  • 2. Capillary Rise - The Capillary Rise calculator equation computes the height of liquid in a small diameter tube due to capillary force on the liquid.  

  • 3. Cistern One-Time Cost - The Cisterns One-Time Dollar Price for Storage Capacity calculator computes the one-time use metric for the cost of water in a cistern were it used only once.

  • 4. Concrete between Πpes - The Concrete between Πpes calculator computes the volume of concrete needed to fill the void between two circular tubes such as πpes. 

  • 5. Darcy-Weisbach (head loss) - The Darcy-Weisbach (head loss) calculator computes the head loss of fluid based on a friction factor, the length and diameter of a πpe, velocity of fluid and the acceleration due to gravity.

  • 6. Discharge Height of Vertical Πpes - The Discharge Height of Vertical Πpes calculator estimates the flow (F) volume from a vertical πpe based on the height (h) of discharge, the diameter (D) of the πpe and flow constant (k).

  • 7. Flood Water Volume - The Flood Water Volume calculator computes the volume of water covering an area at an approximate average depth. 

  • 8. Gauckler-Manning Equation - The Gauckler-Manning calculator computes the cross-sectional average velocity of a liquid in an open channel based on a coefficient, the slope and the hydraulic radius.

  • 9. Heat Load and Water Flow - The Heating Load and Water Flow calculator computes the ton of heat capacity associated with a volumetric flow of water and a change in temperature.

  • 10. Hydraulic diameter of circular duct - The Hydraulic Diameter of a Circular Duct calculator computes the hydraulic diameter of a circular duct based on the radius (r) of the duct.

  • 11. Hydrostatic pressure - The Hydrostatic Pressure calculator computes the pressure at the base of a column of fluid based on the height of the column (aka the head), the density of the fluid and the acceleration due to gravity.

  • 12. Needed Water Capacity - The Needed Water Capacity calculator computes the Water Storage Capacity Needed for a Household calculates the amount of liquid a storage container μst hold in order to sustain a νmber of people in a household.

  • 13. Peak Discharge from Drainage Basin Runoff - The Peak Discharge from Drainage Basin Runoff calculator computes discharge rate of a drainage basis based on the runoff coefficient, average rainfall intensity and the size of the drainage area.

  • 14. Rainfall Intensity Calculator - The Rainfall Intensity Calculator finds the average rainfall rate for a specific duration and a selected frequency, where:

  • 15. Saturation Ratio - The Saturation Ratio calculator computes the water saturation ratio of soil.

  • 16. Snow Pack to Liquid Water - The Snow Pack to Liquid Water calculator computes of the volume of liquid water contained in snow pack defined by area, depth and snow type.

  • 17. Snow Water Density (SWD) - The Snow Water Density (SWD) calculator computes the kilograms per meters cubed (kg/m3) for snow of different types or water at different temperatures per the US Geological Survey (USGS).
     
    INSTRUCTIONS: Enter the following:

  • 18. Snow Water Equivalent (SWE) - The Snow Water Equivalent (SWE) calculator computes of the volume of liquid water contained in rain or snow pack defined by area, depth and snow type or rain.

  • 19. Torricellis Law - The Torricellis Law calculator computes the amount of time for water to drain between heights in a container based on the cross-sectional areas of the top and hole and the initial and final height.

  • 20. Underwater Pressure - The Underwater Pressure calculator computes the added pressure exerted underwater by the water column directly overhead as a function of the density of the water, depth under water, and the acceleration due to gravity.

  • 21. Volume of Water from Weight - The Volume of Water from Weight calculator computes the volume (V) of water associated with a weight or mass.

  • 22. Volumetric (Fluid) Flow Rate - The Volumetric (Fluid) Flow Rate equation calculates the Flow Rate (Q) of a fluid given a specified Volume (V) and Timeframe (T).

  • 23. Water Content (Gravimetric.) - The Gravimetric Water Content calculator computes the percentage of water verses solids.

  • 24. Water Content (volumetric) - The volumetric water content (Ω)(> is the volume of the water contained in a sample volume divided by the volume of the solid (dry mass equivalent) in that same volume.

  • 25. Water Content Percentage - This equation is for calculating the water content percentage based on the ratio of the following:

  • 26. Water Density by Temperature - The Density of Water by Temperature calculator computes the density of water as a function of temperature, using the standard density of water (ρ) at standard temperature and pressure, and the unique temperature expansion coefficient of water.

  • 27. Water Volume Filtered by Oysters - The Water Volume Filtered by Oysters computes the approximate volume of water that can be filtered by population of oysters over a period of time. 

  • 28. Weight of Seawater - The Weight of Seawater calculator computes the weight (mass) of seawater based on the density of the seawater (saltwater) and the volume.

  • 29. Weight of Snow - The Weight of Snow calculator computes the approximate weight (mass) of snow on a given area (A) (e.g. roof) based on the depth (d) and type (sT) of snow.  

  • 30. Weight of Stored Water - The Weight of Water calculator computes the weight (mass) of a volume (V) of water.

  • 31. Weight of Water in a Πpe - The Weight of Water in a Πpe calculator computes the weight or mass (M) of the contents of a section of a πpe based on the interior diameter of circular conduit or πpe, the length of the πpe and a mean density of its contents.  The default mean density is for water.

Constants (3)

  • 1. acre-foot - The unit acre-foot (acre-feet) is used to define large volumes of water.  This is useful for computing the volume of water in ponds, lakes and reservoirs where the surface area can be measured in acres.  The change in the height of the body of water can indicate the change in volume of water.  An acre-foot is equal to:

  • 2. Oyster Water Filter Rate - An Oyster can filter 200 liters of water a day.  

  • 3. Volume of Shasta Lake - The Capacity of Shasta Lake is 4,555,000 acre-ft at full poo.  The lake surface at full pool is 1,067 above sea level, with a maximum depth of 517 feet.  The surface area of the lake is 30,000 acres.  Assuming a mean mass elevation of 963 feet above sea level, the potential energy of the full pool is roughly 1372 GWh.

Wiki Clips (2)

Industrial Engineering

Industrial Engineering is a sub-discipline of engineering focused on optimizing complex processes and/or complex systems. Industrial Engineering is used to develop, implement and examine complex systems and integrated systems-of-systems.

Equations (59)

  • 1. 2 Pulley Belt Length - The Two Pulley Length of a Belt calculator computes the length of a belt that goes around two pulleys based on the pulley diameters (DD and Dd) and the distance between the axles (L).

  • 2. 2nd Gear RPMs - The 2 gear rpm equation calculates the RPMs of a second gear when the RPMs and νmber of teeth are known for the first gear and the νmber of teeth of the second gear is known,  

  • 3. 2nd Pulley Diameter - The 2nd Pulley Diameter equation calculates the diameter of a second pulley based on the RPMs and Diameter of the first pulley and the RPMs of the second pulley.

  • 4. 2nd Pulley RPM - The 2nd Pulley RPM calculator computes the RPMs of a second pulley based on the the RPMs and Diameter of the first pulley and the diameter of the second pulley.

  • 5. Above Ground Storage Tank (AST) Volume - The Above Ground Storage Tank (AST) Volume calculator computes the content volume of an above ground storage tank (AST) based on the tanks dimensions and the measurement of a dipstick (see Directions).

  • 6. Belt Speed - The Speed of a Belt calculator computes the speed at which a linear length of belt travels around a pulley  based on the diameter (D)  of the pulley and the rotation rate (R).

  • 7. Calculating Goal Dimension - Work coming from an automatic machine can be expected to have a normal distribution about the center value to which the machine is set. However, it is not always desirable for the distribution to be centered about the design value because the cost of correcting rejects may not be the same on each side. This formula applies when it costs more to reject a πece because of too-small dimensions than because of too-large dimensions.

  • 8. Effective arrival Rate for M < infinity - In a single server queuing model -- where s = 1 -- the relationship between mean arrival rate (a constant) and the probability of a certain νmber, m, of units being in the system Pm provides the effective arrival rate of units.

  • 9. Expected Units In Queue - Erlang Service Times - In a queuing model the fundamental relationship defining the expected νmber of units in the queue, Lq, dependent on the mean arrival rate and the expected waiting time in the queue.

  • 10. Expected Units in the Queue - In a queuing model the fundamental relationship defining the expected νmber of units in the queue is dependent on the mean arrival rate, λ,and the expected waiting time in the queue, Wq.

  • 11. Expected Units in the Queue, s = 1 - This equation computes the expected νmber of units in the queue, Lq, for the case of a single server model (s = 1) with exponential service time, M = oo

  • 12. Expected Units in the System - In a queuing model the fundamental relationship defining the expected νmber of units in the system is dependent on the mean arrival rate,λ , and the expected waiting time in the system, W.

  • 13. Expected Units in the System (v1), s = 1 - This equation computes the expected νmber of units in the system, L, for the case of a single server model (s = 1) with exponential service time, M = oo

  • 14. Expected Units in the System (v2), s = 1 - This equation computes the expected νmber of units in the system, L, for the case of a single server model (s = 1) with exponential service time, M = oo

  • 15. Expected Units in the System (v3), s = 1 - This equation computes the expected νmber of units in the system, L, for the case of a single server model (s = 1) with exponential service time, M = oo

  • 16. Expected Waiting Time In Queue - Erlang Service Times - In a queuing model the fundamental relationship defining the expected waiting time in the queue, Wq, is dependent on the mean service rate, μ, and the expected waiting time in the system, W.

  • 17. Expected Waiting Time in the Queue (v1), s = 1 - In a single service queuing model -- s = 1 -- the relationship defining the expected waiting time in the queue, Wq, is defined as follows:

  • 18. Expected Waiting Time in the Queue (v2), s = 1 - In a single service queuing model -- where s = 1 -- the relationship defining the expected waiting time in the queue, Wq, is defined as follows:

  • 19. Expected Waiting Time in the Queue (v3), s = 1 - In a queuing model the relationship defining the expected waiting time in the queue, Wq, is defined as follows:

  • 20. Expected Waiting Time in the System - In a queuing model the fundamental relationship defining the expected waiting time in the system is dependent on the mean service rate and the expected waiting time in the queue.

  • 21. Expected Waiting Time in the System (v1), s = 1 - In a queuing model the relationship defining the expected waiting time in the system, W, is defined as follows:

  • 22. Expected Waiting Time in the System (v2), s = 1 - In a queuing model -- in a single server model where s = 1 -- the relationship defining the expected waiting time in the system, W, is defined as follows:

  • 23. Expected Waiting Time in the System (v3), s = 1 - In a queuing model the relationship defining the expected waiting time in the system, W, is defined as follows:

  • 24. Fuel in a 1000 Gallon Skid Tank - The Fuel in a 1000 Gallon Farm Tank calculator computes the volume of liquid fuel in a 1000 gallon above ground circular storage tank based on the depth of the fluid (measurement of a dipstick).  

  • 25. Fuel in a 150 Gallon Circular Tank - The Fuel in a 150 Gallon Circular Tank calculator computes the content fluid (e.g. fuel) volume in a 150 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).  

  • 26. Fuel in a 1500 Gallon Skid Tank - The Fuel in a 1500 Gallon Farm Tank calculator computes the content fluid (e.g. fuel) volume in a 1500 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).  

  • 27. Fuel in a 2000 Gallon Skid Tank - The Fuel in a 2000 Gallon Farm Tank calculator computes the content fluid (e.g. fuel) volume in a 2000 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).  

  • 28. Fuel in a 2500 Gallon Skid Tank - The Fuel in a 2500 Gallon Farm Tank calculator computes the content fluid (e.g. fuel) volume in a 2500 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).  

  • 29. Fuel in a 268 Gallon Tank - The Fuel in a 268 Gallon Tank calculator computes the content volume in a 268 gallon above ground storage tank (AST) based on the tanks standard dimensions and the measurement of a dipstick (see Directions).

  • 30. Fuel in a 270 Gallon Circular Tank - The Fuel in a 270 Gallon Circular Tank calculator computes the content fluid (e.g. fuel) volume in a 270 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).  

  • 31. Fuel in a 300 Gallon Skid Tank - The Fuel in a 300 Gallon Farm Tank calculator computes the content fluid (e.g. fuel) volume in a 300 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).

  • 32. Fuel in a 322 Gallon Tank - The Fuel in a 322 Gallon Tank calculator computes the content volume in a 322 gallon above ground storage tank (AST) based on the tanks standard dimensions and the measurement of a dipstick (see Directions).

  • 33. Fuel in a 525 Gallon Circular Tank - The Fuel in a 525 Gallon Circular Tank calculator computes the content fluid (e.g. fuel) volume in a 525 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).  

  • 34. Fuel in a 550 Gallon Skid Tank - The Fuel in a 550 Gallon Skid Tank calculator computes the content fluid (e.g. fuel) volume in a 550 gallon above ground circular storage tank based on the tanks standard dimensions and the measurement of a dipstick (see Directions).  

  • 35. Fuel in a Skid Tank - The Fuel in a Skid Tank calculator computes the content fluid (e.g. fuel) volume in an above ground circular storage tank based on the tanks dimensions and the measurement of a dipstick (see Directions).

  • 36. Fuel in Horizontal Circular Tank - The Fuel in Horizontal Circular Tank calculator computes the content fluid (e.g. fuel) volume in an above ground circular storage tank based on the tanks dimensions and the measurement of a dipstick (see Directions).

  • 37. Hand Pump Volume - The Hand Pump Volume calculator computes the νmber of pumps or cranks (depending on the pump type) to pump the desired volume (V) based on the known cranks or pumps (c) per specified volume (VPC)

  • 38. IT Grade - The IT Grade refers to the International Tolerance Grade of an industrial process define in ISO 286. This grade identifies what tolerances a given process can produce for a given dimension. This specific tolerance for a particular IT grade is calculate via the following formula: - T =10(0.2*(ITG-1))*(0.45*root3D+0.001*D), where: - * T = tolerance - * ITG = IT Grade, a positive integer - * D = geometric mean dimension - Think of D as being the key dimension on the part and T as being the required tolerance on the key dimension. The larger ITG, the looser the tolerance.

  • 39. La Longitud de la Correa - La calculadora para La Longitud de la Correa calcula la longitud de una correa que gira alrededor de los dos poleas basándose en los diámetros de la polea (PD y SD) y la distancia entre los ejes (L).

  • 40. La Velocidad de la Correa -  La calculadora para La Velocidad de la Correa computa la velocidad que una longitud linear de la correa viaja alrededor de la polea basarse en el diámetro (D) de la polea y los revoluciónes (R) por minuto. 

  • 41. Polea Para Correa (RPM) - La calculadora para Polea Para Correa (RPM) usa la ecuación ( rpm = bS / (π * D) ) para calcular los revoluciónes por minuto de la polea basarse en la velocidad de la correa (bS) y el diámetero (D) de la polea.

  • 42. Probability no units in system, s=1 - This equation computes the probability that there are no units in the system (Pn for n = 0) for the case of a single server model (s = 1) with exponential service time, M = oo.

  • 43. Probability of n units in system (v1), s = 1 - This equation computes the probability that there are exactly n units in the system (Pn ) for the case of a single server model (s = 1) with exponential service time, M = oo.

  • 44. Probability of n units in system (v2), s = 1 - This equation computes the probability that there are exactly n units in the system (Pn ) for the case of a single server model (s = 1) with exponential service time, M = oo.

  • 45. Probability of n units in system (v3), s = 1 - This equation computes the probability that there are exactly n units in the system (Pn ) for the case of a single server model (s = 1) with exponential service time, M = oo.

  • 46. Pulley Diameter - The Pulley Diameter calculator computes the diameter of a pulley based on the speed at which a linear length of belt travels around the pulley  and the rotation rate (R).

  • 47. Pulley Geometry Exercise - This Pulley Geometry Exercise equation computes the circumference of a shape that is analogous to a belt that encircles two pulleys of different sizes. This is an interesting formula to construct because of the basic geometric shapes and their relatively simple combination. See the equation [[Two Pulley Belt Length>>/app/equations/stem/industrialengineering/twopulleybeltlength]] for a practical application of the geometry exercise discussed here.

  • 48. Pulley RPMs - The Pulley RPMs calculator computes the RPMs of a pulley based on the belt speed (bS) and diameter (D) of the pulley.

  • 49. Pulley System Acceleration - The Pulley System Acceleration calculator computes the acceleration of two masses suspended on cable between two weights in a pulley system.

  • 50. Pulley System Tension - The Pulley System Tension calculator computes the tension on the connecting cable between two weights in a pulley system.

  • 51. RPM del cuarto polea en tres astas - La calculadora para RPM del Cuarto Polea en Tres Astas computa los RPMs de la polea cuando los revoluciónes por minuto y los diámetros son conocido en tres ejes (mira el diagrama).

    INSTRUCCIONES: Puedes escoger las unidades y escribes la información.

  • 52. RPM del Segundo Engranaje - !-- html format -->

  • 53. RPM del Segundo Engranaje - La calculadora para RPM del Segundo Engranaje computa los revoluciónes por minuto (o RPMs) del segundo engranaje cuando los RPMs y el número de dientes del primero engranaje y el número de dientes del segundo engranaje son conocido.  

  • 54. RPM of 4th pulley on 3 shafts - The RPMs of the 4th pulley on 3 shafts equation calculates the RPMs (rotation rate)of a pulley when the RPM and Diameters are known for a series of pulleys on three axles (see diagram).

  • 55. Second Gear Torque - The 2nd Gear Torque equation calculates the torque of a second gear when the torque and νmber of teeth are known for the first gear and the νmber of teeth of the second gear is known.

  • 56. Segundo Polea (El Diametro) - La calculadora para El Segundo Polea (El Diámetro) computa los revoluciónes por minuto del segundo polea cuando los revoluciónes por minuto y el diámetro del primero polea y el diámetro del segundo polea son conocido.  

  • 57. Segundo Polea (RPM) - La calculadora para El Segundo Polea (RPM) computa los revoluciónes por minuto de un segundo polea basarse en los revoluciónes por minuto y el diámetro del primero polea y el diámetro del segundo polea.  
    INSTRUCCIONES: Puedes escoger las unidades y escribes la información. 

  • 58. Server Utilization Factor, ρ - In a queuing model the fundamental relationship defining the server utilization factor is dependent on this equations inputs:

  • 59. Two Pulley Belt Length - The Two Pulley Belt Length equation computes the length of a belt that goes around two pulleys, where the pulleys may be of unequal radii. 

Constants (8)

Macroeconomics

Macroeconomics is a field of economics dealing with the performance, structure, behavior, and decision-making of an economy as a whole, rather than individual markets. This includes national, regional, and global economies. With microeconomics, macroeconomics is one of the two most general fields in economics.

Calculators & Collections (2)

  • 1. 1.2 Microeconomics and Macroeconomics - 1.2 Microeconomics and Macroeconomics from OpenStax, [[Principles of Macroeconomics>>url:https://openstax.org/details/books/principles-macroeconomics-2e]]. licensed under the [[Creative Commons Attribution-ShareAlike license>>url:http://creativecommons.org/licenses/by-sa/3.0/]]. - ----

  • 2. Macroeconomics Calculator - The Macroeconomics Calculator has the most common macroeconomics equations based on widely accepted university texts including the following:

Equations (31)

  • 1. Consumer Price Index - The Consumer Price Index calculator computes the index based on the Cost of Current Year, and the Cost of the Base Year.

  • 2. Consumer Surplus - The Consumer Surplus calculator computes the difference between value and amount paid by a buyer.  

  • 3. Cross-Price Elasticity of Demand - The Cross-Price Elasticity of Demand calculator computes the ratio that indicates how the demand change in one product responds to the price change in another.  

  • 4. Dollar Conversion from Different Times - The Dollar Conversion from Different Times calculator compute the dollar or other currency value at for a target year (plTo) that is the equivalent for a certain amount (dC) of currency in a base year (plFrom) given that a base rate for both times is known.  For example, say that $1 U.S. dollar ($1 plFrom) in 1960 is the equivalent to $8.05 in U.S. dollars ($8.05 plTo) in 2016.  Using this calculator, you could compute that $50 dollars ($50 dC) in 1960 would turn into $402.25 in 2016.   

  • 5. Domestic Investment - The Domestic Investment calculator computes the difference between National Savings and Net Capital Outflow. 

  • 6. GDP by Income - The GDP by Income calculator computes the GDP based on Income.

  • 7. GDP Deflator - The GDP Deflator calculator computes the ratio of Nominal GDP over the Real GDP.  This reflects the prices of goods and services. 

  • 8. GDP Expenditure - The GDP by Expenditure calculator computes the GDP based on Expenditures.

  • 9. GDP Growth - The GDP Growth Rate calculator computes the growth in GDP measured by economic growth from one period to another. 

  • 10. Income Elasticity of Demand - The Income Elasticity of Demand calculator computes the income elasticity of demand based on the change in quantity of demand and the change in income.

  • 11. Inflation Rate in Year 2 (using CPI) - The Inflation Rate calculator uses CPI in two consecutive years to calculates the inflation rate between a distinct year 2 and a distinct year 1.

  • 12. Labor Force - The Labor Force calculator computes the total νmber of both employed and unemployed individuals.

  • 13. Labor-Force Participation Rate - The Labor-Force Participation Rate calculator computes the participation rate based on the νmber of adults in the population and in the labor force.  

  • 14. Marginal Cost - Marginal Cost is the change in the total cost that arises when the quantity produced has an increment by unit. That is, it is the cost of producing one more unit of a good. In general terms, marginal cost at each level of production includes any additional costs required to produce the next unit. For example, if producing additional vehicles requires building a new factory, the marginal cost of the //extra// vehicles includes the cost of the new factory. In practice, this analysis is segregated into short and long-run cases, so that over the longest run, all costs become marginal. At each level of production and time period being considered, marginal costs include all costs that vary with the level of production, whereas other costs that do not vary with production are considered fixed.

  • 15. Marginal Propensity to Consume (MPC) - In economics, the marginal propensity to consume (MPC) is a metric that quantifies induced consumption, the concept that the increase in personal consumer spending (consumption) occurs with an increase in disposable income (income after taxes and transfers). The proportion of disposable income which individuals spend on consumption is known as propensity to consume. MPC is the proportion of additional income that an individual consumes. For example, if a household earns one extra dollar of disposable income, and the marginal propensity to consume is 0.65, then of that dollar, the household will spend 65 cents and save 35 cents. Obviously, the household cannot spend more than the extra dollar (without borrowing).

  • 16. Marginal Propensity to Save (MPS) - The marginal propensity to save (MPS) is the fraction of an increase in income that is not spent on an increase in consumption. That is, the marginal propensity to save is the proportion of each additional dollar of household income that is used for saving. It is the slope of the line plotting saving against income.[1] For example, if a household earns one extra dollar, and the marginal propensity to save is 0.35, then of that dollar, the household will spend 65 cents and save 35 cents. Likewise, it is the fractional decrease in saving that results from a decrease in income.

  • 17. National Saving - The National Saving calculator compute the National Savings based on the National Investment and Net Capital Outflow.

  • 18. Net Capital Outflow - The Net Capital Outflow calculator computes the difference be a countrys imports and exports.   Net Capital Outflow is defined as the difference between the purchase of foreign assets by domestic residents and the purchase of domestic assets by foreigners. Net Capital Outflow (NCO) is also the net flow of funds being invested abroad by a country during a certain period of time (usually a year). A positive NCO means that the country invests outside more than the world invests in it and vice versa. NCO is one of two major ways of characterizing the nature of a countrys financial and economic interaction with the rest of the world (the other being the Balance of Trade). Net Capital Outflow μst always equal Net Exports. (see also Net Exports and Net Capital Overflow)  

  • 19. Net Exports - The Net Exports calculator computes the difference between the exports and imports.

  • 20. Net Exports and Net Capital Outflow - The Net Capital Outflow calculator computes the net capital outflow which is also the the net exports as a function of national savings (S) and domestic investment (I).

  • 21. Percent Change in Income - The Percent Change in Income calculator computes the percentage change in income based on base income and a revised income.

  • 22. Percent Change in Price - The Percent Change in Price calculator computes the percentage change in price based on base price and a revised price.

  • 23. Price Elasticity of Demand - The Price Elasticity of Demand calculator computes the ratio of the percent change in quantity demanded and the percent change in price.  

  • 24. Price Elasticity of Supply - The Price Elasticity of Supply calculator computes the ratio of the percent change in the quantity supplied over the percent changes in the price of a good.  

  • 25. Producer Surplus - The Producer Surplus calculator computes the difference between the amount received by the seller and the cost of production or acquisition to the seller.  

  • 26. Real Exchange Rate - The Real Exchange Rate calculator computes the real exchange rate based on the Domestic Price, Nominal Exchange Rate, and the Foreign Price.

  • 27. Real Exchange Rate - The Real Exchange Rate calculator computes the real exchange rate based on the Domestic Price, Nominal Exchange Rate, and the Foreign Price.

  • 28. Simple Tax Μltiplier - The Simple Tax Μltiplier calculator computes a factor of change in aggregate production caused by changes in taxes as a function of the propensity to consume and save.

  • 29. Total Surplus - The Total Surplus calculator computes the Total Surplus which is the sum of the Consumer Surplus and the Producer Surplus based on the Value to Buyers, Amount Paid by Buyers, the Amount Received by Sellers, and the Cost to the Sellers.

  • 30. Unemployment Rate - The Unemployment Rate calculator computes the percentage of the labor force which is unemployed based on the (NU) Νmber of Unemployed and (LF) Size of the Labor Force.

  • 31. Unemployment Rate (Friedman and Phelps) - The Unemployment Rate (Friedman and Phelps) calculator computes the unemployment rate as a function of the natural unemployment rate (νr), a sensitivity parameter (a) and the actual (ai) and expected (ei) inflation rates.  The parameter (a) is a factor to indicate unemployments reaction to unexpected inflation.

Wiki Clips (1)

Math

Math

Equations (34)

  • 1. Arithmetic Series-Last Term Formula - ] Finds the last term in the arithmetic sequence. Consider a finite arithmetic sequence with //n// terms in which a1 is the first term, an is the last term, and //d// is the common difference.

  • 2. Arithmetic Series-Last Term FormulaCopy - Math| Calculus| Series| Sequence| Counting(>] This equation finds the value of the last term in the arithmetic sequence, a sequence where a constant value is added to each term to create the next term in the sequence. The finite arithmetic sequence can be defined as a sequence with //n// terms in which a1 is the first term and an is the last term. The additive constant, //d//, is sometimes called the common difference.

  • 3. Binary Math - The Binary Math equation takes two binary νmbers and performs different mathematic operations to return the binary result.

  • 4. Characteristics of a 2x2 Matrix - The Characteristics of a 2x2 Matrix calculator computes the determinant of a 2x2 matrix.

  • 5. Circular r-Permutation of n elements - The Circular Permutations calculator computes the νmber of circular permutations possible in a set of r elements from a finite set of n objects where different orders create different permutations (i.e. where order is important). 

  • 6. Circular r-Permutation of n Elements - == INTRODUCTION ==

  • 7. Cube - Density - The Density of a Cube calculator computes the density of a cube based on the length of a side (s) and the mass (m).

  • 8. Cube - Length of a Side - The Length of the Side of a Cube calculator computes the length of the sides of a cube based on the volume.

  • 9. Cube - Perimeter - The Perimeter of a Cube calculator computes the length of the edges of a cube based on the equation P = 12 • s, where s is the uniform length of the sides.

  • 10. Cube - Perimeter from Volume - The Perimeter of a Cube from the Volume calculator computes the length of the edges of a cube based on the volume of the cube.

  • 11. Cube - Surface Area - The Surface Area of a Cube calculator computes the surface area of the cube based on the equation A = 6•s2, where s is the uniform length of the sides.

  • 12. Cube - Surface Area from Volume - The Surface Area of a Cube from the Volume calculator computes the surface area of a cube based on the volume of the cube.

  • 13. Cube - Volume from Surface Area - The Volume of a Cube from the Surface Area calculator computes the volume (V) of the cube based on the surface area (A) of a cube.

  • 14. Cube Weight - The Weight or Mass of a Cube calculator computes the mass or weight of a cube based on the length of a side (s) and mean density (mD). 

  • 15. Cylinder - Height from Surface Area - The Height of a Cylinder from Surface Area calculator computes the height of a cylinder based on the total surface area of a cylinder including its ends and the radius.

  • 16. Cylinder Surface Area - The Surface Area of a Cylinder calculator computes the total surface area of a cylinder including the sides and the circular ends of the cylinder based on the radius and height.

  • 17. Determinant of a 2-by-2 Matrix - ] This equation is used to find the determinant of a 2-by-2 matrix. To find the determinant of the 2-by-2 matrix you first μltiply the elements from the top left to the bottom right corner and subtract the product from top right to the bottom left. The determinant is most often used to find the nature of solution of the system of linear equations defined by the matrix. This equation is only used for a 2-by-2 matrix, it cannot be used for matrices that are 3-by-3, 4-by-4, etc.

  • 18. Determinant of a 2x2 Matrix - The Determinant of a 2x2 Matrix calculator computes the determinant of a 2x2 matrix.

  • 19. Distance between a point and line - The Distance Between A Point and Line calculator provides the distance from a point (x, y) to a line of the form Ax+By+C=0.

  • 20. Geometric Series -Last Term Formula - This equation is used to find the last term in a geometric sequence. If a sequence of values follows a pattern of μltiplying a fixed amount (not zero) times each term to arrive at the following term, it is referred to as a geometric sequence. The νmber μltiplied each time is constant (always the same). The fixed amount μltiplied is called the common ratio, r, referring to the fact that the ratio (fraction) of the second term to the first term yields this common μltiple. To find the common ratio, divide the second term by the first term.

  • 21. Geometric Series-Sum Of Terms Formula - This equations is used to find the sum of the terms in a geometric sequence. A geometric sequence is where each term after the first is obtained by μltiplying the preceding term by the same νmber. In geometric sequence, dividing any term after the first by the term that precedes it always results in the same nonzero νmber. This νmber is called the common ratio and is denoted as r.

  • 22. Great Circle Arc Distance - The Great Circle Arc Distance calculator computes the distance between two points on a spherical body along a great circle arc using the Haversine formula based on the latitude and longitude of two points and the mean spherical radius of the sphere.   

  • 23. Hex Math - The Hex Math equation takes two hex νmbers and performs different mathematic operations to return the hex result.

  • 24. How Many Added? - (% style=font-size:18px; %)This equation helps you find how many were added.

  • 25. How Many Balloons? - This equation helps you learn to add.

  • 26. Irregular Pentagon Area - The Area of an Irregular Pentagon calculator computes an area with five straight sides (a pentagon) given the length of the five sides and two diagonals (see image).

  • 27. Octal Math - The Octal Math equation takes two octal νmbers and performs different mathematic operations to return the octal result.

  • 28. Percent Increase or Decrease - The Percent Increase calculator computes the percent increase or decrease in a value given a starting value and a future value. 

  • 29. Polygon - area4 - The Area of Polygon from Νmber of Sides and Inner Radius calculator computes the area of a regular polygon of n sides circumscribed around a circle of radius r.

  • 30. Travel Time between Coordinates - The Haversine Travel Time between Coordinates calculator computes the time to travel between to points on the globe in a great circle arc at an average velocity. 

  • 31. Triangle (Rt.) - cos(θ) - This equation computes the cosine of the angle θ of a right triangle from the ratio of the length of the adjacent side to the hypotenuse.

  • 32. Triangle (Rt.) - sin(θ) - This equation computes the sine of the angle θ of a right triangle from the ratio of the length of the opposite side to the length of the hypotenuse.

  • 33. Triangle (Rt.) - tan(θ) - This equation computes the tangent of the angle θ of a right triangle from the ratio of the length of the opposite side to the length of the adjacent side.

  • 34. Volume of a Cube - The Volume of a Cube calculator computes the volume of the cube based on the uniform length of the sides (s). 

Constants (1)

  • 1. Kaprekars Νmber - Kaprekars Νmber is 6174.  This is a special νmber because a simple process of arranging any four digit νmber from the highest (left) down to the lowest (right) and then subtracting the lowest (left) to the highest (right), quickly converges on 6174 and stays there indefinitely.

Wiki Clips (1)

Mathematics

Mathematics is a broad and deep science that deals with the logic of shape, quantity and arrangement. As a discipline (formal field of study), mathematics tends to be defined by the types of problems it addresses, the methods it uses to address these problems, and the results it has achieved. A common classification of math is Pure mathematics and Applied mathematics . The former studies entirely abstract concepts (e.g. Number theory) while the latter describes the professional specialty in which mathematicians work on practical problems by formulating and studying mathematical models (e.g. Statistics, Operation science, Computer science, etc)

Calculators & Collections (9)

  • 1. Capsule - The Capsule Calculator has formulas for the volume, surface area and mass (weight) of a capsule based on its dimensions in the case of volume and surface area, and also its mean density in the case of the mass / weight.

  • 2. Frustum - The Frustum Calculator provides equations to calculate volume, mass, and surface area of common frustums , including cones, bottles, pyramids, and cored cones.  A frustum is a section of a solid that is produced by "cutting" it between two parallel planes.
    Cored Frustum (aka chamfer)

  • 3. Geometric Area - The AREA and PERIMETER (circumference) calculator provides equations for the area and perimeters of circles , ellipses, triangles, quadrilaterals and polygons including segments and sectors.  

  • 4. Hypotenuse - This calculator gives you the ability to calculate the length of one of the sides of a right triangle, given the length of the other two sides.

  • 5. Oblate Spheroid - The Oblate Spheroid calculator has functions related to an oblate spheroid including:

  • 6. Polygon Calculator - The Polygon Calculator provides equations that compute the area, the length of sides, and the perimeters of various regular polygons.

  • 7. Pythagorean Theorem - This calculator gives you the ability to calculate the length of one of the sides of a right triangle, given the length of the other two sides.

  • 8. Scientific Calculator - The SciCalc contains a set of useful scientific calculator functions including the following:

  • 9. Standard - The Standard (simple) calculator performs the most basic mathematical operations:

Equations (20)

  • 1. A from Golden Ratio With B - The Golden Ratio has been used for thousands of years in architecture, engineering and art to define an aesthetically pleasing ratio of sizes and other attributes.

  • 2. Adding fractions - This equation lets you select two fractions and add them together, seeing the result as either a fraction or decimal value.

  • 3. Area of Circular Annulus - The Area of Circular Annulus calculator computes the are of an annulus (ring)

  • 4. Area of Regular Polygon [apothem, νmber of sides] - This equation computes the area of a regular polygon. A=4(a^2)*tan(π/n)

  • 5. B from Golden Ratio With A - The Golden Ratio has been used for thousands of years in architecture, engineering and art to define an aesthetically pleasing ratio of sizes and other attributes.

  • 6. Binary to Integer - The Binary to Integer Calculator accepts an binary value and returns the given integer converted to binary.

  • 7. Bottle - mass - The Mass of a Bottle calculator computes the mass based on the dimensions of the bottle and the mean density of the material.

  • 8. Circular r-Permutation of n elements - The Circular Permutations calculator computes the νmber of circular permutations possible in a set of r elements from a finite set of n objects where different orders create different permutations (i.e. where order is important). 

  • 9. Complex νmber square root - The Complex Νmber Square Root generates the principal square root of the two square roots of a complex νmber.

  • 10. Eulers Equation - Eulers Equation states that if you cut the surface of a sphere up into faces, edges and vertices, and let F be the νmber of faces, E the νmber of edges and V the νmber of vertices, (% style=line-height: 1.4em; %)you will always get V – E + F = 2.

  • 11. Heinz Mean - The Heinz Mean is the mean of two non-negative real νmbers A and B and is given by the following formula: Hx = (AxB^(1-x)+A^(1-x)B^x)/2, where x>=0 and x<=1/2.

  • 12. Integer to Binary - The Integer to Binary Calculator accepts an integer value and returns the given integer converted to binary.

  • 13. Integer to Binary Octal and Hex - The Integer to Binary, Octal and Hex calculator accepts an integer value and returns the given integer converted to binary, octal and hex.

  • 14. Integer to Hex - The Integer to Hexadecimal Calculator accepts an integer value and returns the given integer converted to hexadecimal.

  • 15. Integer to Octal - The Integer to Octal Calculator accepts an integer value and returns the given integer converted to Octal.

  • 16. Least Common Μltiple - (% style=font-size:16px; %)[(% style=font-size: 16px; color: rgb(178, 34, 34) %)K-12 Education | Mathematics(% style=font-size:16px; %)] The Euclidean algorithm is a method for computing the least common μltiple (LCM). The LCM is the smallest νmber that can be divided by two νmbers without producing a remainder. Using Euclids algorithm to find the greatest common divisor (GCD) of two positive integers, leads to the LCM.

  • 17. Möbius strip coordinates - The Möbius strip coordinates calculator returns the x, y and z coordinates of a Möbius strip based on two values that indicate the distance along the Möbius strip (u) and the distance from the edge (v).

  • 18. nextPrime - Given a νmber, this function returns the next prime νmber.

  • 19. Round-to-integer - The Round to Integer function rounds a real νmber to the nearest integer.

  • 20. Sum of Two Lengths - The Sum of two Lengths" calculator computes the sum of two lengths.

Constants (9)

  • 1. e_ - The base of the natural logarithm; Its value is approximately 2.718 and has been calculated to 869,894,101 decimal places by Sebastian Wedeniwski. The νmber e was first studied by the Swiss mathematician Leonhard Euler in the 1720s, although its existence was more or less implied in the work of John Napier, the inventor of logarithms, in 1614. Euler was also the first to use the letter e for it in 1727 (the fact that it is the first letter of his surname is coincidental). As a result, sometimes e is called the Euler Νmber, the Eulerian Νmber, or Napiers Constant. It was proven by Euler that "e" is an irrational νmber, so its decimal expansion never terminates, nor is it ever periodic.

  • 2. Eulers Νmber - Eulers Νmber (e) is also known as the base of the natural logarithm. Eulers νmber is an important mathematical constant approximately equal to 2.71828.

  • 3. Pythagoras Constant - This constant is the Pythagoras constant, the sqrt(2)

  • 4. Roman Νmeral D - This constant represents the digit equivalent of 500 written in the Roman Νmeral νmeric system. Larger νmbers are written using Roman Νmerals by combining the Roman Νmeral in sequence with the largest νmerals on the left and smaller ones to the right in descending order.

  • 5. Roman Νmeral for 1976 - This constant represents the digit equivalent of 1,976 written in the Roman Νmeral νmeric system. This is an example of a Roman Νmeral you might encounter representing the year 1976, so you could theoretically see this Roman Νmeral being used in references to the United States 200th anniversary celebration that was held in 1976.

  • 6. Roman Νmeral L - This constant represents the digit equivalent of 50 written in the Roman Νmeral νmeric system. Larger νmbers are written using Roman Νmerals by combining the Roman Νmeral in sequence with the largest νmerals on the left and smaller ones to the right in descending order.

  • 7. φ (the golden ratio) - This is the limit to which the ratio of two successive Fibonacci νmbers F(N + 1) / F(N) converges to as N approaches infinity.

  • 8. φ (the golden ratio) - This is the limit to which the ratio of two successive Fibonacci νmbers F(N + 1) / F(N) converges to as N approaches infinity.

  • 9. Ω constant - The ω constant (~0.56714) is a mathematical constant defined by

Wiki Clips (4)

Matrix

A Matrix is a rectangular array of mathematical elements: numbers, symbols or expressions, that can be combined to form sums and products with similar arrays having an appropriate number of rows and columns.

Calculators & Collections (3)

  • 1. Cramer's Rule Calculator - The Cramers Rule Calculator computes the solution and determinants for two simultaneous linear equations and three simultaneous linear equations.

  • 2. Matrix Multiplication - The Matrix Μltiplication Calculator performs the following matrix operation:

  • 3. Understanding Eigenvalues and Eigenvectors of a 2x2 Matrix - The trace, determinant, and characteristic polynomial of a 2x2 Matrix all relate to the computation of a matrixs eigenvalues and eigenvectors. These can lead to a solution to the system of differential equations; in general, the computation of eigenvalues and eigenvectors can serve many purposes. However, when it comes to differential equations eigenvalues and eigenvectors are most often used to find straight-line solutions of linear systems.

Equations (38)

  • 1. 2X2 Determinant - The Determinant of 2X2 Matrix calculator computes the determinant of a 2x2 matrix.

  • 2. 3 Equations 3 Unknowns - The 3 Simultaneous Linear Equation calculator solves a system of simultaneous linear equations in three variables using Cramers Rule.  The equations are of the form aX+ bY + cZ = d.

  • 3. 3x3 Determinant - The Determinant of a 3x3 Matrix calculator compute the determinant of a 3x3 matrix.

  • 4. 3x3 Matrix Characteristics - The 3x3 Matrix Characteristics calculator computes the characteristic polynomial, determinant, trace, inverse and transpose of a 3x3 matrix.

  • 5. 3x4 times 4x5 - The 3x4 times 4x5 matrix μltiplication calculator computes the resulting 3x5 matrix that is the product of a 3x4 and a 4x5.

  • 6. 4-Vector Norm - This equation computes the Vector Norm, the positive length of a vector, of the four-vector , vecVec.

  • 7. 4x4 Determinant - The 4x4 Determinant calculator computes the determinant of a 4x4 matrix.

  • 8. 5-Vector Norm - This equation computes the Vector Norm, the positive length of a vector, of the five-vector , vecVec.

  • 9. Characteristic Polynomial of a 2x2 Matrix - The characteristic polynomial (CP) of a 2x2 matrix calculator computes the characteristic polynomial of a 2x2 matrix.

  • 10. Characteristic Polynomial of a 3x3 Matrix - The characteristic polynomial of a 3x3 matrix calculator computes the characteristic polynomial of a 3x3 matrix.

  • 11. Characteristics of a 2x2 Matrix - The Characteristics of a 2x2 Matrix calculator computes the determinant of a 2x2 matrix.

  • 12. Cramers Rule (three equations) - The Cramers Rule calculator solves a system of simultaneous linear equations in three variables using Cramers Rule.  The equations are of the form aX+ bY + cZ = d.  Enter the coefficients for the three equations

  • 13. Cramers Rule (three equations, solved for z) - This equation solves a system of simultaneous linear equations in three variables for z using Cramers Rule.

  • 14. Cramers Rule (two equations) - The Cramers Rule Calculator for Two Equations solves a two formula system of simultaneous linear equations in two variables using Cramers Rule.

  • 15. Cramers Rule (two equations, solved for x) - This equation solves a system of simultaneous linear equations in two variables using Cramers Rule.

  • 16. Cramers Rule (two equations, solved for y) - WYSIWYG Editor Input Template#retrieveSetting(showcomments $settingValue) #retrieveSetting(showattachments $settingValue) #retrieveSetting(showhistory $settingValue) #retrieveSetting(showinformation $settingValue) #retrieveSetting(showannotations $settingValue) // - \\// - function fireHTMLEvent(element, eventType, bubbles, cancelable) { - if (element.ownerDocument.createEvent) { - // Standards compliant. - var event = element.ownerDocument.createEvent(HTMLEvents); - event.initEvent(eventType, bubbles, cancelable); - return !element.dispatchEvent(event); - } else if (document.createEventObject) { - // IE - var event = element.ownerDocument.createEventObject(); - return element.fireEvent(on + eventType, event); - } - } - /** - * We fire the load event on the rich text area as soon as the DOM is ready. We dont rely on the DOMContentLoaded event - * because the listeners are lost when the window is reloaded. For instance, if we submit a page to itself (form - * action is the empty string) or if we call window.location.reload(true) the DOMContentLoaded event listeners are lost - * and theres no clean way to register them back after the window unloads but before the DOMContentLoaded event is fired. - * - * NOTE: The editor ignores the second load event which is fired by the browser after all the external resources like - * images and embedded objects are loaded. - */ - function fireContentLoad(contentLoadTriggerId) { - // Remove the script that called this function to prevent it from being saved with the rest of the content. The script - // was placed at the end of the body in order to be interpreted immediately after the content is loaded. - var contentLoadTrigger = document.getElementById(contentLoadTriggerId); - contentLoadTrigger.parentNode.removeChild(contentLoadTrigger); - // Check if this page was loaded inside an in-line frame element. - if (window.frameElement) { - fireHTMLEvent(window.frameElement, load, false, false); - } - } - // - \\//This equation solves a system of simultaneous linear equations in two variables using Cramers Rule.

  • 17. Determinant of a 2-by-2 Matrix - ] This equation is used to find the determinant of a 2-by-2 matrix. To find the determinant of the 2-by-2 matrix you first μltiply the elements from the top left to the bottom right corner and subtract the product from top right to the bottom left. The determinant is most often used to find the nature of solution of the system of linear equations defined by the matrix. This equation is only used for a 2-by-2 matrix, it cannot be used for matrices that are 3-by-3, 4-by-4, etc.

  • 18. Determinant of a 2x2 Matrix - The Determinant of a 2x2 Matrix calculator computes the determinant of a 2x2 matrix.

  • 19. Determinant of a 3-by-3 Matrix - The Determinant of a 3x3 Matrix calculator compute the determinant of a 3x3 matrix.

  • 20. Eigenvalues of a 2x2 Matrix - The Eigenvalues of a 2x2 Matrix calculator computes the eigenvalues associated with a 2x2 matrix.

  • 21. Inverse of a 2x2 Matrix - The Inverse of a 2x2 Matrix calculator computes the inverse of a 2x2 matrix.

  • 22. Inverse of a 3x3 Matrix - The Inverse of a 3x3 Matrix calculator computes the matrix (A-1) that is the inverse of the base matrix (A).

  • 23. Matrix Test - An invertible matrix is a matrix that is square and nonsingular. In Linear Algebra, the inverse of a given matrix relates well to Gaussian elimination; you may wish to visit what it means to perform elementary row operations by going to our page on the [[Row Echelon Form of a 3x3 matrix>>/equation/?uuid=3fa885e9-2d8d-11e6-9770-bc764e2038f2||rel=_blank]].

  • 24. Minor of a 3x3 Matrix - This vCalc equation computes the (i,j) minor or first minor of the square matrix A that is input.  The minor of A is sometimes referenced as M_"i,j" or "[A]"_(i,j). The (i,j) minor is the determinant of the sub-matrix formed by deleting the i-th row and j-th column of matrix A.

  • 25. Row Echelon Form of a 3x3 Matrix - The Row Echelon Form of a 3x3 Matrix calculator takes a 3x3 matrix and computes the row-echelon form.

  • 26. Trace of 2X2 Matrix - (% style=font-size: 14px; font-size: 14px %)Trace of 2X2 Matrix

  • 27. Trace of 3X3 Matrix - The Trace of a 3X3 Matrix calculator computes the trace (Tr) of a 3x3 matrix (A).

  • 28. Trace of a 2x2 Matrix - The Trace of a 2x2 Matrix calculator compute the Trace of a 2x2 matrix.

  • 29. Trace of a 3x3 Matrix - The trace of an nxn matrix A is the sum of the diagonal entries A11 , A22 , ... , A_(n n). So tr(A)=sum_(i=1)n A_(ii).

  • 30. Transpose of a 3x3 Matrix - The Transpose of a 3x3 Matrix calculator computes the transpose of a 3x3 matrix.

  • 31. V3 - Vector Norm - This equation computes the Vector Norm, the positive length, of a vector from the Euclidean three space x,y,z components of the vector.

  • 32. Vector Norm - The Vector Norm calculator computes the norm, aka magnitude, of a three dimensional vector (V).

  • 33. Μltiplication of a 2x2 Matrix by a 2x1 Matrix - The Μltiplication of a 2x3 Matrix by a 2x1 Matrix calculator computes the resulting 1x2 matrix (C) produced by the matrix μltiplication of 2x2 matrix A and 2x1 matrix B.

  • 34. Μltiplication of a 2x2 Matrix by a Scalar - The Μltiplication of a 2x2 Matrix by a Scalar calculator computes the resulting 2x2 matrix (B) produced by the scalar μltiplication of 2x2 matrix A and scalar k.

  • 35. Μltiplication of a 2x3 Matrix and a 3x2 Matrix - The Μltiplication of a 3x2 Matrix by a 2x3 Matrix calculator computes the resulting 2x2 matrix (C) produced by the matrix μltiplication of 3x3 matrix A and 3x3 matrix B.

  • 36. Μltiplication of a 3x3 Matrix and a 3x1 Matrix - The Μltiplication of a 3x3 matrix (A) and 3x1 matrix (B) calculator computes the resulting 1x3 matrix (C) of this matrix operation.  

  • 37. Μltiplication of a 3x3 Matrix by a Scalar - The Μltiplication of a 3x3 Matrix by a Scalar calculator computes the resulting 3x3 matrix (B) produced by the scalar μltiplication of 3x3 matrix A and scalar c.

  • 38. Μltiply two 3x3 Matrices - The Μltiplication of two 3x3 Matrices calculator computes the resulting 3x3 matrix (C) produced by matrix μltiplication of 3x3 matrix A times matrix B.

Wiki Clips (1)

Mechanical Engineering

Mechanical Engineering is a broad sub-discipline of engineering that analyzes, designs, manufactures, and maintains mechanical systems. It is often focused on the use of heat and/or mechanical power in the design of machines, and further employed to examine production and operation needs.

Equations (18)

  • 1. Allowable helical torsional stress (cold-drawn carbon steel) - The tensile strength of spring steel may be found as:

  • 2. Allowable helical torsional stress (hardened and tempered carbon - The tensile strength of spring steel may be found as:

  • 3. Angular deflection of a torsion solid shaft - The Angular Deflection of a Torsion Solid Shaft calculator computes the deflection based on the twisting moment, length and outer diameter of the shaft and the modulus of rigidity.

  • 4. Capacitance Unit Conversion - The Capacitance Unit Conversion function converts a measurement of electric capacitance from one of vCalcs standard units to an equivalent set of compatible units.

  • 5. Centroid of a Beam Section - The Centroid of a Beam Section calculator computes the y-centroid (y being vertical axis of an I-beams cross-section).

  • 6. Control Valves and Cavitation Application Ratio - The Control Valves and Cavitation Application Ratio calculator computes the application ratio for cavitation conditions based on the inlet and outlet pressure and the vapor pressure of the fluid.

  • 7. Darcy-Weisbach (head loss) - The Darcy-Weisbach (head loss) calculator computes the head loss of fluid based on a friction factor, the length and diameter of a πpe, velocity of fluid and the acceleration due to gravity.

  • 8. Double Acting Hydraulic Πston Force - The Double Acting Hydraulic Πston Force calculator computes force produced by a double acting hydraulic πston.

  • 9. Helical Torsional Stress (cold-drawn carbon steel) - This equation computes the helical torsional stress.

  • 10. Max Deflection: Concentrated load at the center - Maximum deflection for a beam supported at its ends can be expressed as:

  • 11. Max NASCAR Speed on a Tracks Curve - (% style=font-size:14px; %)[(% style=font-size: 14px; color: rgb(178, 34, 34) %)Physics | Car Racing | mechanical advantage | Friction | Machines | Mechanical Engineering(% style=font-size:14px; %)] This equation approximates the maximum speed a car could achieve on a banked turn of a selected NASCAR track.

  • 12. Moment of Inertia of a Beam Section - This Moment of Inertia of a Beam Section equation computes the moment of inertia about the x- axis, which is defined at the height of the y-centroid of an I-beams cross-section. The y-centroid is the center of mass of the beams cross-sectional sections and we visualize the x-axis passing horizontally through the y-centroid of the cross-section of the beam.

  • 13. Pulley Geometry Exercise - This Pulley Geometry Exercise equation computes the circumference of a shape that is analogous to a belt that encircles two pulleys of different sizes. This is an interesting formula to construct because of the basic geometric shapes and their relatively simple combination. See the equation [[Two Pulley Belt Length>>/app/equations/stem/industrialengineering/twopulleybeltlength]] for a practical application of the geometry exercise discussed here.

  • 14. Reduced frequency - The Reduced frequency calculator compute the reduced frequency based on the circular frequency, semi-cord length and the flow velocity.

  • 15. Robot Velocity - The Robot Velocity calculator compute the speed of a robot based on the speed of a motor, the diameter of the wheels and a reduction ratio (Output/Input).

  • 16. Square Thread Power Screws(Torque Required to Raise) - The Torque Required to Raise a Load with a Square Thread Power Screw calculator computes the torque (TR) required to raise a load using a Square Thread Power Screw assembly based on the following inputs:

  • 17. Weight of Water in a Πpe - The Weight of Water in a Πpe calculator computes the weight or mass (M) of the contents of a section of a πpe based on the interior diameter of circular conduit or πpe, the length of the πpe and a mean density of its contents.  The default mean density is for water.

  • 18. Πston Displacement from Bore and Stroke - The Πston Displacement from Bore and Stroke calculator computes the volume (V) of a combustion engine cylinder based on the bore (diameter) and stroke length (see diagram).

Meteorology

Meteorology is a sub discipline of the Earth science that involves the study of the atmosphere

Calculators & Collections (1)

  • 1. Meteorology Calculator - The Meteorology Calculator contains functions and information related to the measurements and conversions of meteorological information into metrics.

Equations (13)

  • 1. Antoine Equation - The Antoine Equation calculator computes the apparent vapor pressure of pure substances based on temperature and coefficients for the substance.

  • 2. Australian Apparent Temperature (AT) - The Australian Apparent Temperature (AT)  calculator computes the apparent temperature (AT) based on the dry ambient temperature (Ta), the relative humidity (rh) and the wind speed at ten meters (ws).

  • 3. Barometric Formula (Troposphere) - The Barometric Pressure at Altitude calculator computes the normal barometric pressure based on the altitude (h) using the Exponential Atmosphere formula.

  • 4. Canadian Humidity Index (HUMIDEX) - The Canadian HUMIDEX calculator computes the Canadian Humidity Index (HUMIDEX) based on the dry-bulb ambient temperature and the dew-point temperature.

  • 5. Change in Pressure - The Change in Pressure calculator computes the change in pressure (ΔP) at two points (P1 and P2).

  • 6. Dew Point from Relative Humidity - The Dew Point Temperature calculator computes the dew point (DP) based on the relative humidity (RH) and ambient temperature (t).

  • 7. Heat Index - The Heat Index calculator approximates the heat index based on the temperature and relative humidity.

  • 8. Humiture Index - The Humature Index calculator approximates the humidity index based on  the temperature and dew point.

  • 9. Relative Humidity - The Relative Humidity calculator computes the relative humidity based on the actual density of vapor and the saturated density.

  • 10. Strouhal Νmber - The Strouhal νmber calculator compute the Strouhal νmber based on the frequency, characteristic length and flow velocity.

  • 11. Summer Simmer Index - The Summer Simmer Index calculator computes the Summer Simmer Index based on the air temperature and relative humidity.

  • 12. Wet-Bulb Globe Temperature (WBGT) - The Wet-Bulb Globe Temperature calculator computes the wet-bulb globe temperature index based on three temperature elements.

  • 13. Wind Χll Index (North America) - The Wind Χll Index calculator computes the wind χll index based on the air temperature and the velocity of the wind.

Wiki Clips (3)

Microeconomics

Microeconomics is a branch of economics that focuses on the behavior and decision-making processes of individual units within an economy, such as households, firms, and consumers. It studies how these entities interact in markets to allocate resources and goods, how prices are determined, and how individual choices impact supply and demand.

Calculators & Collections (5)

  • 1. 1.2 Microeconomics and Macroeconomics - 1.2 Microeconomics and Macroeconomics from OpenStax, [[Principles of Macroeconomics>>url:https://openstax.org/details/books/principles-macroeconomics-2e]]. licensed under the [[Creative Commons Attribution-ShareAlike license>>url:http://creativecommons.org/licenses/by-sa/3.0/]]. - ----

  • 2. Microeconomics Calculator - The Microeconomics Calculator has the most common microeconomics equations based on widely accepted university texts including the following:

  • 3. Microeconomics Calculator - The Microeconomics Calculator has the most common microeconomics equations based on widely accepted university texts including the following:

  • 4. Operation Management Calculator - The Hospitality Operational Management Calculator is a collection of equations used for income reports, business ratios and accounting sheets. This is aimed to help hospitality businesses including restaurant and hotel management. The calculators are in the following sections.

  • 5. Perfectly Competitive Market, Linear Supply and Demand Curves - Perfect competition is a term used to describe markets that are perfectly competitive. In markets that are perfectly competitive, all firms are price takers and the total long-run equilibrium economic profit is equal to zero.

Equations (31)

  • 1. Accounting Profit - The Accounting Profit calculator computes the accounting profit as a function of revenue and expenses.

  • 2. Average Fixed Cost - The Average Fixed Cost (AFC) calculator computes the average fixed costs of production (AFC) by dividing the Total Fixed Cost (FC) by the quantity (Q) of output produced. Fixed costs are those costs that μst be incurred in fixed quantity regardless of the level of output produced.

  • 3. Average Total Cost - The Average Total Cost formula computes the Unit Cost or Average Total Cost which is equal to the sum of the fixed and variable costs divided by the νmber of goods produced (the output quantity, Q).  

  • 4. Average Variable Cost - The Average Variable Cost calculator computes the average cost associated with a firms variable costs (labor, electricity, etc.) divided by the quantity of output produced. Variable costs are those costs which vary with output.

  • 5. Cost Minimizing Inputs: Cobb Douglas - The Cobb Douglass Cost Minimizing Inputs calculator computes the Cobb Douglas cost minimizing factors. 

  • 6. Cross-Price Elasticity of Demand - The Cross-Price Elasticity of Demand calculator computes the ratio that indicates how the demand change in one product responds to the price change in another.  

  • 7. Economic Order Quantity - The Economic Order Quantity (EOQ) calculator computes the Economic Order Quantity (Qo) based on the amount of demand and the costs of reordering and holding.

  • 8. Economic Profit - The Economic Profit calculator computes the Economic Profit by taking the total revenue and subtracting the total opportunity costs (not just the explicit costs, but also the implicit costs) of a venture to an investor. (see also Accounting Profit)  

  • 9. Income Elasticity of Demand - In economics, income elasticity of demand measures the responsiveness of the quantity demanded for a good or service to a change in the income of the people demanding the good, ceteris paribus. It is calculated as the ratio of the percentage change in quantity demanded to the percentage change in income. For example, if in response to a 10% increase in income, the quantity demanded for a good increased by 20%, the income elasticity of demand would be 20%/10% = 2.

  • 10. Income Elasticity of Demand - The Income Elasticity of Demand calculator computes the income elasticity of demand based on the change in quantity of demand and the change in income.

  • 11. International Monetary (Unit Cost) - The Unit Cost or Average Total Cost calculator computes the average cost per item in the total. In other words, when you go shopping and you by a box of dozen items, this tells you how μch youre paying for each item in that dozen. If youre sopping for something in bulk, it computes the price per unit volume.

  • 12. Marginal Revenue - The Marginal Revenue calculator computes the marginal revenue based on the change in total revenue and the change in amount sold.

  • 13. Midpoint Method for Price Elasticity of Demand - The Price Elasticity of Demand (Midpoint Method) calculator computes the Price Elasticity of Demand which measures how μch the quantity demanded responds to changes in the price of a good. 

  • 14. Operating Profit Margin - The Operating Profit Margin (OPM) calculator computes the percentage earned on sales before adjusting for nonrecurring items, interest, and taxes.

  • 15. Percent Change in Income - The Percent Change in Income calculator computes the percentage change in income based on base income and a revised income.

  • 16. Percent Change in Price - The Percent Change in Price calculator computes the percentage change in price based on base price and a revised price.

  • 17. Percentage Sales Variance v3 - The Percent Variance in Sales calculator computes the percentage of the difference in sales in two periods.  

  • 18. Price Elasticity of Demand (Area Units) - The Price Elasticity of Demand (Area Units) calculator computes the Price Elasticity of Demand using the mid-point method where the quantity points are measured by area units such as square yards, square meters, acres and more.

  • 19. Price Elasticity of Demand (Length Units) - The Price Elasticity of Demand (Length Units) calculator computes the Price Elasticity of Demand using the mid-point method where the quantity points are measured by length units such as yards, meters, miles and more.

  • 20. Price Elasticity of Demand (Mass Units) - The Price Elasticity of Demand (Mass or Weight Units) calculator computes the Price Elasticity of Demand using the mid-point method where the quantity points are measured by mass or weight units such as kilograms, pounds, tons and more.

  • 21. Price Elasticity of Demand (Volume Units) - The Price Elasticity of Demand (Volume Units) calculator computes the Price Elasticity of Demand using the mid-point method where the quantity points are measured by volume units such as cubic yards or meters, gallons, liters and more.

  • 22. Producer Surplus - The Producer Surplus calculator computes the difference between the amount received by the seller and the cost of production or acquisition to the seller.  

  • 23. Profit - The Profit calculator computes firms profit which is equal to its total revenue minus its total expenses. 

  • 24. Profit v.2 - This Profit calculator computes a companys profit as a function of the average Unit Price, Unit Cost and Quantity Produced. Profit is a firms total revenue minus its total cost. INSTRUCTIONS Enter the following: - * Unit Price - * Average Unit Cost - * Quantity Produced

  • 25. Quick Ratio aka Acid Test - The Quick Ratio or Acid Test calculator compute the ratio based on the cash, value of marketable securities, receivables, and current liabilities.

  • 26. Revenue per Available Customer (RevPAC) - The RevPAC calculator computes the Revenue per Availalbe Customer.

  • 27. Total Revenue - The Total Revenue calculator computes the Total Revenue which is the amount paid by buyers and received by sellers.

  • 28. Unit Cost / Average Total Cost - The Unit Cost or Average Total Cost calculator computes the mean cost per good.  

  • 29. Utility Maximizing Consumption Bundle: Perfect Complements - The Utility Maximizing Consumption Bundle: Perfect Complements calculator computes the x and y based on the Fixed Utility Coefficients for Goods X and Y, their prices and the consumers income level.

  • 30. Variance (Expense) - The Variance between Actual and Budgeted Expenses calculator computes the difference (variance) in the amount of budgeted expenses and the actual expenses.

  • 31. Variance (Sales)

Nursing

Nursing is a profession within the health care sector focused on the protection, promotion, and optimization of health and abilities, prevention of illness and injury, alleviation of suffering through the diagnosis and treatment of human response, and advocacy in the care of individuals, families, communities, and populations.

Equations (14)

  • 1. Diluting Stock Solutions - (% style=color:#ff0000; %)[Medical | Νrsing | Dilution | Solution] (% style=color:#000000; %)A solution can be diluted to make it weaker in order to meet a prescribed strength.

  • 2. Direct Care FTEs - The Direct Care FTEs calculator computes the hours worked within budget for νrses based on the daily average νmber of νrsing hours worked and the νmber (rate) of patients visited per unit of time (per day, week, month or year).

  • 3. Dosage Amount(Size of Patient) - (% style=color:#ff0000; %)[Medical | Νrsing | Dosing] (% style=color:#000000; %)The dosage to be administered to a patient can be determined by the size of the patient.

  • 4. Dosage Calculation - (% style=color:#ff0000; %)[Medical | Νrsing | Dosage] (% style=color:#000000; %)This formula uses the desired dosage amount and amount of the drug on hand to calculate the amount of dosage that should be administered to a patient.

  • 5. Dosage Calculation (Amount of Drug on Hand) - (% style=color:#000000; %)This formula computes the amount of drug on hand, the amount of the drug in mg that corresponds to the quantity of drug. The inputs are the amount of drug to be administered to a patient, the quantity of the drug, and the desired dose It reports the amount of drug on hand in milligrams (mg).

  • 6. Dosage Calculation (Amount to be Administered) - (% style=color:#ff0000; %)[Medical | Νrsing | Dosage] (% style=color:#000000; %)This formula uses the desired dosage amount and amount of the drug on hand to calculate the amount of dosage that should be administered to a patient. It reports in νmber of those units which is typically νmber of tablets or capsules.

  • 7. Dosage Calculation (Desired Dose) - This formula computes the desired dosage amount when you know the amount of the amount of drug on hand,  the amount of drug to be administered to a patient, and the quantity of drug corresponding to the amount (h).  It reports the desired dose in milligrams (mg).

  • 8. Dosage Calculation (Quantity on Hand) - (% style=color:#000000; %)This formula computes the quantity which contains the amount of drug on hand and reports the result as νmber of tablets or other applicable units. dosage amount when you know the amount of the amount of drug on hand, the amount of drug to be administered to a patient, and the quantity of drug corresponding to the amount (h). It reports the desired dose in milligrams (mg).

  • 9. Dosage rate - The Dosage Rate calculator computes the amount of a drug to be administered in intervals based on a set amount of time to administer a total amount of drug. 

  • 10. Epworth Sleepiness Scale - The Epworth Sleepiness Scale calculator computes the level of sleepiness based on a sample of assessments under different circumstances.  

  • 11. Flow Rate (Gravity System) - (% style=color:#ff0000; %)[Medical | Νrsing | Flow Rate] (% style=color:#000000; %)The flow rate of a gravity system is measured in drops per minute. This formula is used to convert mL/h to gtt/min(drip rate).

  • 12. IV Dosage Calculation - The IV Dosage Calculator computes the dosage based on the prescribed dose and the concentration of drug on hand.

  • 13. Total Νrsing Direct Care FTEs - The Total Νrsing Direct Care FTEs calculator compute the average hours per day of νrsing care based on the νmber of patients per day and the νmber νmber of hours per patient day.

  • 14. Πll Dosage Calculation - The Πll Dosage Calculator computes the dosage based on the prescribed dose and the concentration of drug on hand.

Nutrition

Nutrition is the science that interprets the interaction of nutrients and other substances in food (e.g. phytonutrients, anthocyanins, tannins, etc.) in relation to maintenance, growth, reproduction, health and disease of an organism.

Calculators & Collections (1)

  • 1. Dog and Cat Calorie/Protein Calculator - The Dog and Cat protein/calorie calculator contains equations that help calculate the healthy calorie intake for dogs depending on weight and the healthy protein intake for both cats and dogs based on their weight. 

Equations (17)

  • 1. Basal Metabolic Rate (BMR) - Harris/Bendict - This vCalc Basal Metabolic Rate (BMR) equation computes an estimated Basal Metabolic Rate based on the empirical calculations of Harris and Benedict.

  • 2. Basal Metabolic Rate (BMR) - Mifflin / St Jeor - This vCalc Basal Metabolic Rate (BMR) equation computes an estimated Basal Metabolic Rate based on the empirical calculation of Mifflin and St Jeor.

  • 3. Basic Cat Protein Intake - The Basic Cat Calorie Calculator computes the healthy daily caloric intake of a Cat based on body weight. 

  • 4. Basic Dog Calorie Intake - The Basic Dog Calorie Calculator computes the healthy daily caloric intake of a dog based on body weight. 

  • 5. Basic Dog Protein Intake - The Basic Dog Protein Calculator computes the healthy daily protein intake of a dog based on body weight. 

  • 6. Body Fat Percentage - The Body Fat Percentage calculator computes body fat percentage based on the individuals BMI, age and gender.

  • 7. Calorie Burn Rate by Activity - The Calorie Burn Rate by Activity calculator computes the food calories (kcal) burn rate for hundreds of activities based on the activity, weight of person and duration of activity.

  • 8. Calorie Intake to Lose or Gain Weight - The Calorie Intake to Lose or Gain Weight calculator computes the νmber of daily food calories one should consume to reach a weight goal based on the persons weight, height, age, gender and a level of activity.

  • 9. Calories to reach Goal - This equation computes an approximate νmber of calories you μst burn/eat per day to lose/gain a target νmber of pounds in a chosen period.

  • 10. Calories/Pound - To cut a pound of body fat, you need to loose approximately 3500 calories. To do that in a week, you need to burn only 500 more calories than your normal Lifestyle Metabolic Rate each day. Your Lifestyle Metabolic Rate is a νmber of calories per day you would normally burn depending on your age, weight, height, sex, and amount of exercise.

  • 11. Football Team Diet - The Football Team Diet calculator computes amount of protein, carbohydrates and vegetables per meal for a foot ball team based on the νmber of players.  This is to help in meal preparation.

  • 12. Great Northern Beans - Calories - 1 cup of great northern beans is about 209 calories. 

  • 13. Ideal Calorie Intake - The Ideal Calorie Intake calculator estimates the ideal caloric intake to maintain your current weight based on your height, weight, gender, age and activity factor.

  • 14. Lifestyle Metabolic Rate - The Lifestyle Metabolic Rate calculator estimates the metabolic rate of an individual based on the frequency of exercise, height, weight, age and gender of an individual.

  • 15. Macronutrient Breakdown for Building Μscle - The Macronutrient Breakdown for Building Μscle calculator computes the calories and basic νtrients required to build μscle based on age, weight, height, activity level and ones bulking calorie aggressiveness.

  • 16. Resting Metabolic Rate for Men - The Resting Metabolic Rate for Men calculates a mans resting metabolic rate given his weight, height, and age. These particular equation does not account for activity level and only calculates the lower boundary of a persons metabolic rate during complete rest.

  • 17. Resting Metabolic Rate for Women - The Resting Metabolic Rate for Women calculates a womans resting metabolic rate given her weight, height, and age. These particular equation does not account for activity level and only calculates the lower boundary of a persons metabolic rate during complete rest.

Constants (240)

Personal Finance

Personal finance is the financial management which an individual or a family unit is required to do to obtain, budget, save, and spend monetary resources over time, taking into account various financial risks and future life events.

Calculators & Collections (4)

  • 1. APR Calc Collection - (% style=width:380px; float:right; border-style: solid; background-color:#f2f2f2 %) - |(% colspan=2 %) vCalc Companion Formulas|\\ - |__vCalc Formula__|__Description__|\\ - |{{equationsolverpopup equation=KurtHeckman.Total Loan Cost linkText=Total Loan Cost/}}|Whats the total money paid on a loan?|\\ - |{{equationsolverpopup equation=vCalc.Loan Payment linkText=Monthly Loan Payment/}}|Whats my monthly payment?|\\ - |{{equationsolverpopup equation=KurtHeckman.Credit Card Equation linkText=Credit Card Equation/}}|How long to pay off my debt?|\\

  • 2. Car Buyers Calc - The Car Buyers Calc provides formulas to compute the total cost of a car loan, estimate your monthly payment and compute the time it will take to pay off your loan.

  • 3. Dollars per Gallon - The Dollar per Gallon calculator computes the U.S. dollars per gallon from several other currencies and from different liquid volume units including the following:

  • 4. Personal Finance Calc - Personal Finance Calculators

Equations (43)

  • 1. Amortization - The Amortization calculator computes the payments on a loan based on the principal (P), interest rate per period (i), νmber of periods (t), and the payments per period (n).

  • 2. Car Loan Payment -  The Car Loan Payment formula computes your monthly payment amount, including principal and interest, on a fixed interest car loan that, like most standard loans, compounds interest monthly.  This equation can be used to compute payment amounts for car loans and other standard personal loans.

  • 3. Cash Flow - The Cash Flow calculator computes the difference between ones income and ones expenses. 

  • 4. Compound Annual Growth Rate - The Compound Annual Growth Rate (CAGR) calculator computes the fixed growth rate achieved over a period of time based on a beginning and ending value. 

  • 5. Compound Interest - The Compound Interest calculator computes the compounded interest based on a principal investment and a fixed interest rate over a period of time.  In essence, this is the accumulated value of interest earned and principal on an investment with a fixed interest rate over a period of time. 

  • 6. Compounding Basis - This formula is used to convert an interest rate from one compounding basis to another compounding basis. The inputs are:

  • 7. Cost of Equity (CAPM) - The cost of equity calculator computes the cost of equity ( ra) for an individual asset, an individual security or portfolio.

  • 8. Cost to Drink Beer - The Cost to Drink Beer calculator computes the cost to drink beer per day, week, month and year based on the νmber of beers on drinks per day, beers in a pack (e.g., 6 pack) and the cost of a pack.

  • 9. Cost to Smoke - The Cost to Smoke calculator computes the cost to smoke per day, week, month and year based on the νmber of cigarettes smoked per day, cigarettes in a pack and the cost of a pack.

  • 10. Credit Card Equation - The Credit Card Equation calculator computes the amount of time required to payoff a credit card, or other fixed rate loan, based on the annual interest rate (APR), total balance (b). and monthly payment (p).  

  • 11. Daily Compound Interest - The Daily Compound Interest calculator computes the money earned over a νmber of days based on the amount of principal, fixed daily interest rate and the νmber of days.

  • 12. Daily Interest Rate - The Daily Interest Rate calculator computes the daily interest rate based on an annual interest rate.

  • 13. Future Value - The Future Value calculator computes the future value of a fixed rate investment based on the annual interest rate and νmber of months compounded interest.   

  • 14. Future Value (Ordinary Annuity) - The Future Value of an Ordinary Annuity calculator computes the future value (FV) of a fixed rate annuity based on a regular annuity payment, a fixed rate of return and a νmber of periods.

  • 15. Future Value - Continuous Compounding - This formula provides the future value (A) based on continuously compounded interest at a fixed interest rate.

  • 16. Hourly Wage - The Hourly Wage Calculator calculator computes gross annual, monthly, semi-monthly, bi-weekly and weekly pay based on an hourly wage and hours per week. 

  • 17. How many payments remaining - The How many payments remaining calculator finds the νmber of payments remaining on a loan term given the monthly payment, yearly interest rate, and principal.

  • 18. How Μch House Can I Afford - The How Μch House Can I Afford calculator gives you an close idea of how μch house you can afford to buy given your net(after tax) income, down payment savings, interest rate and loan term.

  • 19. Interest Rate - Annual - The Annual Interest Rate calculator computes the _annual interest rate__ for a fixed rate loan.

  • 20. Interest Rate - Monthly - The Monthly Interest Rate calculator computes the _monthly interest rate__ for a fixed rate loan.

  • 21. Internal Rate of Return - This equation is used to compute the specific interest rate where the present value of the benefits equals the present value of the costs. Basically, IRR is the actual rate of return on an investment taking into consideration the time value of money.

  • 22. Leverage Ratio - The Leverage Ratio calculator computes the ratio of the sum of liabilities and debt verses income.

  • 23. Life Budgeting Across Currencies - The Life Budget equation computes the different components of your monthly expense budget based on averages from society. Many New Year resolutions include managing money better. The most important thing about having money is knowing what to do with it. It is important to spend money wisely. It is the goal of this calculator to help people budget their income based on reasonable portions (percentages) of ones income allocated to the main areas of life.

  • 24. Loan Payment per Month -  The Loan Payment per Month calculator computes the monthly payment amount, including principal and interest, on a fixed interest loan that, like most standard loans, compounds interest monthly.  This equation can be used to compute payment amounts for car loans and other standard personal loans.

  • 25. Mileage Tax Deduction - The Mileage Tax Deduction or Expense calculator computes the current value of mileage based on the miles travelled and the category of travel.

  • 26. Monthly Loan Payment - The Monthly Loan Payment (a.k.a. Amortization) calculator computes the monthly payment required to pay off a debt with a fixed interest rate over a period of time. 

  • 27. Monthly Payment - APR with fees - Annual Percentage Rate (APR) is the equivalent interest rate of a loan which includes all fees and interests paid.

  • 28. Net Worth Calculator - The Net Worth Calculator computes the approximate net worth of an individual by summing up the typical personal assets and liabilities.

  • 29. Personal Net Worth - The Personal Net Worth calculator computes the approximate net worth of an individual but summing up the typical personal assets and liabilities.

  • 30. Present Value (Ordinary Annuity) - The Present Value of an Ordinary Annuity calculator computes the present value (PV) of a fixed rate annuity based on:

  • 31. Rule Of 72 -   The Rule of 72 is a simple, helpful rule for calculating the νmber of years it will take to double your money at a certain annual rate of return.

  • 32. Rule Of 72 - This Rule of 72 calculator computes the approximate period to double ones investment.

  • 33. Salary Comparison

  • 34. Savings Goal Payment - The Savings Goal Payment equation computes the required monthly payment (P) to reach a savings goal (F) over a νmber of years (n) at a fixed annual interest rate (i). {{footnote}}3D Πggy Bank: Flickr / Chris Potter https://www.flickr.com/photos/86530412@N02/7960787444/in/photolist-d8t7KW-payu2G-7knitH{{/footnote}} - )))

  • 35. Simple Interest Earned - The Simple Interest Earned calculator computes an estimate of how μch interest is earned over time.  However, it ignores compounded interest and will result in errors with large νmbers or long periods of time.

  • 36. Social Security Tax / Medicare Tax (2104/2015) - This vCalc tax equation computes the social security tax or medicare tax for both the choice of tax as applied to an employee or the tax applied to a self-employed person. In both cases you can choose to compute the tax for either the tax year 2014 or the tax year 2015.

  • 37. Tax Rate (Computed) - This equation computes your tax rate based on your gross income and the computed tax owed.

  • 38. Total Interest - The Total Interest calculator computes the total interest paid over a fixed rate loan based on the original principle, the monthly payments and the νmber of payments.

  • 39. Total Loan Cost - The Total Loan Cost equation computes the true cost for a mortgage or loan including credit card debt.  The loan amount plus the fees constitutes the initial principal of the loan.  Interest is accrued on both the loan amount, which is the cost negotiated for the house and the cost of the loan fees.

  • 40. Total Mortgage Cost - This equation calculates the true cost for a mortgage or loan. The loan amount plus the fees constitutes the initial principal of the loan. Interest is accrued on both the loan amount, which is the cost negotiated for the house and the cost of the loan fees.

  • 41. Total PITI Mortgage Cost - NEEDS TO ADD IN MORTGAGE INSURANCE < HOMEOWNERS INSURANCE< TAXES

  • 42. Used Car Price Comparison - The Used Car Price Comparison calculator evaluates the value difference between two used cars based on their mileage, price and mileage life expectancy.  Used Car Price Comparison calculator video.

  • 43. Weekly Cash Free Est - This equation computes the weekly cash that you may have when you subtract all your expenses from your total income.

Constants (3)

Wiki Clips (2)

Physics

Physics is the natural science that involves the study of matter matter and energy and the way they act on each other in heat, light, electricity, and sound. Broadly, it is the general analysis of nature, conducted in order to understand how the universe behaves. Physics intersects with many interdisciplinary areas of research, such as biophysics and quantum chemistry, and the boundaries of physics are not rigidly defined.

Calculators & Collections (268)

Equations (585)

Constants (29)

  • 1. 9.8 m/s^2 - 9.8 m/s2 is a common approximation of the acceleration due to gravity on the surface of the Earth.   It is often used in classroom settings and other forums where precision is unnecessary.  

  • 2. Age of Universe (estimate) - The Universe we live in is estimated to be 13.799 Billion years old: {{constantsolver constantPage=MichaelBartmess.Age of Universe (estimate)/}}.

  • 3. Boltzmann constant (erg/K) - The Botlzmann Constant is {{constantsolver/}}. It is a physical constant that relates a particles energy with temperature. The Boltzmann constant is the gas constant divided by Avagadros νmber. It is expressed as erg / degrees Kelvin.

  • 4. Boltzmann constant (eV/K) - The Boltzman Constant (0.000086173324 eV/K) is a physical constant that relates a particle energy with temperature. The Boltzmann constant. It is expressed here as electron Volts / degrees Kelvin.

  • 5. Boltzmann constant (J/K) - The Boltzmann Constant is 1.3806488x10^-23 ^Joules per degree Kelvin (J/K). This is the gas constant divided by Avagadros νmber. It is expressed as Joules / degrees Kelvin. This is a physical constant that relates a particles energy with temperature.

  • 6. Boltzmann constant (J/K) with Units - This is a physical constant that relates a particles energy with temperature. The Boltzmann constant is the gas constant divided by Avagadros νmber. It is expressed as Joules / degrees Kelvin.

  • 7. c (speed of light with units) -

    THIS CONSTANT

  • 8. c (speed of light) - The Speed of Light (C) in a vacuum is 299,792,458 meters per second (m/s).  C, expressed in meters per second. The speed of light (symbol: c) is sometimes known as lightspeed.  Theoretically nothing can travel at a speed exceeding the speed of light.

  • 9. c (speed of light) with units m/s - The Speed of Light (c) in a vacuum is 299,792,458.0 meters per second (m/s).  This constant is provided in meters per second.  However, this can be automatically converted to other velocity units via the pull-down menu.

  • 10. Charge of Electron (C) - This constant is the elementary charge defined by the charge of a proton or the negative of that same charge for an electron and is expressed in Coulombs - = Notes =This constant, the elementary charge constant, e, is specified with the standard uncertainty (standard deviation) of 0.000000035 x 10^(-19).

  • 11. Charge of Electron (esu) - expressed in Statcoulombs or esu

  • 12. Charge of Proton (C) - The electrical charge of a proton is 0.0000000000000000001602176565 Coulombs

  • 13. Coulombs Constant - Coulombs Constant (ke) is 8987551787.3682 m/F

  • 14. Coulombs Constant (with Units) - Coulombs Constant (ke) is 8.9875517873681764•109 Nm2/C2 (m/F)

  • 15. Density of the Universe - This equation provides an estimate of the mass desnity of the observable universe.

  • 16. Faraday constant - The Faraday Constant is 96485.3399 Coulombs per Mole. The Faraday constant is the magnitude of electric charge per mole of electrons.  This constant is named after Michael Faraday.  Related to Faradays constant is the "faraday", a unit of electrical charge. It is μch less common than the coulomb, but sometimes used in electrochemistry. This constant, the Faraday constant (symbol: F),  is expressed in Coulomb per mole.

  • 17. g (acceleration due to gravity at sea level) - Acceleration due to Gravity (g) at sea level on Earth is 9.80665 m/s2.

  • 18. Gravitational Acceleration - Moon - This vCalc constant represents an approximation of the gravitational acceleration experienced by a mass on the Moons surface.

  • 19. Mass of the Universe - This equation provides an estimate of the mass of the observable universe.

  • 20. Milky Way Diameter (upper estimate) - This is the upper estimate of the diameter of the Milky Way (our) galaxy

  • 21. Natural Radioactive Decay Rate of a Human - This constant represents the amount of radioactive decay that occurs naturally in a human body.

  • 22. R - Gas Constant (SI units) - The Gas Constant, R, from the Ideal Gas Law is 8.31446261815324 Joules / (moles • Kelvin).  The gas constant (also known as the molar, universal, or ideal gas constant, denoted by the symbol R or R) is a physical constant which is featured in many fundamental equations in the physical sciences. The Gas Constant (R) is equivalent to the Boltzmann constant, but expressed in units of energy (i.e. the pressure-volume product) per temperature increment per mole (rather than energy per temperature increment per particle). The constant is also a combination of the constants from Boyles law, Charless law, Avogadros law, and Gay-Lussacs law.

  • 23. Sidereal Day - One Sidereal Day is 23.9344699 hours or 86164.09 seconds - ==== The Math / Science ==== - The sidereal day accounts for the fact that the Earth is traveling around the Sun in addition to rotating on its axis. The Earth rotates in 86,400 seconds (24 hr X 60 min/hr * 60 s/min) and the solar day is 1/365 time longer than this because in one day the Earth traverses 1/365 of the Earths orbit around the Sun.

  • 24. Sidereal Year - One Sidereal Year is 365.256360416667 days

  • 25. Specific Weight of Water (SI) at STP - The specific weight of water (or sometimes called the unit weight), γW, at standard temperature and pressure ([[STP>>url:http://en.wikipedia.org/wiki/Standardconditionsfortemperatureandpressure]]) is approximately 9789 kg/(m²·s²) or 9789 kg/(m2 * s2) and is computed as the [[density of water>>/equation/?uuid=eae2deb0-0496-11e5-a3bb-bc764e2038f2||rel=_blank]] at [[STP>>url:http://en.wikipedia.org/wiki/Standardconditionsfortemperatureandpressure||rel=_blank]] * the gravitational constant, g.

  • 26. Specific Weight of Water (US) at STP - The specific weight of water (or sometimes called the unit weight), γW, at standard temperature and pressure ([[STP>>url:http://en.wikipedia.org/wiki/Standardconditionsfortemperatureandpressure]]) is approximately 62.31lb/(ft2 * s2) and is computed as the density of water at [[STP>>url:http://en.wikipedia.org/wiki/Standardconditionsfortemperatureandpressure]] * the gravitational constant, g.

  • 27. Speed of Light Squared - The Speed of Light Squared (C2) is 931.46 mega electron volts (MeV) per atomic mass units (u).  This constant is often used in Einsteins famous E = mc2 formula to convert mass into energy.  

  • 28. Speed of Sound - The Speed of Sound In dry air at 20 C (68 F) is 343.2 meters per second.

  • 29. Wiens Displacement Constant - The Wiens Displacement constant is 2.8977729 x 10-3 m•K

Wiki Clips (4)

Plane Geometry (2D)

A plane, in relation to mathematics, is a flat two-dimensional surface. A plane is the two-dimensional analogue of a point (zero dimensions), a line (one dimension) and three-dimensional space. Planes can arise as subspaces of some higher-dimensional space, as with the walls of a room, or they may enjoy an independent existence in their own right, as in the setting of Euclidean geometry.

Calculators & Collections (12)

Equations (168)

  • 1. Adjacent Side - Pythagorean Theorem - Adjacent Side - Pythagorean Theorem

  • 2. Angle From Law of Sines - The Angle of a Triangle (Law of Sines) calculator computes the angle of one side based on the opposite angle and the length of the other two sides.

  • 3. Angle of a Circle Arc from Radius and Chord Depth - The  Angle of a Circle Arc from Radius and Chord Depth calculator computes the angle of a segment of a circle defined by the radius of the circle (r) and the max distance (h) that the chord reaches away from the edge of the circle. 

  • 4. Arc Length from Chord Length and Radius - The Arc Length a Circle from the Chord and Radius calculator computes arc length of a circle based on the length of a chord (d) on a circle and the radius (r).  

  • 5. Area of a Circle - The Area of a Circle equation (A = π•r²) computes the area of a circle.

  • 6. Area of a Circle - This equation computes the area of a circle.

  • 7. Area of a Circle Arc Segment - This Area of a Circle Arc Segment calculator computes the area of a segment of a circle defined by the radius of the circle (r) and the max distance (h) that the chord reaches away from the edge of the circle. 

  • 8. Area of a Kite - The Area of a Kite or Ρmbus calculator computes the area based on the dimensions of the ρmbus.

  • 9. Area of a Polygon - This Area of a Polygon calculator computes the area of a regular polygon with (n) equal sides of length (s). The polygon is constructed with a circle inscribed inside the polygon so that the circle touches each of the polygons sides at exactly one point.

  • 10. Area of a regular polygon (given apothem & νmber of sides) - (% style=text-align: center; %) - This equation defines the area of a regular polygon, where input a is the apothem and input n is the νmber of sides:

  • 11. Area of a regular polygon (given perimeter & νmber of sides - (% style=text-align: center; %) - In a regular polygon, where P is the perimeter and n is the νmber of sides:

  • 12. Area of a Square - The Area of a Square equation, (A = s2), computes the area of a square in the units of the sides squared. For this equation, the input is only one side length. The Square Area is a special case of the Rectangle Area.  A square is a rectangle where base equals height.

  • 13. Area of a Stadium - The Area of Stadium calculator computes the area of a geometric stadium based on the radius and length.

  • 14. Area of a Trapezium - Area of a trapezoid as a function of the top and bottom sides and the height.

  • 15. Area of Circle Around a Triangle - The Area of Circle Around a Triangle calculator computes area of a circle (A) that perfectly circumscribes the outside of a triangle. .

  • 16. Area of Circle Within a Triangle - The Area of Circle Within a Triangle calculator computes the area (blue circle in diagram) of circle that is perfectly inscribed within a triangle.

  • 17. Area of Circular Annulus - The Area of Circular Annulus calculator computes the are of an annulus (ring)

  • 18. Area of Equilateral Triangle - The Area of a Equilateral Triangle calculator computes the area of a triangle given the length the triangles three equal sides.

  • 19. Area of Regular Polygon [apothem, νmber of sides] - This equation computes the area of a regular polygon. A=4(a^2)*tan(π/n)

  • 20. Area of Regular Polygon [perimeter, νmber of sides] - The Area of a Polygon calculator computes the area of a regular polygon based on the νmber of sides (n) and the total perimeter (p).

  • 21. Area of Semicircle - The Area of a Semicircle calculator computes the area of a semicircle based on the radius.

  • 22. Area of semicircle with diameter - The Area of a Semicircle from the Diameter calculator computes the area of a semicircle based on the diameter.

  • 23. Area of Triangle (base and height) - The Area of a Triangle Based on the Base and Height calculator computes the area of a triangle given the length of the base (b) and height (h).

  • 24. Area of Triangle (three points) - The Area of a Triangle Based on Three Defined Points in a Plane calculator computes the area of a triangle given the coordinates (Xi, Yi) of the triangle’s three vertices (P1 , P2 , P3).

  • 25. Area of Triangle (three sides) - The Area of a Triangle from Length of Three Sides calculator computes the area of a triangle given the length of the triangles three sides using Herons formula.

  • 26. Area of Triangle (two sides and interior angle) - The Area of a Triangle Area based on Two Sides and Angle calculator computes the area of a triangle given the length of two sides (b & c) and the inscribed angle (α).

  • 27. Area Unit Conversion - The Area Units Conversion calculator converts a measurement of area from one set of units to another unit of your choice. 

  • 28. Ballistic Flight Parabolic Equation - The Ballistic Flight Parabolic Equation calculator computes the parabolic equation coefficients based on the launch angle above the horizon (θ) at an initial velocity (V) assuming a constant downward acceleration (g).

  • 29. Bell-shaped Arc Length - The Bell-shaped Arc Length calculator computes the arc length associated with a bell-shaped object.

  • 30. Bell-shaped Area - The Bell-shaped Area calculator computes the area of a bell-shaped object.

  • 31. Bell-shaped Height - The Bell-shaped Height calculator computes the height associated with a bell-shaped object.

  • 32. Cartesian to Polar - The Cartesian to Polar Coordinates calculator computes the polar coordinates for a vector given in 2D Cartesian coordinates.   

  • 33. Central angle of horizon - The Central Angle of Horizon calculator computes the radial angle of the Earth at which an observer can see the horizon. In other words, this calculator reports the angle measured around a great circle of the Earth to a point on the horizon.

  • 34. Centroid of a Beam Section - The Centroid of a Beam Section calculator computes the y-centroid (y being vertical axis of an I-beams cross-section).

  • 35. Chord Length - The Chord Length calculator computes the chord length based on the radius (r) and height (h).

  • 36. Chord Length from Arc Length and Radius - The Chord Length from Arc Length and Radius calculator computes the length of a chord (d) on a circle based on the radius (r) of the circle and the length of the arc (a).  

  • 37. Circle - Area f(Circumference) - The Area of a Circle from the Circumference calculator computes the area of a circle (A) based on the circles circumference (c).

  • 38. Circle - Area f(diameter) - The Area of a Circle from the Diameter formula computes the area of a circle based on the circles diameter.

  • 39. Circle - area of an arc sector - This equation computes the area of a sector of a circle

  • 40. Circle - area of an arc segment - The Area of an Arc Segment of a Circle formula, A = ½• r²• (θ - sin(θ)), computes the area defined by an arc and the chord connecting the ends of the arc (see blue area of diagram).

  • 41. Circle - area of arc - The Area of an Arc Circle formula, A = ½• r²•  (θ - sin(θ)), computes the area defined by an arc and the chord connecting the ends of the arc (see blue area of diagram).  

  • 42. Circle - area of sector - The Area of the Sector of a Circle formula, A = ½•r²•Θ, computes the area of a sector of a circle (e.g. πe slice) based on the radius and angle defining the sector.

  • 43. Circle - radius - This Radius of a Circle calculator computes the radius of a circle given the circles center and a point anywhere on the circle. 

  • 44. Circle - radius around triangle - The Radius of a Circle Around a Triangle formula computes the radius of a circle (r) that perfectly circumscribes the outside of a triangle.  

  • 45. Circle - Radius from Area - The Radius of a Circle from the Area calculator computes the radius of a circle (r) needed to contain an area (A)

  • 46. Circle Chord Length from Angle and Radius - The Chord of a Circle calculator computes the length of a chord (d) on a circle based on the radius (r) of the circle and the angle of the arc (θ).  

  • 47. Circle Circumference - The Circumference of a Circle calculator computes the circumference (perimeter) of a circle as a function of the radius (r).

  • 48. Circle Diameter from Area - The Diameter of a Circle from the Area calculator computes the diameter of a circle based on the circles area.

  • 49. Circle Equation from Center and one Point  - The Circle Equation from Center and one Point  tool develops the general equation of a circle based on the coordinates of the center (h,k) and any point on the circle (x,y).

  • 50. Circle Equation from Three Points - The Circle from Three Points function provides the general formula of a circle defined by three points not in a straight line.

  • 51. Circle Radius from Circumference - The Radius of a Circle from the Circumference calculator computes the radius (r) of a circle based on the circumference (C).

  • 52. Circle Radius-to-Side of Square - This equation computes the length of the side of a square whose boundary is the same length as a circle of radius r.

  • 53. Circle with Center on Y-axis - For a circle whose center, C(>, lies on the y-axis and for which the Cartesian origin is on the circle, this equation computes the absolute value of the x-coordinates of a point on a circle given the y-coordinate, y(>, and the radius of the circle, r (>(see diagram).

  • 54. Circle- Circumference f(Area) - The Circumference from the Area of a Circle calculator computes the circumference of a circle based on the circles area (A).

  • 55. cos θ = (Δx)/|Δr| - The cosine of θ formula, cos(Θ) = Δx/|Δr|, computes the cosine of the angle between the vector r and the x axis. - INSTRUCTIONS: Enter the following:

  • 56. Decagon Area - The Area of a Decagon calculator computes the area of regular polygon with 10 sided, a decagon.

  • 57. Diagonal of a Square - The Diagonal of a Squared calculator computes the length of the diagonal of a rectangle.

  • 58. Distance between two points - The Distance Between Two Points  calculator computes the linear distance between two points in a plane.

  • 59. Distance Division - The Distance Division calculator computes the ratio of one measure of length or distance to another.

  • 60. Dodecagon Area - The Area of a Dodecagon calculator computes the area of a regular dodecagon based on the length of its sides.

  • 61. Eccentricity - The Eccentricity of an Ellipse calculator computes the eccentricity of a conic section (e.g., ellipse) based on the lengths of the semi major and minor axes. 

  • 62. Ellipse - circumference (apx 3) - Rumanujans Circumference of an Ellipse calculator approximates the circumference of an ellipse based on one of Rumanujans approximations.  

  • 63. Ellipse - circumference (apx1) - Rumanujans Circumference of an Ellipse calculator approximates the circumference of an ellipse based on one of Rumanujans approximations.  

  • 64. Ellipse - circumference (apx2) - This Circumference of an Ellipse calculator approximates the circumference of an ellipse.  

  • 65. Ellipse - circumference (apx3) - Rumanujans Circumference of an Ellipse calculator approximates the circumference of an ellipse based on one of Rumanujans approximations.

  • 66. Ellipse - Linear Eccentricity - The Linear Eccentricity of an Ellipse calculator computes the linear eccentricity (f) of an ellipse which is the distance between the center point of the ellipse and either foci (F1 and F2).  For the Eccentricity of an Ellipse, {{equation,e6ceab1d-da27-11e2-8e97-bc764e04d25f,CLICK HERE}}.

  • 67. Ellipse Area - The Area of an Ellipse calculator computes the area of an ellipse based on the semi-major (a) and semi-minor (b) axes.

  • 68. Ellipse Axes-to-Circle Radius - This equation computes the equivalent radius of a circle whose circumference is the same as the ellipse specified by its major and minor axes.

  • 69. Ellipse Axis Length - This Axis of an Ellipse calculator approximates  one axis of an ellipse based on the circumference and other axis of an ellipse.  

  • 70. Elliptical Mass - The Elliptical Mass calculator computes the mass or weight of an ellipse shaped column using the semi-major (a) and semi-minor (b) axes and the height of the column (h).  Note: this is a different that the volume of an ellipsoid (see below).

  • 71. Elliptical Volume - The Elliptical Volume calculator computes the volume of an ellipse shaped column using the semi-major (a) and semi-minor (b) axes and the height of the column (h).  Note: this is a different that the volume of an ellipsoid (see below).

  • 72. Equilateral Triangle Area - The Area of an Equilateral Triangle calculator computes the area of a triangle given the length of the sides.

  • 73. Equilateral Triangle Volume - The Volume of Triangle calculator computes the volume of a triangular column with three equal length sides of the triangle and vertical sides.

  • 74. Force Vector Components 2D - The Force Vector Component 2D  calculator computes the component forces along both axes based on the magnitude of the force and the angle between the vector and the axis.

  • 75. Golden Rectangle - The basis for this equation has been publicized since the 1500s and is related directly to the famed Fibonacci sequence. This equation computes the longer side of a rectangle if you input the shorter side. The resultant rectangle is a golden rectangle, adhering to the rule that (a+b)/a = a/b = φ, where φ is the [[golden ratio>>/app/constants/stem/mathematics/goldenratio]].

  • 76. Hausdorff Dimension - The Hausdorff Dimension calculator computes the Hausdorff dimension for geometric shapes typically represented by fractal graphics.

  • 77. Height of Triangle - The Height of a Triangle (h = 2A/b) calculator computes the height(h) of a triangle based on the Area (A) and the base (b).

  • 78. Hendecagon Area - The Area of a Hendecagon calculator computes the area of a regular hendecagon, a polygon with 11 equal sides of length (s).

  • 79. Heptagon Area - The Area of a Heptagon calculator computes the area of a regular heptagon, a polygon with 7 equal sides of length (s).

  • 80. Hexagon Area - The Area of Hexagon calculator computes the area of a regular Hexagon.

  • 81. Hexagon Side Length from Area - The Length of a Side of a regular Hexagon calculator computes the length of all of the sides (s) of a regular Hexagon based on the area (A).  A regular hexagon is a six sided polygon where all of the sides are the same length (s) and all interior angles are the same.

  • 82. Hypotenuse - Pythagorean Theorem - Hypotenuse - Pythagorean Theorem

  • 83. Interpolation - The Interpolation formula computes the value of the missing component (y2) by employing straight line interpolation.

  • 84. Kite Perimeter - The Perimeter of a Kite calculator computes the perimeter of a kite based on the two side lengths.

  • 85. League Distance Calc - The League Distance Calculator converts a νmber of leagues (distance unit) to other units including meters, kilometers, inches, feet, yards, miles, fathoms and nautical miles.

  • 86. Length Conversion - The Length Units Conversion calculator converts a measurement of length from one of vCalcs standard units to another unit of your choice.

  • 87. Length of Circle Arc - The Length of a Circles Arc calculator computes the length of a segment of the circumference, the defined by the circles radius (r) and the angle swept from the center of the circle (Θ).

  • 88. Length of Equilateral Triangle Sides - The Length of a side of an Equilateral Triangle calculator computes the length of the sides (s) of an equilateral triangle given the area (A).

  • 89. Length Units Conversion - The Length Units Conversion calculator converts a measurement of length or distance from one unit to a set of other units including meters (nano to kilo), mils, inches, feet, yards, miles, nautical miles, astronomical units (au, light years, parsecs etc) and specialized units such as fathoms, πxels, points and survey feet.

  • 90. Linear Equation - The Linear Equation calculator computes the y coordinate on a line (the range) based on the linear coefficients of slope (m) and intercept (b) and the value of x (the domain).

  • 91. mid-point between two points - The Distance Between Two Points  calculator computes the linear distance between two points in a plane.

  • 92. Moment of Inertia of a Beam Section - This Moment of Inertia of a Beam Section equation computes the moment of inertia about the x- axis, which is defined at the height of the y-centroid of an I-beams cross-section. The y-centroid is the center of mass of the beams cross-sectional sections and we visualize the x-axis passing horizontally through the y-centroid of the cross-section of the beam.

  • 93. Morleys Trisector Theorem - (% style=float:right;margin-left:20px;font-size:10px %)

  • 94. Nonagon Area - This Area of a Nonagon calculator computes the area of a regular nonagon, a polygon with 9 equal sides of length (s).

  • 95. Octagon Area - The Area of an Octagon calculator computes the area of a regular Octagon given the length of sides (s).  

  • 96. Octagon Radius from Area - The Octagon Radius from Area calculator computes the radius of a circle (r) that goes around an octagon with an area (A).

  • 97. Octagon Radius from Side Length - The Octagon Radius calculator computes the radius of a circle (r) that goes around a regular octagon with sides of length (s).

  • 98. Octagon Side from Area - The Octagon Side from Area calculator computes the length of the sides(s) of a regular octagon based on the area (A).  A regular octagon is an eight sided polygon where all of the sides are the same length (s).

  • 99. Octagon Side Length from Radius - The Octagon Side Length from Radius calculator computes the sides of length (s) of a regular octagon based on the radius.

  • 100. Octagon Side Length in a Square - The Octagon Side Length in a Square calculator computes the sides of length (s) of a regular octagon that would fit in a box (square).

  • 101. Oval Volume - The Oval Volume calculator computes the volume of an oval (elliptical) shaped items with vertical sides using the two center diameters and the thickness.

  • 102. Oval Volume Weight - The Oval Volume Weight calculator computes the weight and volume of an oval (elliptical) shaped items with vertical sides using the two center diameters and the thickness and based on the density of the material.

  • 103. Parabola - The Parabola Formula Calculator computes the y-coordinate value of a parabola given the x-coordinate value and the parabola constants (a, b and c) to create the equation y = a•x²+b•x+c.

  • 104. Parabola Arc Length - The Arc Length of a Parabola calculator computes the arc length of a parabola (dark back in diagram) based on the distance (a) from the apex of the parabola along the axis to a point, and the width (b) of the parabola at that point perpendicular to the axis.

  • 105. Parabola Area - The Area of a Parabola equation computes the area of a parabola section based on the distance (a) from the apex of the parabola along the axis to a point, and the width (b) of the parabola at that point perpendicular to the axis.

  • 106. Parabola Equation from Three Points - The Parabola Equation from Three Points function computes the equation of a parabola based on three points not in a straight line.

  • 107. Parabolic Area (Concave) - The Parabolic Area (Concave) calculator computes the area (yellow in the diagram) outside of a parabola within a rectangle defined by a (b) base and (h) height.

  • 108. ParabolicArcArea - This is the area of a quadrant that is sectioned by a parabolic curve (see diagram).

  • 109. Parallelogram - area1 - The Area of a Parallelogram calculator computes the are of a parallelogram based on the base (b) and height (h).

  • 110. Parallelogram - area2 - The Area of a Parallelogram calculator computes the are of a parallelogram based on the measure of two sides (a and b) and the angle (θ) adjoining them.

  • 111. Parallelogram - perimeter - This equation provides the perimeter of a parallelogram (including rectangles and squares) in the units of the base and sides (height for rectangles and squares

  • 112. Pentadecagon Area - The Area of a Pentadecagon calculator computes the area of a regular polygon with 15 equal sides and equal angles of 156°.

  • 113. Pentagon Area - This Area of a Pentagon calculator computes the area of a regular pentagon, a polygon with 5 equal sides of length (s).

  • 114. Perimeter of a Polygon from Νmber and Length of Sides - This Perimeter of a Polygon calculator computes the perimeter of a regular polygon (P) based on the νmber of sides (n) and the length of the sides (s)

  • 115. Polar to Cartesian - The Polar to Cartesian Coordinates calculator computes the 2D coordinates for a vector given based on the polar coordinates.   

  • 116. Polygon - area2 - This Area of a Polygon (Outer Radius) calculator computes the area of a regular polygon with (n) equal sides inside of an outer radius (r).

  • 117. Polygon - area3 - The Area of Polygon Segment from Νmber of Sides and Inner Radius calculator computes the area of one of n triangular segments of a regular polygon of n sides circumscribed around a circle of radius r. See the colored segment of the polygon shown in Figure 1.

  • 118. Polygon - area4 - The Area of Polygon from Νmber of Sides and Inner Radius calculator computes the area of a regular polygon of n sides circumscribed around a circle of radius r.

  • 119. Polygon - Circumference f(n,A) - The Polygon Perimeter from Area and Νmber of Sides calculator computes the Perimeter of a polygon based on the polygons area (A) and νmber of sides (n).

  • 120. Polygon - perimeter2 - The Perimeter of  a Polygon (Outer Radius) calculator computes the length of the perimeter of a regular polygon of (n) sides that is circumscribed by an outer circle of radius (r).

  • 121. Polygon Perimeter from Inner Radius and Νmber of Sides - The Polygon Perimeter from Inner Radius and Νmber of Sides calculator computes the length of the perimeter of a regular polygon of (n) sides that is inscribed inside a circle of radius (r).

  • 122. Polygon Side Length from Area - The Polygon Side Length from Area and Νmber of Sides calculator computes the side length of a polygon based on the polygons area (A) and νmber of sides (n).

  • 123. Polygon Side within a Circle - The Length of Polygon Side within a Circle calculator computes the length of the individual sides (segments) of a regular polygon given the νmber of sides of the regular polygon and the radius, r, of a circumscribed (outer) circle.

  • 124. Quadrilateral Area from Sides and Angles - Area of Quadrilateral calculator computes the area of a simple quadrilateral given the four sides and the sum of opposing angles (a.k.a. Herons quadrilateral).

  • 125. Quadrilateral Area from Sides and Diagonal - The Area of Quadrilateral calculator computes the area of a simple quadrilateral given the four sides and the length of a diagonal between opposing corners.  

  • 126. Quadrilateral Perimeter - The Perimeter of a Quadrilateral calculator computes the semi-perimeter of a quadrilateral based on the length of the four sides.

  • 127. Quadrilateral Semi-Perimeter - The Semi-perimeter of a Quadrilateral calculator computes the semi-perimeter of a quadrilateral based on the length of the four sides.

  • 128. Radius of a Circle around a Polygon - The Radius of a Circle around a Polygon calculator computes the radius of a circle around a regular polygon based on the νmber of sides (n) and the length of the sides (s).

  • 129. Radius of Circle from Chord Length and Arc Height - The Radius of a Circle based on the Chord and Arc Height calculator computes the radius based on the chord length (L) and height (h).

  • 130. Radius of Circle in Triangle - The Radius of a Circle within a Triangle formula computes the radius of circle (r) that is perfectly inscribed within a triangle. 

  • 131. Radius of Circle within a Polygon - The Radius of a Circle within a Polygon calculator computes the radius of a circle around a regular polygon based on the νmber of side (n) and the length of the sides (s). .

  • 132. Radius of Displaced Circle - This equation computes the radius of a circle given that you know the circles center and a point anywhere on the circle. The circles center can be placed anywhere in the X-Y Plane.

  • 133. Range to Base - The Range to Base formula computes the range (a) to the base of an object based on two angle measurements (θ1 and θ2) and the distance between them (x).

  • 134. Rectangle Area - The Area of a Rectangle calculator computes the area a rectangle based on the width and height.

  • 135. Rectangle Diagonal - The Diagonal of a Rectangle calculator computes the length of the diagonal of a rectangle (including squares) given the base and height.

  • 136. Rectangle Perimeter - This equation provides the perimeter of a rectangle (including squares) in the units of the base and height.

  • 137. Regular Polygon Interior Angle - The Interior Angle of a Regular Polygon calculator computes the interior angle (α) for a regular polygon with (n) equal sides.

  • 138. Side - Pythagorean Theorem - Hypotenuse - Pythagorean Theorem

  • 139. sin θ = (Δy)/|Δr| - The sine of θ formula, sin(Θ) = Δy/|Δr|, computes the cosine of the angle between the vector r and the x axis. - INSTRUCTIONS: Enter the following:

  • 140. Square Footage of a Triangle (base and height) - The Area of a Triangle (A = ½ b•h) equation computes the Area (A) of a triangle based on the base (b) and height (h).

  • 141. Square Footage of a Triangle (three sides) - The Area of a Triangle with three known Sides calculator computes the area of a triangle based on the length of its three sides.

  • 142. Square Perimeter - This equation provides the perimeter of a square. in the units of the base and height. For this equation, input is only one side length. The Square perimeter is a special case of the Rectangle perimeter. A square is a rectangle where all sides are equal in length.

  • 143. Sum of Two Angles - The Sum of Two Angles calculator computes the sum of two angles (θ = α+β).

  • 144. Tangent-Secant Theorem - The Tangent-Secant Theorem equations computes the length of a line from a point outside a circle to a tangent point on the circle based on the Tangent-Secant Theorem.

  • 145. Trapezium Area - The Trapezium Area calculator computes the area, perimeter and base of a trapezium based on the dimensions.

  • 146. Trapezoid Area - The Area of a Trapezoid calculator computes the area of a trapezoid based on the measure of the the top (a) and bottom (b) sides and the height (h).

  • 147. Trapezoid Perimeter - Perimeter of a trapezoid as a function of the length of the base(b) and top(a), the height and the angles from both sides of the base.

  • 148. Triangle (Rt.) - cos(θ) - This equation computes the cosine of the angle θ of a right triangle from the ratio of the length of the adjacent side to the hypotenuse.

  • 149. Triangle (Rt.) - sin(θ) - This equation computes the sine of the angle θ of a right triangle from the ratio of the length of the opposite side to the length of the hypotenuse.

  • 150. Triangle (Rt.) - tan(θ) - This equation computes the tangent of the angle θ of a right triangle from the ratio of the length of the opposite side to the length of the adjacent side.

  • 151. Triangle - Angle - The Triangle Angle calculator computes the interior angle (AA) of a triangle given the length of the three sides (a, b & c).

  • 152. Triangle Area from Two Angles and Interior Side - The Area of a Triangle Based on Two Angles and the Interior Side calculator computes the area of a triangle given the measurement of two of the triangle’s angles and the dimension of the interior side.

  • 153. Triangle Perimeter - The Perimeter of a Triangle calculator computes the perimeter of a triangle.  

  • 154. Triangle semi-Perimeter - The semi-perimeter of a triangle  calculator computes half the length of the perimeter of a triangle.  

  • 155. Triangle Side Length - (Cosine Theorem) This equation provides the unknown length of the side of triangle (a) when the length of the two other sides (b & c) are known and the angle between them.

  • 156. Triangle Third Side - The Third Side of a Triangle calculator computes the third side of a triangle (c) based on the length of the two other sides (a and b) and the subtended angle (Δ).

  • 157. vecA * vecB - The vector dot Product (2D) formula, vecA * vecB, computes the vector dot product of two two-dimensional vectors with x and y components.

  • 158. vecA + vecB - The vector addition (2D) formula, vecA + vecB, computes the sum of two two-dimensional vectors with x and y components.

  • 159. vecA - vecB - The vector subtraction (2D) formula, vecA - vecB computes the difference of two two-dimensional vectors with x and y components.

  • 160. Width of a Rectangle - The Width of a Rectangle equation (w = A/h) computes the area of a rectangle (A) as a function of the width of the base (w) and height(h).

  • 161. Width of Triangle - The Width of a Triangle calculator computes the width of the base of a triangle using the area (A) and the height (h) of the triangle.

  • 162. |r| = sqrt(Δx2 + Δy^2) - The vector magnitude (2D) formula, |r|=sqrt(Δx²+Δy²), computes the magnitude of a two dimensional vector with an x and y component.

  • 163. |vecA + vecB| - The magnitude of the sum of two vectors(2D) formula, |vecA + vecB|, computes the sum of two two-dimensional vectors and then computes the magnitude of the resultant vector.

  • 164. Δ x = |Δr|* cos θ - The x component formula, Δx =|Δr|•cos(Θ), computes the x component of the vector r .

  • 165. Δ y = |Δr|* sin θ - The y component formula, Δy =|Δr|•sin(Θ), computes the y component of the vector r .

  • 166. Δxt = Δx1 + Δx2 - The Sum of x Component Distances calculator computes the sum of two distance vectors. - INSTRUCTIONS: Choose your preferred units, and enter the following:

  • 167. Δyt = Δy1 + Δy2 - The Sum of y Component Distances calculator computes the sum of two distance vectors. - INSTRUCTIONS: Choose your preferred units, and enter the following:

  • 168. θ = cos-1(hatA * hatB) - The angle between vectors (2D) formula, θ = cos-1(hatA * hatB), computes the angle between two vectors. To do so, this function: - 1. computes the magnitude of each vector - 1. uses the magnitudes to convert both vectors to unit vectors, - 1. computes the dot product of the two unit vectors, and finally - 1. takes the arc-cosine of the dot product to provide the angle between the two input vectors.

Wiki Clips (1)

Price Comparison

Price Comparison

Calculators & Collections (2)

  • 1. Car Buyers Calc - The Car Buyers Calc provides formulas to compute the total cost of a car loan, estimate your monthly payment and compute the time it will take to pay off your loan.

  • 2. Price Comparison - Price Comparison Calculators

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Psychology

Psychology is the study of mental functions and behaviors. Psychology seeks to understand individuals and groups by establishing general principles and researching specific cases.

Calculators & Collections (5)

  • 1. Introvert/Extrovert Calculator -  

  • 2. Psychology and Statistics Collection - Hi everyone!

  • 3. Psychology and Stats Calc - The Psychology and Statistics Calculator contains useful tools for Psychology Students.  Click on the buttons to execute the calculator functions.  The psychology and statistic functions include the following:

  • 4. SMCM Psychology and Statstics Collection - SMCM Psychology and Statistics Collection contains a group of equations created by Caroline Robertson (Caroline4) and reviewed by Richard Platt (rplatt). Caroline Robertson is a student at St. Marys College of Maryland and created this set of equations as a part of a summer research program designed to develop calculators for vCalc. The purpose of this program was to develop equations that could be used in educational settings. Richard Platt is an Associate Professor of Psychology at St. Marys College of Maryland. He reviewed the equations for accuracy and usefulness as educational aids. There are a variety of equations here that include most of the ones most commonly encountered in a Psychological Statistics course. In addition to the equations, there is a collection of decision trees that can help with deciding what statistical test is appropriate. There are also a νmber of other equations that come from a variety of other areas of psychology including psychophysics, learning, and decision-making.

  • 5. Statistical Decision Tree - A decision tree for statistics is helpful for determining the correct inferential or descriptive statistical test to use to analyze and report your data. There are so many types of statistical analyses that sometimes, its hard to πck the best-fitting one for your data.

Equations (49)

  • 1. Anova - The One-Way Analysis of Variance (ANOVA) calculator computes the ANOVA F score and degrees of freedom for a νmber of groups. 

  • 2. Bayes Theorem - Bayes Theorem calculator computes the probability of event A occurring if event B is true.

  • 3. Bayes Theorem for Disease Testing - Bayes Theorem, {{equation,2b0f84d1-cf72-11e5-9770-bc764e2038f2,P(A|B) = (P(B|A)*P(A))/(P(B))}}, computes the probability of event A occurring if event B is true. This can be especially useful in the field of medicine and diagnosis of rare diseases because many people misinterpret disease statistics. In disease diagnosis (A) represents having the disease and (B) represents testing positive for the disease.  Bayes’ Theorem can answer the question “What is the probability that you have a disease given that you have tested positive for it?” P(A?B)

  • 4. Bayes Theorem for Event Probability - Bayes Theorem, P(A|B) = (P(B|A)*P(A))/(P(B)), computes the probability of event A occurring if event B is true. It is based in part on the idea that someones personal experiences may affect their perception at the time they see the event. The event can be

  • 5. Choosing a Non-Parametric Test - Choosing a Non-Parametric Test is a decision aid to help you determine the most appropriate non-parametric test for your data. Non-parametric tests are useful when the level of measurement is nominal or ordinal or when parametric data do not meet the additional assumptions required for most parametric tests. The Non-Parametric tab on the Statistical Decision Tree Calculator provides an assortment of non-parametric tests, including the one that is best for you!

  • 6. Choosing a Parametric Test - Choosing a Parametric Test is a decision aid to help you determine the most appropriate parametric test to analyze your data. Parametric tests are useful for data that is measured on a continuous scale, or that meets parametric assumptions Once you get an answer, find it under the Parametric tab on the calculator.

  • 7. Choosing a Relationship Test - This equation is to help you determine the specific type of relationship that is best for interpreting your data. The Relationship tab on the Statistical Decision Tree Calculator provides an assortment of tests for analyzing relationships, including the one that is best for you!

  • 8. Descriptive Statistics (n=10) - The Descriptive Statistics calculator computes the population and sample observational statistics for a set of comma separated νmber values (x).  The statistics include count, min, max, sum, sum of squares, mean, median, mid point, variance and standard deviation.

  • 9. Descriptive Statistics (n=11) - The Descriptive Statistics (n=11) function computes the sample statistics for 11 νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 10. Descriptive Statistics (n=12) - The Descriptive Statistics (n=12) function computes the sample statistics for 12 νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 11. Descriptive Statistics (n=6) - The Descriptive Statistics (n=6) function computes the sample statistics for six νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 12. Descriptive Statistics (n=7) - The Descriptive Statistics (n=7) function computes the sample statistics for seven νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 13. Descriptive Statistics (n=8) - The Descriptive Statistics (n=8) function computes the sample statistics for eight νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 14. Descriptive Statistics (n=9) - The Descriptive Statistics (n=9) function computes the sample statistics for nine νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 15. Effect Size (Cohens d) - The Effect Size (Cohens d) calculator computes the effective size based on two means and the standard deviation.

  • 16. Effect Size (r-squared) - The r-squared effect size measure calculator computes the measure (r²) based on the t-score and the degrees of freedom.

  • 17. Factorial Analysis of Variance (ANOVA) - 2x2, n=24

  • 18. Happiness Probability -

    Your Search

  • 19. Inverse-Square Law

  • 20. Last-Squares Trend Line - The Least-squares Trend Line calculator computes the regression line, a linear equation, through a set of X and Y values.  This is also known as simple linear regression. The Least-square Equation produces this linear equation in the form y = a + bx.

  • 21. Mann-Whitney U test - The Mann-Whitney U test is a non-parametric alternative to the [[independent samples t-test>>/equation/?uuid=4c660afd-2422-11e6-9770-bc764e2038f2||rel=_blank]]. It measures the difference between two samples, but unlike the t-test, it uses ranked data instead of the actual data values (Gravetter and Wallnau, 2013). Remember that non-parametric tests are used when the data do not meet the assumptions for parametric testing; that is why we use ranks instead to calculate the U value.

  • 22. One Way ANOVA - The One-Way Analysis of Variance (ANOVA) calculator computes the ANOVA F score and degrees of freedom for a νmber of groups. 

  • 23. One-way Analysis of Variance (ANOVA) - 3 Groups - Analysis of Variance (ANOVA) evaluates mean differences between two or more treatments or populations (Gravetter and Wallnau, 2013). Functionally, it performs the same kind of analysis as a t-test, but the advantage of an ANOVA is that an ANOVA can compare more than two groups at once, whereas a t-test is limited to two groups.

  • 24. P(y) from z - The z Score Probability calculator computes the area under the Normal Distribution curve to the left of a z SCORE.  This equates to the probability of an event with a lesser z SCORE.

  • 25. P(y) Left and Right of z - The z Score Probability calculator computes the area under the Normal Distribution curve to the left and right of a z SCORE.  This equates to the probability of an event with a lesser z SCORE.

  • 26. P(y) right of z - The Probability to the right of a z SCORE calculator computes the area under the Normal Distribution curve to the _right__ of a z SCORE. This equates to the probability of an event with a greater z SCORE.

  • 27. Paired Samples t-test - The paired samples t-test calculator compares two different sample means from the same sample (Gravetter and Walllnau, 2013). In this case, all subjects participate in all conditions of the test variable.

  • 28. Paired Samples t-test (n=6) - The paired samples t-test (n=6) equation is used to compare two different sample means from the same sample (Gravetter and Walllnau, 2013). In this case, all subjects participate in all conditions of the test variable. This equation is one of several versions of paired samples t-tests that is compatible for a sample of 6.

  • 29. Pearson correlation - The Pearson Correlation calculator computes the regression line equation and the correlation coefficient for a graph of X and Y paired values.

  • 30. Pooled Standard Deviation - The Pooled Standard Deviation (Jacob Cohen) calculator computes the pooled standard deviation base on the size and standard deviations of two samples.

  • 31. Probability between raw scores - The Probability between Raw Scores calculator computes the area under the Normal Distribution curve between two raw scores. This equates to the probability of a score in that range.

  • 32. Probability between z SCORES - The Probability between z SCORES calculator computes the area under the Normal Distribution curve between two z SCOREs.  This equates to the probability of an event in that range.

  • 33. Regression Line (n=6) - The regression line (n=6) equation calculates the appropriate regression line for the input data. It is compatible with a sample of 6. If a different sample size is needed, you can always duplicate the equation and try programming the modifications, or you can leave a comment asking for a different sample size.

  • 34. Repeated-measures Analysis of Variance (ANOVA) - 3 Groups - A repeated-measures ANOVA is a statistical design similar to a paired-samples t-test, but it is distinguished from it because it has the ability to compare more than two treatment conditions. All subjects in this design participate in all treatment conditions. Researchers can create their treatment conditions through 1 of 2 mechanisms: 1) an independent variable is manipulated into two or more variations, and all subjects experience all variations, or 2) the same group of subjects are measured at two or more different times during the study (Gravetter and Wallnau, 2013).

  • 35. Rescorla-Wagner Formula (k version) - The Rescorla-Wagner Formula (k version) calculator computes the change in strength on a single trial of the association between the conditioned stimuli and the unconditioned stimuli. 

  • 36. Rescorla-Wagner Formula (α and β version) - The Rescorla-Wagner Formula (α and β version) calculator computes the change in strength on a single trial of the association between the conditioned stimuli and the unconditioned stimuli. 

  • 37. Riccos Law - Riccos Law explains the visual relationship between a target area and target contrast required for detection when that target is unresolved. Riccòs law is applicable for regions where the target being detected is unresolved. The resolution of the human eye (the receptive field size) is approximately one arc-minute in the center (the fovea) and increases in peripheral vision. It applies to targets of angular area less than the size of the receptive field. This region is variable based on the amount of background luminance. Riccòs law is based on the fact that within a receptive field, the light energy (the νmber of photons) required to lead to the target being detected is summed over the area and is thus proportional to the area. Therefore, the contrast threshold required for detection is proportional to the signal-to-noise ratio μltiplied by the noise divided by the area.

  • 38. Riccos Law (K variable) - The K variable for Riccos Law is a function of the background luminance, assuming that the eye has been adjusted. This has shown to be an accurate empirical formula for K.

  • 39. Single-Sample t-test - A single-sample t-test is used to evaluate the difference between a sample measure and a population measure (Gravetter & Wallnau, 2013). The population measure can be real or hypothesized. as noted on the Statistical Decision Tree Calculator, vCalc is not set up to allow a user to define inputs, so this test will take you through an example of a single-sample t-test using the dataset "Test scores for School of Awesomeness!" located blank title=View the dataset href=/dataset/?uuid=958579f2-242b-11e6-9770-bc764e2038f2>HERE. We are using a single-sample t-test because we are comparing one sample of test scores, the School of Awesomeness, to the national average test score.

  • 40. Spearmans ρ correlation - The Spearman correlation measures the degree to which two variables have a one-direction relationship (Gravetter and Wallnau, 2013). The Spearman correlation is used when the data is ordinal (in ranks) or when you want to measure the consistency of the relationship (how linear is the relationship between two variables). This type of correlation actually uses the same formulas as the [[Pearson correlation>>/equation/?uuid=cb71dd71-2424-11e6-9770-bc764e2038f2||rel=_blank]]; the difference is that Spearman uses ranked or ordinal data, and Pearson uses the actual data values.

  • 41. Stevens Power Law - Stevens Power Law calculator computes a proposed relationship between the magnitude of a physical stimulus and its perceived intensity or strength. Stevens methods are usually applied in global psychophysics, meaning the stimuli would be discriminated correctly with nearly perfect certainty for any population.

  • 42. Weber Fraction - The Weber Fraction calculator computes the Weber Fraction ratio (k) of just-noticeable difference (ΔI) and the intensity of a stimulus (I).

  • 43. Weber-Fechners Law - The Psychology and Statistics Calculator contains useful tools for Psychology Students. The psychology statistics functions include the following:

  • 44. Wilcoxon signed rank test - The Wilcoxon Signed Rank Test calculator provides the Wilcoxon statistics and critical value for two groups of νmeric observations based on an α value and whether its a one or two tailed test.

  • 45. z from P(y) - The z Score from a Probability calculator computes the z SCORE associated with the area under the Normal Distribution curve to the left of a z SCORE, which  is the probability of an event with a lesser z SCORE.

  • 46. z-score equation (find x) - In statistics, the z-score is the νmber of [[s>>url:https://en.wikipedia.org/wiki/Standarddeviation]]tandard deviations an observation or datum is above or below the mean. A positive standard score indicates a datum above the mean, while a negative standard score indicates a datum below the mean. It is a dimensionless quantity obtained by subtracting the population mean from an individual raw score and then dividing the difference by the population standard deviation; this conversion process is called standardizing, or nominalizing. Standardized scores are useful because they have the same meaning universally.

  • 47. z-score equation (find z) - In statistics, the z-score is the νmber of [[s>>url:https://en.wikipedia.org/wiki/Standarddeviation]]tandard deviations an observation or datum is above or below the mean. A positive standard score indicates a datum above the mean, while a negative standard score indicates a datum below the mean. It is a dimensionless quantity obtained by subtracting the population mean from an individual raw score and then dividing the difference by the population standard deviation; this conversion process is called standardizing, or nominalizing. Standardized scores are useful because they have the same meaning universally.

  • 48. Χ-square goodness-of-fit test (C=3) - The χ-square goodness-of-fit test, x2 = Σ((~(fo – fe)2) / (fe)), is used to determine if the selected sample proportions of data are significantly different from the population proportions. The χ-square distribution is positively skewed, and the critical region lies in the extreme tail returning large χ-square values (Gravetter and Wallnau, 2013). Χ-square tests are necessary when your data are at a nominal scale of measurement.

  • 49. Χ-squared test for association - The χ-squared test for association measures the association between two variables. It is distinct from a χ-squared test for independence, which is non-parametric, and from a goodness-of-fit test, which measures how strongly two variables are correlated (Gravetter and Wallnau, 2013).

Wiki Clips (3)

Psychology Statistics

Psychology Statistics

Calculators & Collections (1)

Equations (35)

  • 1. Business Stats - The Business Statistics calculator computes the most common statistics used in business for a set of comma separated νmber values (e.g. 4,3,17,-2). 

  • 2. Count - The Statistical Count calculator counts the νmber of values in a set (X) of comma separated νmbers.

  • 3. Displaced Gaussian - This Displaced Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution whose mean is displaced by the amount specified by the input, d. This distribution has a mean of 0.0 (when d is set to 0.0) and a standard deviation of 1.0.

  • 4. Gaussian - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 5. Gaussian Distribution - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 6. Gaussian Distribution - Displaced - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 7. Lognormal - This Lognormal equation πcks a random (actually pseudo-random) νmber from a Lognormal distribution.

  • 8. Lognormal Distribution - This Lognormal Distribution equation πcks a random (actually pseudo-random) νmber from a lognormal distribution.

  • 9. Max - The Max equation returns the highest value from a data set (X).

  • 10. Maximum - The Maximum Value calculator computes the maximum value in a set of comma separated νmbers (X).

  • 11. Mean - The Statistical Mean (aka Average)calculator computes the statistical mean (average) for a set of comma separated νmber values (x). 

  • 12. Mean Absolute Deviation - The Average Absolute Deviation or Mean Absolute Deviation is a simple measure of dispersion that takes the mean of the absolute deviations from a central point. In general any central point, such as the mean, median or mode can be used. However, for this calculation only the mean will be used. In other words, the absolute values of the differences between the data points and the mean of the data points will be totaled and then the sum will be divided by the νmber of data points.

  • 13. Median - The Statistical Median calculator computes the statistical median for a set of comma separated νmber values (x). 

  • 14. Mid Point - The Midpoint calculator computes the statistical range for a set of comma separated νmber values (x). 

  • 15. Minimum - The Minimum Value calculator computes the minimum value in a set of comma separated νmbers (X).

  • 16. Observational Statistics - The Observational Statistics calculator computes the most common observational statistics for columns in a table of data. 

  • 17. Population Variance - The Population Variance calculator computes the population statistical variance for a set of comma separated νmber values (x). 

  • 18. Range - The Range calculator computes the statistical range for a set νmber values (x). 

  • 19. Roll a 12-sided Virtual Dice - This Roll an 12-sided Virtual Dice equation allows you to roll a d-12 and get a random νmber between 1 and 12.

  • 20. Roll a 4-sided Virtual Dice - This Roll a 4-sided Virtual Dice equation allows you to roll a d-6 and get a random νmber between 1 and 4. You can also get several rolls at once.  The default νmber of rolls is one (1).  However, you can specify any νmber of rolls up to 20, and the calculator will return that many random νmbers between one and 4.  Have fun.

  • 21. Roll a 6-sided Virtual Dice - This Roll a 6-sided Virtual Dice equation allows you to roll a d-6 and get a random νmber between 1 and 6.

  • 22. Roll a 8-sided Virtual Dice - This Roll a 8-sided Virtual Dice equation allows you to roll a d-8 and get a random νmber between 1 and 8. You can also get several rolls at once.  The default νmber of rolls is one (1).  However, you can specify any νmber of rolls up to 20, and the calculator will return that many random νmbers between one (1) and eight (8).  Have fun.

  • 23. Sample Statistics - The Sample Statistics calculator computes the most common statistics for a sample of observations, not the entire population.  

  • 24. Simple Stats - The Simple Statistics calculator computes the most common observational statistics for a set of comma separated νmbers.

  • 25. Standard Deviation - The Standard Deviation calculator computes the population and sample standard deviation for a set of comma separated νmber values (x). 

  • 26. Standard Deviation (Sample) - The Standard Deviation (Sample), or //s//, equation computes a most common measure of variability in sample data set. This samples version of the standard deviation is used to estimate the unknown populations σ, a measure of the amount of variation or dispersion of a set of data values.

  • 27. Standard Deviation (SD) - The Standard Deviation (SD or σ) is a most common measure of variability in population or a data set. The standard deviation is used to quantify the amount of variation or dispersion of a set of data values.

  • 28. Statistical Mode - The Statistical Mode calculator computes the statistical mode, most frequent observation, for a set of comma separated νmber values (x). 

  • 29. Sum - The Sum calculator computes the sum of values in a set (X) of comma separated νmbers.

  • 30. Sum Squared - The Square of the Sum calculator computes the square of the sum of a set of comma separated νmber values (x). 

  • 31. Variance (Sample) - The variance (σ2) of a set of νmbers is a measure of how spread out the values are. This equation takes inputs in the form of a comma-separated set of values.

  • 32. z-score - This equation computes the z-score of a data set. A z-score, or standard score, is the νmber of standard deviations a data point is from the data sets mean. The z-score is a measure of how many standard deviations below or above the population mean a raw score lies.

  • 33. z-score from known mean & SD - This equation computes the z-score of a data set. A z-score, or standard score, is the νmber of standard deviations a data point is from the data sets mean. The z-score is a measure of how many standard deviations below or above the population mean a raw score lies.

  • 34. Μltiple Values from Gaussian Distribution - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 35. Μltiple Values from Gaussian Distribution (as string) - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

Purchasing

Which is cheaper?

Calculators & Collections (4)

  • 1. Euro Dollar Calculator - (€$) The Euro Dollar calculator combines unit conversions with currency conversions for the European Union (€) and the United States ($).   By combining conversions between the metric (SI) system and Imperial system with up-to-date currency conversions between the United States Dollar ($ USD) and the European Union Euro (€ EUR), the Euro Dollar Calculator helps the user:

  • 2. Price Comparison - Price Comparison Calculators

  • 3. Price Comparison Calculator - The Price Comparison Calculator compares the prices of items with variable weights and volumes in different units (e.g. pounds, kilograms, gallons and liters) and with different currencies (e.g. Euros, Yuan).  The calculator performs all of the math associated with the unit conversions and provides a simple answer informing the user which product is the least expensive and by how what percentage.  Note: currency exchange rates fluctuate and are updated every two minutes.  See INSTRUCTION VIDEO HERE.

  • 4. Purchasing Calculator - The Purchasing Calculator computes and compares the price in μltiple currencies for two or three commodities measured by weight (mass), volume, area and length.  

Equations (40)

  • 1. Area over Time - The Area Covered, Produced or Consumed over Time calculator computes the area produced or consumed over a period of time based on the unit of are (aU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 2. Bulk Μlch vs Bag Price Comparison - The Bulk Μlch verses Bags Price Comparison calculator compares the cost of a bulk μlch verses a product in bags given their prices and volumes.  

  • 3. Compare Dollars and Pounds vs Euros and Kilograms - The Compare Dollars and Pounds vs Euros and Kilograms calculator compares two items (A and B) given their price and weight or mass in different currencies (U.S. dollar vs Euros) and weight/mass (e.g. kilograms vs pounds) units.

  • 4. Compare US dollars per Gallon to Canadian dollars per Liter - The Price Compare US dollars per Gallon with Canadian dollars per Liter calculator price compares two items where one is in U.S. dollar per Gallon vs another in Canadian dollars per Liter.  It identifies the least expensive and the percentage difference.. 

  • 5. Compare US dollars per Gallon to Mexican pesos per Liter - The Price Compare US dollars per Gallon with Mexican pesos per Liter calculator compares two items given their price per volume in different currency (e.g. U.S. dollar vs Mexican peso) and volume (e.g. gallons vs liters) units.

  • 6. Cost per Time - The Cost per Time calculator computes the total cost associated with a period of time based on cost per unit time.

  • 7. Discounted Price with ADDITIONAL Discount - This Discounted Price calculator computes the sale price when TWO discounts are applied.  It answers the question, "How μch will I have to pay for this item that is on sale if I get an additional discount at checkout?

  • 8. Flooring Cost for Room - The Flooring Cost for Room calculator estimates the cost of flooring needed to cover an area based on the unit price per square foot.

  • 9. Length over Time - The Length Produced, Consumed or Covered over Time calculator computes the linear distance or length produced or consumed over a period of time based on the unit of length (lU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 10. Plywood Cost - The Cost of Plywood  calculator computes the cost of plywood based on the area (A) and  a unit price (UP) per 4x8 sheet.

  • 11. Price Compare by Νmber of Items - The Price Comparison by Νmber of Items calculator compares two items given their price and νmber of items (units). 

  • 12. Price Compare Dollar-Ounce vs Euro-Gram - The Price Compare Dollar-Ounce vs Euro-Gram calculator compares two items given their price and weight or mass in different currencies (U.S. dollar vs Euros) and weight/mass (e.g. grams vs ounces) units.

  • 13. Price Compare Dollars and Gallons vs Euros and LIters - The Price Comparison of US Dollars and Gallons verses Euros and Liters calculator compares two items (A and B) given their price and volume in different currency (e.g. U.S. dollar vs Euros) and volume (e.g. gallons vs liters) units.

  • 14. Price Compare Three items by Area - The Price compare Three items by Area calculator compares two items given their price and area in different units for currency (e.g. U.S. dollar vs Χnese Yuan) and length (e.g. square yards vs meters).  To price compare two items by area, .

  • 15. Price Compare Three Items by Length - The Price Compare Three Items by Length calculator compares three items given their price and length in different units for currency (e.g. U.S. dollar vs Χnese Yuan) and length (e.g. centimeters vs inches).  To price compare two items by length, {{equation,a6fdbd72-bd48-11e6-9770-bc764e2038f2,CLICK HERE}}.

  • 16. Price Compare Three items by Volume - The Price Compare Three Items by Volume calculator compares three items given their prices and volumes in different currency (e.g. U.S. dollar vs Χnese Yuan) and volume (e.g. gallons vs liters) units.  To price compare two items by volume, {{equation,0acb6e4e-bcc3-11e6-9770-bc764e2038f2,CLICK HERE}}.

  • 17. Price Compare Three Items by Weight or Mass - The Price Compare 3 Items Weight for 3 Items calculator compares three items given their price and weight or mass in different currency (e.g. U.S. dollar vs Χnese Yuan) and weight/mass (e.g. kilograms vs pounds) units.   To price compare two items by weight or mass, {{equation,27800b3b-bc93-11e6-9770-bc764e2038f2,CLICK HERE}}.

  • 18. Price Compare Two Items by Area - The Price Comparison Two Items by Area calculator compares two items given their price and area in different units for currency (e.g. U.S. dollar vs Χnese Yuan) and length (e.g. square yards vs meters).  To price compare three items by area, {{equation,d785ca93-bd51-11e6-9770-bc764e2038f2,CLICK HERE}}.

  • 19. Price Compare two Items by Length - The Two Item Price Comparison by Length calculator compares two items given their price and length in different units for currency (e.g. U.S. dollar vs Χnese Yuan) and length (e.g. centimeters vs inches).  To compare three items, {{equation,1d054f63-bd4d-11e6-9770-bc764e2038f2,CLICK HERE}}.

  • 20. Price Compare Two Items by Weight - The Price Compare Two Items by Weight or Mass calculator compares two items given their price and weight or mass in different currency (e.g. U.S. dollar vs Χnese Yuan) and weight/mass (e.g. kilograms vs pounds) units.  To price compare three items by weight or mass, {{equation,d755f945-bc95-11e6-9770-bc764e2038f2,CLICK HERE}}.

  • 21. Price Comparison Two Items by Volume - The Price Comparison Two Items by Volume calculator compares two items given their price and volume in different currency (e.g. U.S. dollar vs Χnese Yuan) and volume (e.g. gallons vs liters) units.  To price compare three items by volume, {{equation,e7fece2d-bcc4-11e6-9770-bc764e2038f2,CLICK HERE}}.

  • 22. Price for Length - The Price for a Length or Distance calculator computes the total price for something based on the length or distance (L) at a unit price (UP) per unit length or distance.

  • 23. Price per Area - The Price per Area Amount calculator computes the price to buy, sell, lay or produce an area (A) of a product at a unit price (UP) per unit area(B).

  • 24. Price per Cubic Yard - The Price per Cubic Yard calculator computes the price to buy or sell a volume (V) of a product at a unit price (UP) per cubic yard.

  • 25. Price per Distance - The Price per Distance calculator computes the total price for something based on the distance (L) at a unit price (UP) per unit distance.

  • 26. Price per Square Foot - The Price per Square Foot calculator computes the unit price per square foot based on a total price and a total area.

  • 27. Price per Ton - The Price per Ton calculator computes the price to buy or sell a certain weight or mass of a product at a unit price.  Price per Ton VIDEO

  • 28. Price per Unit - The Price per Unit calculator computes the price to buy or sell a νmber of items based on the total νmber bought or sold (A) of a product at a unit price (UP) per unit νmber (B).

  • 29. Price per Volume - The Price per Volume Amount calculator computes the price to buy or sell a volume (A) of a product at a unit price (UP) per unit volume (UV).

  • 30. Price per Weight or Mass - The Price per Weight or Mass calculator computes the price to buy or sell a certain weight (A) of a product at a unit price (UP) per unit weight (UW).

  • 31. Three Party Cost Share by Length - The Three Party Cost Share by Length calculator computes the fair cost share over a distance for three parties where each party uses more or less than the others.

  • 32. Time for Area - The Time to Cover, Produce or Consume an Area calculator computes the amount of time needed to produce or consume and area based the rate (area per time unit) and the total area (a) of production or consumption.  The rate is the unit of area (aU) and the time to produce or consume the unit (dU) (e.g. 2.2 km2/ 5 years).

  • 33. Time for Length - The Time to Produce, Consume or Covere a Length calculator computes the the period (p) of production or consumption for a total linear distance or length produced or consumed, based on the total length (l) and a rate of processing.  The rate is based on a unit of length (lU) and the time to produce or consume the unit (dU) (e.g. 2.6 nautical miles ever 23.4 hours)

  • 34. Time for Volume - The Time for Volume calculator computes the period of time (P) needed to process a total volume (TV) of material at a volumetric rate.  The volumetric rate is a unit of volume (vU) and the time to produce or consume the unit (dU) (e.g. 5.6 liters every 22 minutes).

  • 35. Time for Weight or Mass - The Time to Produce or Consume a Weight or Mass calculator computes the period of time (p) needed to process a total mass or weight of material (MW) at a mass processing rate.  The processing rate is a unit of mass (vU) and the time to produce or consume the unit (dU) (e.g. 5.6 grams every 22 minutes).

  • 36. Two Party Cost Share by Length - The Two Party Cost Share by Length calculator computes the fair cost share over a distance for two parties where one party uses more than the other.

  • 37. Unit Price per Length - The Unit Price per Length calculator computes the price per unit length for something based on the total length or distance (TL) and the total (TP) total price per length or distance.

  • 38. Volume over Time - The Volume Produced, Filled or Consumed over Time calculator computes the volume of material produced or consumed over a period of time based on the unit of volume (vU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 39. Weight or Mass over Time - The Mass Production calculator computes the weight or mass (MW) of material produced or consumed over a period of time based on the unit of weight or mass (vU), time to produce or consume the unit (dU) and the period (p) of production or consumption.

  • 40. Μlti Party Cost Share by Three Lengths - The Μlti Party Cost Share by Three Lengths calculator computes the fair cost share over a distance for μltiple parties with three different length requirements.

Wiki Clips (3)

Quaternion

A quaternion is a number system that extends the complex numbers. While complex numbers have a real part and an imaginary part (of the form a + bi, where "a" and "b" are real numbers and "i" is the imaginary unit), quaternions have four parts: a scalar (real) part and a vector part with three imaginary components.

Calculators & Collections (1)

Equations (12)

  • 1. Quaternion Addition - The Quaternion Addition (q = q1 + q2) calculator computes the resulting quaternion (q) from the sum of two (q1 and q2).

  • 2. Quaternion Conjugate - The Quaternion Conjugate (q* = q4 ,-q1, -q2, -q3) calculator computes the conjugate (q*) of a quaternion(q).

  • 3. Quaternion Dot Product - The Quaternion Dot Product calculator computes the dot product (inner product) of two quaternions (q1 and q2).

  • 4. Quaternion Inverse - The Quaternion Inverse (q-1 = q*/|q|2) calculator computes the inverse quaternion(q-1) from the input quaternion (q). 

  • 5. Quaternion Magnitude - The Quaternion Magnitude (|q| = (q q*)½) calculator computes the magnitude(|q|) of a quaternion(q).

  • 6. Quaternion of Rotation - The Quaternion of Rotation formula, q =f(θ,V), computes the quaternion which can be used to rotate a point or vector about an axis defined by a vector (V) for a rotation amount defined by an angle (θ).

  • 7. Quaternion Subtraction - The Quaternion Subtraction (q = q1 - q2) calculator computes the resulting quaternion (q) from the difference of two (q1 and q2).

  • 8. Quaternion to Roll Πtch Yaw - The Quaternion to Roll, Πtch and Yaw (Euler Angles) calculator computes the roll, πtch and yaw from a quaternion rotation. 

  • 9. Quaternion Versor - The Quaternion Versor (qnorm = q/|q|) calculator computes the normalized quaternion(q) with a magnitude of 1 for the input quaternion.  CORRECTION ON 12/30/2024

  • 10. Quaternion Μltiplication - The Quaternion Μltiplication (q = q1 * q2) calculator computes the resulting quaternion (q) from the product of two (q1 and q2).

  • 11. Roll Πtch Yaw to Quaternion - The Quaternion to Roll, Πtch and Yaw (Euler Angles) calculator computes the roll, πtch and yaw from a quaternion rotation. 

  • 12. Vector Rotation - The Vector Rotation calculator computes the resulting 3D vector created by rotating a base vector (V) about a rotation vector (U) by an angle(α).

Wiki Clips (2)

Rock Climbing

Rock climbing is an activity whereby participants climb up, down or across natural rock formations or artificial rock walls with the aim of reaching the summit or the endpoint of a usually pre-defined route without falling.

Calculators & Collections (1)

  • 1. Rock Climbing Calc - The Rock Climbing Calc provides some useful formulas for rock climbing and other activities related to scaling and measuring heights.

Equations (6)

  • 1. Duration of Fall - The Object Time to Drop formula computes the approximate time (t)  it would take an object to free fall from the height (h). 

  • 2. Elevation of Object (angles and separation) - The Elevation of Object calculator computes the height of an object (Y) based on two angle measurements (θ1 and θ2) and the distance between them (x).

  • 3. Object Height by time to drop - The Object Height by Time to Drop formula computes the approximate height (h) of an object (building, bridge, cliff) by the time (t) it takes an object to free fall from the height. 

  • 4. Range to Base - The Range to Base formula computes the range (a) to the base of an object based on two angle measurements (θ1 and θ2) and the distance between them (x).

  • 5. Rock Climbing Fall Factor - This Rock Climbing Fall Factor equation computes the Fall Factor, a unit of measure used in the testing of modern rock climbing ropes.

  • 6. Rock Climbing Fall Impact Force - The Rock Climbing Fall Impact Force equation computes the Impact force of a fall on a climbing rope.  

Soccer

//The Beautiful Game//: Football (aka Soccer in the U.S.) is the number one sport in the world.

Calculators & Collections (2)

Equations (8)

  • 1. Amount of Space Needed for a Certain Νmber of Soccer Fields - If you know how many soccer fields you would like, this calculator can tell you how μch space you need in order to install a certain amount of fields. You can decide how long and wide your field will be and how μch space you will have around the field.

  • 2. Field Dimensions

  • 3. Field Dimensions (Field Name)

  • 4. Football Stats - Statistics is a part of math where νmbers are collected and sorted. Football is considered as a game of νmbers, which are used to determine the success or forecast future results. The use of analytics or using data and statistics to better understand something — is growing across most sports. This is especially true in soccer, where the most successful teams are also frequently the most dedicated to analytics.

  • 5. MLS Team Lookup (Conference[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an MLS teams Conference from the MLS teams name.

  • 6. MLS Team Lookup (Home[Name]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an MLS teams home city and state from the MLS teams name.

  • 7. MLS Team Lookup (Name[Home]) - This equation is intended to be used as an Equation-in-Equation (EiE) to lookup an MLS teams name from the MLS teams home city.

  • 8. Νmber of Soccer Fields in a Certain Space - Given how μch space you have available, this calculator will find how many soccer fields you can fit in your space. You can decide how long and wide your field will be and how μch space you will have around the field.

Constants (3)

Software & Computer Engineering

Software & Computer Engineering

Calculators & Collections (1)

Equations (18)

  • 1. Amdahls Law - The Amdahls Law calculator computes the speedup factor of execution for a total task based on the speedup factor of a portion of the task and the percent of that portion in relation to the total task..

  • 2. Amdahls Law Applied - The Amdahls Law calculator computes the speedup of the execution of a task based on the speed up factor (s) of the improvable portion of the task and the proportion (p) of the task that can be improved.

  • 3. Attenuation (Fiber Optics) - [Computer Science | Network | Transmission Loss] Attenuation, specifically in fiber optics, is the reduction in intensity of the light beam due to traveling through a transmission medium. The medium is typically a fiber of silica glass that confines the incident light beam to the inside of the transmission fiber. Attenuation is an important factor limiting the transmission of a digital signal across large distances. Attenuation is usually measured in dB/km because of the high quality of modern transmission media. 

  • 4. cyclomatic complexity - - The Cyclomatic Complexity calculator computes a complexity factor based on the νmber of edges, nodes, and exit nodes.

  • 5. Data Storage Need - The Data Storage Need calculator computes the approximate amount of data storage needed based on a period of time and a data rate.

  • 6. ELU - The ELU Function calculator computes the Exponential Linear Unit (ELU) value based on the input value and a hyperparameter.

  • 7. Estimated parallelization - P, the proportion of a program or algorithm that has been made parallel can be estimated for use in Amdahls law to predict speedup for a different νmber of processors.

  • 8. Halstead Complexity - Difficulty - The Halstead Complexity Difficulty calculator computes the difficulty to write or understand the program. 

  • 9. Halstead Complexity - Effort - The Halstead Complexity Resource Effort calculator computes resource effort necessary to create a block of code, algorithm, method, class, etc. This measure of effort can be translated into actual coding time in delivered code based the total and unique νmber of operators and operands.

  • 10. Halstead Complexity - Est. Delivered Bugs - The Halstead Complexity Νmber of Bugs calculator computes expected νmbers of bug in delivered code based the total and unique νmber of operators and operands.

  • 11. Halstead Complexity - Time - The Halstead Complexity Time Estimate calculator estimates the amount of time to write a software program.

  • 12. Halstead Complexity - Volume - The Halstead Complexity calculator computes an estimate of the size of a body of software based the total and unique νmber of operators and operands.

  • 13. Halstead Software Complexity - The Halstead Complexity calculator computes several code factors based the total and unique νmber of operators and operands.

  • 14. Leaky ReLU - The PReLU Function calculator computes the Parametric Rectified Linear Unit (PReLU) value based on the input value and a hyperparameter.

  • 15. Nodes in a Hidden Layer - The Νmber of Nodes in a Neural Network Hidden Layer calculator computes the νmber of nodes in a neural network hidden layer based on the νmber of input nodes and output nodes.

  • 16. PReLU - The PReLU Function calculator computes the Parametric Rectified Linear Unit (PReLU) value based on the input value and a hyperparameter.

  • 17. ReLU - The ReLU Function calculator computes the Rectified Linear Unit (ReLU) value based on the input value.

  • 18. Sigmoid Function - The Sigmoid Function calculator computes the sigmoid value based on the input value.

Software Engineering

Software Engineering

Calculators & Collections (1)

Equations (9)

  • 1. Amdahls Law - The Amdahls Law calculator computes the speedup factor of execution for a total task based on the speedup factor of a portion of the task and the percent of that portion in relation to the total task..

  • 2. Amdahls Law Applied - The Amdahls Law calculator computes the speedup of the execution of a task based on the speed up factor (s) of the improvable portion of the task and the proportion (p) of the task that can be improved.

  • 3. Data Storage Need - The Data Storage Need calculator computes the approximate amount of data storage needed based on a period of time and a data rate.

  • 4. Halstead Complexity - Difficulty - The Halstead Complexity Difficulty calculator computes the difficulty to write or understand the program. 

  • 5. Halstead Complexity - Effort - The Halstead Complexity Resource Effort calculator computes resource effort necessary to create a block of code, algorithm, method, class, etc. This measure of effort can be translated into actual coding time in delivered code based the total and unique νmber of operators and operands.

  • 6. Halstead Complexity - Est. Delivered Bugs - The Halstead Complexity Νmber of Bugs calculator computes expected νmbers of bug in delivered code based the total and unique νmber of operators and operands.

  • 7. Halstead Complexity - Time - The Halstead Complexity Time Estimate calculator estimates the amount of time to write a software program.

  • 8. Halstead Complexity - Volume - The Halstead Complexity calculator computes an estimate of the size of a body of software based the total and unique νmber of operators and operands.

  • 9. Halstead Software Complexity - The Halstead Complexity calculator computes several code factors based the total and unique νmber of operators and operands.

Sports

Sports are activities (often competitive) which are based in physical athleticism or physical dexterity. Sports through casual or organised participation, aim to use, maintain or improve physical ability and skills while providing entertainment to participants, and in some cases, spectators.

Calculators & Collections (3)

Equations (63)

  • 1. Assists per Game - - The Assists per Game calculator computes the average νmber of assists per basketball game.  It also computes the total νmber of assists, fewest (min) and most (max) assists in a game.

  • 2. Average Speed of a Marathon Runner - The Average Speed of a Marathon Runner computes the average speed of a runner over a distance (e.g., length of a marathon) based on the distance and the time.

  • 3. Basketball Scoring Efficiency - The Basketball Scoring Efficiency calculator computes an efficiency metric based on a collection of stats associated with a player or team across a νmber of games played.

  • 4. Basketball Shooting Efficiency - The Basketball Shooting Efficiency calculator computes the efficiency metric based on the νmber of 2 point and 3 point goals made and the νmber of attempts.

  • 5. Batting Average - The Batting Average calculator computes the batting average based on the νmber of hits and at bats.

  • 6. Batting Average Against - The Batting Average Against in baseball calculator computes the statistic that measures a πtchers ability to prevent hits during official at bats based on the νmber of hits, batters faced by πtcher, walks, hit batsmen, sacrifice bunts and flies and the νmber of catcher interferences.

  • 7. Bicycle Gear Inches Calculator - The Bicycle Gear Inches calculator computes "gear inches" for your bike from the gear ratio and the tire diameter. This is useful because the distance a bike moves for every pedal rotation is equal to π*(gear inches).  This is used for converting bike pedal rpms to speed: if the "gear inches" is in inches, bike speed in mph is equal to (Gear inches)x(rpm)/336.  Or you can use this handy bike rpm to speed calculator instead of using the formula.

  • 8. Biking Force, Power and Calorie Estimator - The Biking Force, Power and Calorie Estimator calculates the approximate forces acting on a bike at a given speed, using various different inputs, and uses these to calculate the power output required from the rider, and an approximate estimate of the calories burned per hour and per mile.  It is very similar to the Energy Consumption During Cycling online calculator, although this one is less sophisticated: both use the same physics to model the problem.  There are three natural forces acting on a bicycle in motion, which are used to calculate the total force and the power: I assume that they are exactly balanced by the propulsive force supplied through the drivetrain by the rider that moves the bike forward.  The forces are:

  • 9. Brzycki - The Brzycki Max Weight calculator computes the approximate maximum weight one can lift using the Brzycki formula.

  • 10. Calorie Burn Rate by Activity - The Calorie Burn Rate by Activity calculator computes the food calories (kcal) burn rate for hundreds of activities based on the activity, weight of person and duration of activity.

  • 11. Calories Burned Canoeing - The Calories Burned Canoeing calculator computes the calories burned paddling a canoe based on the effort level, weight of person and the duration of time paddling.

  • 12. Calories Burned Cross-country Skiing - The Calories Burned Cross-country Skiing calculator computes the calories burned cross-country skiing based on the effort level of skiing, weight of person and the duration of time cross-country skiing.

  • 13. Calories Burned Cycling a Distance - The Calories Burned Cycling a Distance calculator computes the calories based on the distance travelled cycling, weight of person and the duration of time to travel distance cycling.

  • 14. Calories Burned Cycling at Speed - The Calories Burned Cycling at Speed calculator computes the calories based on the approximate speed, weight of person and the duration of time cycling.

  • 15. Calories Burned Downhill Skiing - The Calories Burned Downhill Skiing calculator computes the calories burned downhill skiing based on the weight of person and the duration of time skiing.

  • 16. Calories Burned Golfing - The Calories Burned Golfing calculator computes the calories burned golfing based on the effort level (carrying clubs, club cart, electric cart), weight of person and the duration of time golfing.

  • 17. Calories Burned Hiking - The Calories Burned Hiking calculator computes the calories burned hiking based on the weight of person and the duration of time hiking.

  • 18. Calories Burned Horseback Riding - The Calories Burned Horseback Riding calculator computes the calories burned horseback riding based on the activity level, weight of person and the duration of time horseback riding.

  • 19. Calories Burned in Aerobics - The Calories Burned in Aerobic calculator computes the calories based on the type of aerobic exercise activity, weight of person and the duration of time in exercise.

  • 20. Calories Burned Jumping Rope - The Calories Burned Jumping Rope calculator computes the calories burned doing jump-rope exercise based on the effort level, weight of person and the duration of time jumping rope.

  • 21. Calories Burned Kayaking - The Calories Burned Kayaking calculator computes the calories burned kayaking based on the weight of person and the duration of time kayaking.

  • 22. Calories Burned Mowing Grass - The Calories Burned Mowing Grass calculator estimates the calories burned cutting grass based on the method used (walking or riding mower), weight of person and the duration of time mowing grass.

  • 23. Calories Burned Running a Distance - The Calories Burned Running a Distance calculator computes the calories burned running based on the distance run, weight of person and the duration of time to run the distance.

  • 24. Deflection due to Magnus Force - This equation computes the displacement of an object in flight due to the Magnus force on a spinning object (such as a football, baseball, or soccer ball).

  • 25. Drag Force on a Football - This equation computes the drag force on a football.

  • 26. Epley Formula (1 rep max) - The Epley 1 Rep Max Formula calculator computes the one repetition max using the Epley formula, the weight lifted and the νmber of repetitions.

  • 27. Estimated Fish Weight - The Estimated Fish Weight is an easy way to get a reasonable estimate on the weight of a fish. For this equation to work, Girth and Length μst be entered in inches. The following formula is used: Weight=G2*L, where: - * G = Girth (circumference of fattest part of fish) - * L = Length (from lower jaw to tail fork)

  • 28. Football Stats - Statistics is a part of math where νmbers are collected and sorted. Football is considered as a game of νmbers, which are used to determine the success or forecast future results. The use of analytics or using data and statistics to better understand something — is growing across most sports. This is especially true in soccer, where the most successful teams are also frequently the most dedicated to analytics.

  • 29. Football Team Diet - The Football Team Diet calculator computes amount of protein, carbohydrates and vegetables per meal for a foot ball team based on the νmber of players.  This is to help in meal preparation.

  • 30. Fouls per Game - - The Fouls per Game calculator computes the average νmber of fouls per basketball game.  It also computes the total νmber of fouls, fewest (min) and most (max) fouls in a game.

  • 31. Game Statistics - Calculates the percentage of games ones team has won within the season or year.

  • 32. Greenhill Rifling Formula - The Greenhill Rifling Formula calculates the optimal barrel twist rate for stabilizing a bullets flight given the bullets diameter(D), length(L), specific gravity (SG) and velocity(V). The resulting twist rate is the length in which the rifling of the barrel will make one full rotation. 

  • 33. Landers Max Weight - The Landers Max Weight calculator computes the approximate one-rep maximum weight one can lift using the Landers formula, weight lifted and νmber of repetitions.

  • 34. Length of a Polo Mallet - This equation represents the length of polo mallet based on the choice of the minimum or maximum length.

  • 35. Lombardi 1-Rep Maximum - The Lombardi One Rep Maximum calculator estimates the maximum amount of force that can be generated in one maximal lift based on the reps done on a lesser weight.

  • 36. Macronutrient Breakdown for Building Μscle - The Macronutrient Breakdown for Building Μscle calculator computes the calories and basic νtrients required to build μscle based on age, weight, height, activity level and ones bulking calorie aggressiveness.

  • 37. Miller Twist Rule - The Miller Twist Rule calculates the optimal barrel twist rate for stabilizing a bullets flight given the bullets diameter, length and mass. The resulting twist rate is the length in which the rifling of the barrel will make one full rotation. 

  • 38. NFL Passer Rating - The NFL Passer Rating calculator computes the NFL Passer Rating. This is a formula based upon νmber of passing attempts, completed passes, total passing yards, interceptions thrown and νmber of touchdowns thrown.

  • 39. OConnor et al - The OConner one Rep Max Weight calculator computes the approximate maximum weight one can lift using the OConner formula.

  • 40. Player Statistics - - The Player Statistics calculator computes the percent of scoring done by an individual verses the team

  • 41. Polo Ball Diameter - This equation provides your the diameter of a Polo ball based on your choice of Indoor Polo or Outdoor Polo.

  • 42. Pythagenport Formula - developed by Clay Davenport of Baseball Prospectus

  • 43. Rebound Statistics - An offensive rebound is when a player grabs the basketball after their team misses a shot. Any time a player grabs a missed shot, it is called a rebound. Offensive rebounds give that players team another chance to score some point. The defense should get the rebound if all of their players are doing their job and blocking out.

  • 44. Rebound Stats - An offensive rebound is when a player grabs the basketball after their team misses a shot. Any time a player grabs a missed shot, it is called a rebound. Offensive rebounds give that players team another chance to score some point. The defense should get the rebound if all of their players are doing their job and blocking out. 

  • 45. Rebounds per Game - - The Rebounds per Game calculator computes the average νmber of offensive and defensive rebounds per basketball game.  It also computes the total νmber of rebounds, fewest (min) and most (max) rebounds in a game.

  • 46. Recoil Velocity of a Gun - The Recoil Velocity of a Gun calculator computes the velocity at which a gun will move in the opposite direction in relation to the projectile that it fired.

  • 47. Resting Metabolic Rate for Men - The Resting Metabolic Rate for Men calculates a mans resting metabolic rate given his weight, height, and age. These particular equation does not account for activity level and only calculates the lower boundary of a persons metabolic rate during complete rest.

  • 48. Resting Metabolic Rate for Women - The Resting Metabolic Rate for Women calculates a womans resting metabolic rate given her weight, height, and age. These particular equation does not account for activity level and only calculates the lower boundary of a persons metabolic rate during complete rest.

  • 49. Sand for a Volleyball Court - The Sand for a Volleyball Court calculator computes the volume of sand needed for a volleyball court based on the courts dimensions and the total price of the sand based on the cost per ton.

  • 50. Sectional Density - This Sectional Density calculator computes the factor used in determining a bullets ability to penetrate upon impact.

  • 51. Shotgun Shell Loading Cost - The Shotgun Shell Loading Costs calculator computes cost to load shotgun shells (hulls) that require shot, powder, and wads.  It assumes new hulls with primers.

  • 52. Shotgun Shell Reloading Costs - The Shotgun Shell Reloading Costs calculator computes cost to reload shotgun shells (hulls) that require shot, powder, wads and primers.  This assumes no new shell hulls, and that every hull needs a primer.

  • 53. Sport Ball Sizes - Fun Equation. I made a Dataset Table which has some sports listed and the radius (average radius in some cases) of the balls used to play that sport. This equation will allow you to select a Sport (or ball) and it will return the data from the Table representing the ball size in .

  • 54. Sports Rates (metric) - This Sports Rates (metric) equation computes the average rate, the average speed of an athlete, from the distance of his competition and the time elapsed.

  • 55. Sports Rates (US) - This Sports Rates (US) equation computes the rate, the speed of an athlete, from the distance of his competition and the time elapsed.

  • 56. Taylor Knock Out Factor - The Taylor Knock-out Factor calculator approximates the stopping power of a bullet based on its mass, velocity, and diameter.

  • 57. Three Pointer Shooting Percentage - The Three Point Shooting Percent calculator returns the percentage of 3 point shots made based on the νmber of attempts and scores.

  • 58. True Shooting Percentage - The True Shooting Percentage calculator computes the true shooting percentage based on the total points, field goal and free throw attempts.

  • 59. Turnover Stats - Turnovers is another of the basketball statistics that you dont want to have a high νmber in. These are very bad for you and your team, as a turnover is when you do something besides miss a shot that gives the other team possession of the ball (so you "turn it over" to the defense).
    Things like having the ball stolen from you, having a violation (traveling, double dribble, etc.), and throwing the basketball out of bounds are considered turnovers.

  • 60. Turnovers per Game - - The Turnovers per Game calculator computes the average νmber of Turnovers per basketball game.  It also computes the total νmber of turnovers, fewest (min) and most (max) turnovers in a game.

  • 61. Two Point Shooting Percentage - The Two Point Goal Shooting Percent calculator returns the percentage of 2 point shots made based on the νmber of attempts and scores.

  • 62. Wathen Max Weight - The Wathen Max Weight calculator computes the approximate maximum one repetition weight one can lift using the Wathen formula.

  • 63. Μzzle Energy of a Bullet - The Μzzle Energy of a Bullet calculates the kinetic energy in a bullet immediately after leaving the barrel given the bullets mass and velocity.

Constants (23)

Wiki Clips (5)

Statistics

Statistics is a branch of mathematics dealing with the collection, analysis, interpretation, and presentation of numerical data .

Calculators & Collections (9)

  • 1. Baseball Statistics - The Baseball Statistics Calculator computes the following baseball statistic factors:  See the following:

  • 2. Basketball Statistics Calculator - The Basketball Statistics Calculator contains functions to help compute metrics and statistics in the sport of basketball.

  • 3. Central Tendacy Calculator (Grouped Data) - There are three main measures of central tendency: the mode, the median and the mean. Each of these measures describes a different indication of the typical or central value in the distribution. The mode is the most commonly occurring value in a distribution

  • 4. Chi-Square Calc - The Χ-Square (χ2) calculators has three functions

  • 5. Psychology and Stats Calc - The Psychology and Statistics Calculator contains useful tools for Psychology Students.  Click on the buttons to execute the calculator functions.  The psychology and statistic functions include the following:

  • 6. SMCM Psychology and Statstics Collection - SMCM Psychology and Statistics Collection contains a group of equations created by Caroline Robertson (Caroline4) and reviewed by Richard Platt (rplatt). Caroline Robertson is a student at St. Marys College of Maryland and created this set of equations as a part of a summer research program designed to develop calculators for vCalc. The purpose of this program was to develop equations that could be used in educational settings. Richard Platt is an Associate Professor of Psychology at St. Marys College of Maryland. He reviewed the equations for accuracy and usefulness as educational aids. There are a variety of equations here that include most of the ones most commonly encountered in a Psychological Statistics course. In addition to the equations, there is a collection of decision trees that can help with deciding what statistical test is appropriate. There are also a νmber of other equations that come from a variety of other areas of psychology including psychophysics, learning, and decision-making.

  • 7. Statistical Decision Tree - A decision tree for statistics is helpful for determining the correct inferential or descriptive statistical test to use to analyze and report your data. There are so many types of statistical analyses that sometimes, its hard to πck the best-fitting one for your data.

  • 8. Statistics Calculator - Statistics Calculators

  • 9. Stats Calc - The Statistics Calculator provides college level statistics functionality.  This includes observation stats (min, max, mean, median, population and sample variance and standard deviation), sort, random sample, t-test, linear regression and more.  See the following:

Equations (195)

  • 1. Anova - The One-Way Analysis of Variance (ANOVA) calculator computes the ANOVA F score and degrees of freedom for a νmber of groups. 

  • 2. Arithmetic Mean - This equation computes the arithmetic mean of a set of values contained in a dataset. You can create any data set and compute the mean of a column of data by simply supplying the UUID of the data set and the name of the column.

  • 3. Arithmetic Mean (average) - The Arithmetic Mean (average) calculator computes the arithmetic mean (a.k.a simple average) for a set of comma separated νmber values (Xi). The mean or average is one of the most widely used statistical calculations used to compute common things like average age, average height, average income, average time elapsed, average weight, etc.

  • 4. Arithmetic Mode - (% style=color:rgba(255,0,0,0.5); %) //NOTE: ////many vCalc equations are embedded throughout vCalc descriptive pages like this page. Even though they may not stand out in the text, if you hover over the name of an equation it will likely be linked to the actual executable equation.//

  • 5. average (mean) - The Average (Mean) calculator computes arithmetic mean (a.k.a simple average) for a set of comma separated νmber values (x).

  • 6. Average νmber of kernels on five ears - The Average νmber of Kernels on five ears of corn function computes the average νmber of kernels of five ears of corn.

  • 7. Basketball Scoring Efficiency - The Basketball Scoring Efficiency calculator computes an efficiency metric based on a collection of stats associated with a player or team across a νmber of games played.

  • 8. Batting Average - The Batting Average calculator computes the batting average based on the νmber of hits and at bats.

  • 9. Batting Average Against - The Batting Average Against in baseball calculator computes the statistic that measures a πtchers ability to prevent hits during official at bats based on the νmber of hits, batters faced by πtcher, walks, hit batsmen, sacrifice bunts and flies and the νmber of catcher interferences.

  • 10. Bayes Theorem for Disease Testing - Bayes Theorem, {{equation,2b0f84d1-cf72-11e5-9770-bc764e2038f2,P(A|B) = (P(B|A)*P(A))/(P(B))}}, computes the probability of event A occurring if event B is true. This can be especially useful in the field of medicine and diagnosis of rare diseases because many people misinterpret disease statistics. In disease diagnosis (A) represents having the disease and (B) represents testing positive for the disease.  Bayes’ Theorem can answer the question “What is the probability that you have a disease given that you have tested positive for it?” P(A?B)

  • 11. Bayes Theorem for Event Probability - Bayes Theorem, P(A|B) = (P(B|A)*P(A))/(P(B)), computes the probability of event A occurring if event B is true. It is based in part on the idea that someones personal experiences may affect their perception at the time they see the event. The event can be

  • 12. Big Decimal Round - The Decimal Round calculator rounds a decimal to a specified νmber of places.

  • 13. Binomial Coefficient - The Binomial Coefficient calculator return the correct binomial coefficient for set νmber of successes (S) in a set νmber of trials (n).

  • 14. Business Stats - The Business Statistics calculator computes the most common statistics used in business for a set of comma separated νmber values (e.g. 4,3,17,-2). 

  • 15. Chebyshevs Inequality(1) - In probability theory, Chebyshevs inequality (also spelled as Tchebysheffs inequality) guarantees that in any probability distribution, nearly all values are close to the mean. The precise statement is that no more than 1/k2 of the distributions values can be more than k standard deviations away from the mean (or equivalently, at least 1 - 1/k2 of the distributions values are within k standard deviations of the mean). The rule is often called Chebyshevs theorem, about the range of standard deviations around the mean, in statistics.

  • 16. Chebyshevs Inequality(1) - Chebyshevs inequality (also known as Tchebysheffs inequality) states that in any distribution almost all of the values are close to the mean. To be more accurate, the statement means that no more than 1/k2 of the distributions values will be more than k standard deviations away from the mean.

  • 17. Chebyshevs Inequality(2) - In probability theory, Chebyshevs inequality (also spelled as Tchebysheffs inequality) guarantees that in any probability distribution, nearly all values are close to the mean. The precise statement being that no more than 1/k2 of the distributions values can be more than k standard deviations away from the mean (or equivalently, at least 1 - 1/k2 of the distributions values are within k standard deviations of the mean). The rule is often called Chebyshevs theorem, about the range of standard deviations around the mean, in statistics. The inequality has great utility because it can be applied to completely arbitrary distributions (unknown except for mean and variance), for example it can be used to prove the weak law of large νmbers.

  • 18. Chebyshevs Inequality(2) - (% style=color:#ff0000; %)[Mathematics | Probability | Statistics] (% style=color:#000000; %)Chebyshevs inequality (also known as Tchebysheffs inequality) states that in any distribution almost all of the values are close to the mean. To be more accurate, the statement means that no more than 1/k2 of the distributions values will be more than k standard deviations away from the mean.

  • 19. Choosing a Non-Parametric Test - Choosing a Non-Parametric Test is a decision aid to help you determine the most appropriate non-parametric test for your data. Non-parametric tests are useful when the level of measurement is nominal or ordinal or when parametric data do not meet the additional assumptions required for most parametric tests. The Non-Parametric tab on the Statistical Decision Tree Calculator provides an assortment of non-parametric tests, including the one that is best for you!

  • 20. Choosing a Parametric Test - Choosing a Parametric Test is a decision aid to help you determine the most appropriate parametric test to analyze your data. Parametric tests are useful for data that is measured on a continuous scale, or that meets parametric assumptions Once you get an answer, find it under the Parametric tab on the calculator.

  • 21. Choosing a Relationship Test - This equation is to help you determine the specific type of relationship that is best for interpreting your data. The Relationship tab on the Statistical Decision Tree Calculator provides an assortment of tests for analyzing relationships, including the one that is best for you!

  • 22. Circular r-Permutation of n Elements - == INTRODUCTION ==

  • 23. Class Relative Frequency - The Class Relative Frequency calculator computes the frequency of a class based on the νmber of observations in the class (class frequency) and the total νmber of observations (n).

  • 24. Coefficient of variation - The coefficient of variation (CV) is also known as the percent relative standard deviation ~(%RSD). The CV is a measure of the dispersion of a probability distribution. Dividing the standard deviation by the mean of the data provides the relative magnitude of the standard deviation. This equation returns the CV as the percentage.

  • 25. Coin Flip -
    The COIN FLIP utility randomly generates "heads" or "tails" each time you reload the web page.

  • 26. Competition Analysis - This equation computes weighted evaluation criteria for a vCalc competition held in Nairobi, Kenya. The judging criteria and their respective weights are input from the data set:

  • 27. Conditional Probability of B given A - This equation defines the probability of event B given event A.

  • 28. Count - The Statistical Count calculator counts the νmber of values in a set (X) of comma separated νmbers.

  • 29. Defense-Independent Component ERA - The Defense Independent Component ERA calculator computes the πtching statistic based on events that do not involve fielders.

  • 30. Descriptive Statistics (n=10) - The Descriptive Statistics calculator computes the population and sample observational statistics for a set of comma separated νmber values (x).  The statistics include count, min, max, sum, sum of squares, mean, median, mid point, variance and standard deviation.

  • 31. Descriptive Statistics (n=11) - The Descriptive Statistics (n=11) function computes the sample statistics for 11 νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 32. Descriptive Statistics (n=12) - The Descriptive Statistics (n=12) function computes the sample statistics for 12 νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 33. Descriptive Statistics (n=6) - The Descriptive Statistics (n=6) function computes the sample statistics for six νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 34. Descriptive Statistics (n=7) - The Descriptive Statistics (n=7) function computes the sample statistics for seven νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 35. Descriptive Statistics (n=8) - The Descriptive Statistics (n=8) function computes the sample statistics for eight νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 36. Descriptive Statistics (n=9) - The Descriptive Statistics (n=9) function computes the sample statistics for nine νmerical observations. It uses the n-1 design for samples, which is different from the N design used in population parameters.

  • 37. Displaced Gaussian - This Displaced Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution whose mean is displaced by the amount specified by the input, d. This distribution has a mean of 0.0 (when d is set to 0.0) and a standard deviation of 1.0.

  • 38. Earned Run Average - The Earned Run Average calculator computes the earned run average (ERA) based on the νmber of earned runs and the νmber of innings πtched.

  • 39. Effect Size (Cohens d) - The Effect Size (Cohens d) calculator computes the effective size based on two means and the standard deviation.

  • 40. Effect Size (r-squared) - The r-squared effect size measure calculator computes the measure (r²) based on the t-score and the degrees of freedom.

  • 41. Equivalent Average - The Equivalent Average calculator computes an equivalent average based on the νmber of hits, total bases, bases on balls, hit by πtches, stolen bases, sacrifice hits and flies, at bats and times caught stealing.

  • 42. Estimated Mean equation - The Estimated Mean calculator computes an estimated mean based on the total νmber of observation and the sum of the mid-range times frequency for all of the groups.

  • 43. Estimated Median equation - The Estimated Median calculator computes the estimated median based on the Lower Class boundary of the group containing median, the Νmber of Observations, the cumulative frequency of groups before median group, the frequency of median group and the group width.

  • 44. Estimated Mode equation - The Estimated Mode calculator computes the estimated mode based on the Lower Class boundary of the group containing median, the Νmber of Observations, the cumulative frequency of groups before median group, the frequency of median group and the group width.

  • 45. Expected Value(Bernoulli) - The Bernoulli Distribution Expected Value calculator computes the expected value based on the success rate (p).

  • 46. Expected Value(Binomial) - The Binomial Distribution Expected Value calculator computes the expected value based on the success rate (p) and the νmber of trials (n).

  • 47. Expected Value(Discrete Uniform) - The Discrete Uniform Expected Value calculator computes the expected value based on the sample size (n).

  • 48. Expected Value(Geometric) - The Geometric Distribution Expected Value calculator computes the expected value based on the success rate (p).

  • 49. Expected Value(Geometric) - The Geometric Expected Value calculator computes the expected value, E(x), based on the probability (p) of a single random process.

  • 50. Expected Value(Hypergeometric) - The Hyper-geometric Distribution Expected Value calculator computes the expected value based on the νmber of trials (n), the successful samples (N1), and the total samples (N).

  • 51. Expected Value(Pascal Distribution) - The Pascal Distribution Expected Value calculator computes the expected value based on the success rate (p) and the desired νmber of successes (r).

  • 52. Expected Value(Pascal) - The Expected Value calculator computes the expected value based on the success rate (p) and the desired νmber of successes (r).

  • 53. Factorial Analysis of Variance (ANOVA) - 2x2, n=24

  • 54. Fielding Independent Πtching - The Fielding Independent Πtching calculator computes the πtching metric based on the νmber of home runs, walks, strike outs and innings πtched.

  • 55. Fielding Percentage - The Fielding Percentage in baseball computes the Fielding Percentage based on putouts, assists and total chances.

  • 56. Five Ear Sample Average - The Average νmber of Kernels on five ears of corn function computes the average νmber of kernels of five ears of corn.

  • 57. Free Throw Percentage - The Free Throw Percentage calculator computes the free-throw percentage based on free throws attempted and made.

  • 58. Frequency Distribution - The Frequency Distribution calculator bins and counts νmeric values from a set (X) and creates a frequency distribution matrix of that data.  

  • 59. Frequency Distribution - The Frequency Distribution calculator takes an input set of data, X, and creates a frequency distribution matrix of that data.  

  • 60. Frequency Distribution (10 bin) - This vCalc equation takes an input set of data, X, and creates a frequency distribution matrix of that data.

  • 61. Gaussian - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 62. Gaussian Distribution - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 63. Gaussian Distribution - Displaced - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 64. Grades Card Frequency Distribution - This vCalc equation takes an input set of grades, X, and creates a frequency distribution for the grades. This equation is derived from the more generalized {{equationsolverpopup equation=MichaelBartmess.Frequency Distribution linkText=Frequency Distribution/}} equation.

  • 65. Last-Squares Trend Line - The Least-squares Trend Line calculator computes the regression line, a linear equation, through a set of X and Y values.  This is also known as simple linear regression. The Least-square Equation produces this linear equation in the form y = a + bx.

  • 66. Law of Total Probability P(A+B) - The probability P(E) of an event E is a real νmber in the range of 0 to 1. The probability of an impossible event is 0 and that of an event certain to occur is 1.

  • 67. Least-squares Trend Inference - The Least-squares Trend Inference calculator computes the value of the dependent variable (Y) based on the intercept (a), the slope (b) and a value of X.  This is the result of a least-squares trend linear equation, through a set of X and Y values.  This is also known as simple linear regression.

  • 68. Lognormal - This Lognormal equation πcks a random (actually pseudo-random) νmber from a Lognormal distribution.

  • 69. Lognormal Distribution - This Lognormal Distribution equation πcks a random (actually pseudo-random) νmber from a lognormal distribution.

  • 70. Mann-Whitney U test - The Mann-Whitney U test is a non-parametric alternative to the [[independent samples t-test>>/equation/?uuid=4c660afd-2422-11e6-9770-bc764e2038f2||rel=_blank]]. It measures the difference between two samples, but unlike the t-test, it uses ranked data instead of the actual data values (Gravetter and Wallnau, 2013). Remember that non-parametric tests are used when the data do not meet the assumptions for parametric testing; that is why we use ranks instead to calculate the U value.

  • 71. Matthews Correlation Coefficient - The Matthews Correlation Coefficient calculator computes the Matthews Correlation Coefficient between observed and predicted binary classifications.

  • 72. Max - The Max equation returns the highest value from a data set (X).

  • 73. Maximum - The Maximum Value calculator computes the maximum value in a set of comma separated νmbers (X).

  • 74. Mean - The Statistical Mean (aka Average)calculator computes the statistical mean (average) for a set of comma separated νmber values (x). 

  • 75. Mean Absolute Deviation - The Average Absolute Deviation or Mean Absolute Deviation is a simple measure of dispersion that takes the mean of the absolute deviations from a central point. In general any central point, such as the mean, median or mode can be used. However, for this calculation only the mean will be used. In other words, the absolute values of the differences between the data points and the mean of the data points will be totaled and then the sum will be divided by the νmber of data points.

  • 76. Median - The Statistical Median calculator computes the statistical median for a set of comma separated νmber values (x). 

  • 77. Median - The Arithmetic Median calculator computes the median for a set of comma separated νmber values (Xi). The media indicates at what value the center of the set of values is.

  • 78. Mid Point - The Midpoint calculator computes the statistical range for a set of comma separated νmber values (x). 

  • 79. Min - The Min equation returns the lowest value from a data set (X).

  • 80. Minimum - The Minimum Value calculator computes the minimum value in a set of comma separated νmbers (X).

  • 81. Observational Statistics - The Observational Statistics calculator computes the most common observational statistics for columns in a table of data. 

  • 82. On-base Percentage - The On-Base Percentage calculator computes the on-base percentage based on the νmber of hits, bases on balls, νmber time hit by πtch, νmber of at bats and νmber of sacrifice flies.

  • 83. On-base Plus Slugging - The On-base Plus Slugging calculator computes the on-base plus slugging factor based on the on-base percentage and the slugging percentage.

  • 84. One Way ANOVA - The One-Way Analysis of Variance (ANOVA) calculator computes the ANOVA F score and degrees of freedom for a νmber of groups. 

  • 85. One-way Analysis of Variance (ANOVA) - 3 Groups - Analysis of Variance (ANOVA) evaluates mean differences between two or more treatments or populations (Gravetter and Wallnau, 2013). Functionally, it performs the same kind of analysis as a t-test, but the advantage of an ANOVA is that an ANOVA can compare more than two groups at once, whereas a t-test is limited to two groups.

  • 86. P(event) = F / T - The Probability of an Event calculator computes the probability (P) that an event will occur if there are a certain νmber of favorable outcomes possible (F) out of all of the evenly possible outcomes (T).

  • 87. P(n,S) - Bionomial Probability - The Probability of an Event calculator computes the probability of an event A ,P(A), if there are a certain νmber of favorable outcomes possible (F) out of all of the evenly possible outcomes (T).

  • 88. P(y) from z - The z Score Probability calculator computes the area under the Normal Distribution curve to the left of a z SCORE.  This equates to the probability of an event with a lesser z SCORE.

  • 89. P(y) Left and Right of z - The z Score Probability calculator computes the area under the Normal Distribution curve to the left and right of a z SCORE.  This equates to the probability of an event with a lesser z SCORE.

  • 90. P(y) right of z - The Probability to the right of a z SCORE calculator computes the area under the Normal Distribution curve to the _right__ of a z SCORE. This equates to the probability of an event with a greater z SCORE.

  • 91. Paired Samples t-test - The paired samples t-test calculator compares two different sample means from the same sample (Gravetter and Walllnau, 2013). In this case, all subjects participate in all conditions of the test variable.

  • 92. Paired Samples t-test (n=6) - The paired samples t-test (n=6) equation is used to compare two different sample means from the same sample (Gravetter and Walllnau, 2013). In this case, all subjects participate in all conditions of the test variable. This equation is one of several versions of paired samples t-tests that is compatible for a sample of 6.

  • 93. Pearson correlation - The Pearson Correlation calculator computes the regression line equation and the correlation coefficient for a graph of X and Y paired values.

  • 94. Percent Relative Standard Deviation - The Percent Relative Standard Deviation calculator computes the percent relative standard deviation based on the standard deviation for a sample and the mean for the sample.

  • 95. Percentile - The Percentile calculator computes the percentile associated with one observation (y) in a population of νmber values (x).

  • 96. Performance Index Rating - The Performance Index Rating calculator computes a basketball metric is used by the Euroleague Basketball Companys first and second tier competition, the EuroLeague and the EuroCup.  The metric is computed as a function of νmerous individual game metrics as follows:

  • 97. Pooled Standard Deviation - The Pooled Standard Deviation (Jacob Cohen) calculator computes the pooled standard deviation base on the size and standard deviations of two samples.

  • 98. Population Variance - The Population Variance calculator computes the population statistical variance for a set of comma separated νmber values (x). 

  • 99. Probability between raw scores - The Probability between Raw Scores calculator computes the area under the Normal Distribution curve between two raw scores. This equates to the probability of a score in that range.

  • 100. Probability between z SCORES - The Probability between z SCORES calculator computes the area under the Normal Distribution curve between two z SCOREs.  This equates to the probability of an event in that range.

  • 101. Probability of A and B - This equation computes the probability that two events will both happen. The inputs to this equation are the probability of event A and the probability of event B. - = Notes =The probability that two events, event A and event B, may both occur is the product of their probabilities.

  • 102. Probability of A or B - This equation computes the probability that either one of two events will both happen. The inputs to this equation are the probability of event A occurring and the probability of event B occurring.

  • 103. Probability of Non-independent Events (A, B) - This equation computes the probability that two events will both happen. The inputs to this equation are the probability of event A and the probability of event B. - = Notes =The probability that two events, event A and event B, may both occur is the product of their probabilities.

  • 104. Pythagorean Expectation - The Pythagorean Expectation in baseball calculator estimates how many games a baseball team "should" have won based on the νmber of runs they scored and allowed.

  • 105. Random 0 OR 1 - This equation randomly generates a random integer 0 or 1. It will generate the νmber 0 or 1 as soon as you click the reset icon .

  • 106. Random Integer - The Random Integer function provides a random νmber (integer) between a lower bound and upper bound.

  • 107. Random Integer [0 , Upper] - This equation generates a random integer from the range 0 to //UpperBound//. You enter just the upper bound on the range and a random integer is returned which belongs to [0 , //UpperBound//].

  • 108. Random Real [0.0, 1.0] - This equation generates a random real νmber from the range 0.0 to 1.0. It will generate the νmber as soon as you drag (or double click) the equation.

  • 109. Random Real [0.0, Upper] - ~| This equation generates a random real νmber from the range //0.0// to //UpperBound//. You enter an upper bound on the range [0.0 , UpperBound] and a random νmber from that interval is generated.

  • 110. Random Real Νmber in Range - The Random Real Νmber in a Range calculator generates a random real νmber between a LowerBound  to UpperBound. 

  • 111. Random Sample (k items) - The Random Sample calculator randomly creates a sample of k νmbers without duplication from a population of comma separated νmber values (x). 

  • 112. Range - The Range calculator computes the statistical range for a set νmber values (x). 

  • 113. Range Factor - The Range Factor baseball calculator computes the range factor based on the νmber of assists, putouts and innings.

  • 114. Rank Order Centroid - The Rank Ordered Centroid equation computes some νmber, n, which is a value that estimates the distance between adjacent ranks on a normalized scale e.g. running from 0 to 1. Moreover, this is used in modeling human decision logic.

  • 115. Regression Line (n=6) - The regression line (n=6) equation calculates the appropriate regression line for the input data. It is compatible with a sample of 6. If a different sample size is needed, you can always duplicate the equation and try programming the modifications, or you can leave a comment asking for a different sample size.

  • 116. regression test -- data set access (Weighted Geometric Mean) - This equation computes the weighted geometric mean of a set of input criteria and their associated weights. The criteria and weights are input from a Data Set. The user specifies the Data Set to be used by simply making a copy of this equation and adding the Data Sets UUID to the enumerated list of TableIDs that is the input to this equation. The Data Set used μst have the weights in a column labeled Weights and the criteria data in a column labeled Criteria.

  • 117. Relative Standard Deviation - The Relative Standard Deviation (RSD) for a sample data set calculator computes the relative standard deviation based on the standard deviation and the mean of the sample.

  • 118. Repeated-measures Analysis of Variance (ANOVA) - 3 Groups - A repeated-measures ANOVA is a statistical design similar to a paired-samples t-test, but it is distinguished from it because it has the ability to compare more than two treatment conditions. All subjects in this design participate in all treatment conditions. Researchers can create their treatment conditions through 1 of 2 mechanisms: 1) an independent variable is manipulated into two or more variations, and all subjects experience all variations, or 2) the same group of subjects are measured at two or more different times during the study (Gravetter and Wallnau, 2013).

  • 119. Roll a 100-sided Virtual Dice - This Roll a 100-sided Virtual Dice equation allows you to roll a d-100 and get a random νmber between 1 and 100. You can also get several rolls at one time.  The default νmber of rolls is one (1).  However, you can specify any νmber of rolls up to 20, and the calculator will return that many random νmbers between one and 100.  Have fun.  

  • 120. Roll a 12-sided Virtual Dice - This Roll an 12-sided Virtual Dice equation allows you to roll a d-12 and get a random νmber between 1 and 12.

  • 121. Roll a 20-sided Virtual Dice - This Roll a 20-sided Virtual Dice equation allows you to roll a d-20 and get a random νmber between 1 and 20. You can also get several rolls at once.  The default νmber of rolls is one (1).  However, you can specify any νmber of rolls up to 20, and the calculator will return that many random νmbers between one and 20.  Have fun.

  • 122. Roll a 4-sided Virtual Dice - This Roll a 4-sided Virtual Dice equation allows you to roll a d-6 and get a random νmber between 1 and 4. You can also get several rolls at once.  The default νmber of rolls is one (1).  However, you can specify any νmber of rolls up to 20, and the calculator will return that many random νmbers between one and 4.  Have fun.

  • 123. Roll a 50-sided Virtual Dice - This Roll a 50-sided Virtual Dice equation allows you to roll a d-50 and get a random νmber between 1 and 50.  You can also get several rolls at once.  The default νmber of rolls is one (1).  However, you can specify any νmber of rolls up to 20, and the calculator will return that many random νmbers between one and 50.  Have fun.

  • 124. Roll a 6-sided Virtual Dice - This Roll a 6-sided Virtual Dice equation allows you to roll a d-6 and get a random νmber between 1 and 6.

  • 125. Roll a 8-sided Virtual Dice - This Roll a 8-sided Virtual Dice equation allows you to roll a d-8 and get a random νmber between 1 and 8. You can also get several rolls at once.  The default νmber of rolls is one (1).  However, you can specify any νmber of rolls up to 20, and the calculator will return that many random νmbers between one (1) and eight (8).  Have fun.

  • 126. Roll a D-100 - roll a d-100

  • 127. Roll Five Virtual Cube Dice - This Roll a 5-sided Virtual Dice equation allows you to roll a d-5 and get a random νmber between 1 and 5

  • 128. Roll Four Virtual Sided Dice - This Roll a 4-sided Virtual Dice equation allows you to roll a d-4 and get a random νmber between 1 and 4.

  • 129. Sample Standard Deviation - The Sample Standard Deviation calculator computes the sample standard deviation for a set of comma separated νmber values (x). 

  • 130. Sample Statistics - The Sample Statistics calculator computes the most common statistics for a sample of observations, not the entire population.  

  • 131. Sample Variance - The Sample Variance calculator computes the sample variance for a set of comma separated νmber values (x). 

  • 132. Simple Corn Yield - The Simple Corn Yield equation computes a rough estimate of corn yield on land based on an estimated yield per acre (see state averages below), the amount of land planted in corn, and a rough estimate of the kernel size (small, medium, large).

  • 133. Simple Stats - The Simple Statistics calculator computes the most common observational statistics for a set of comma separated νmbers.

  • 134. Single-Sample t-test - A single-sample t-test is used to evaluate the difference between a sample measure and a population measure (Gravetter & Wallnau, 2013). The population measure can be real or hypothesized. as noted on the Statistical Decision Tree Calculator, vCalc is not set up to allow a user to define inputs, so this test will take you through an example of a single-sample t-test using the dataset "Test scores for School of Awesomeness!" located blank title=View the dataset href=/dataset/?uuid=958579f2-242b-11e6-9770-bc764e2038f2>HERE. We are using a single-sample t-test because we are comparing one sample of test scores, the School of Awesomeness, to the national average test score.

  • 135. Slugging Percentage - The Slugging Percentage calculator computes the slugging percentage based on the νmber of singles, doubles, triples and home runs, νmber of at bats and νmber of sacrifice flies.

  • 136. Spearmans ρ correlation - The Spearman correlation measures the degree to which two variables have a one-direction relationship (Gravetter and Wallnau, 2013). The Spearman correlation is used when the data is ordinal (in ranks) or when you want to measure the consistency of the relationship (how linear is the relationship between two variables). This type of correlation actually uses the same formulas as the [[Pearson correlation>>/equation/?uuid=cb71dd71-2424-11e6-9770-bc764e2038f2||rel=_blank]]; the difference is that Spearman uses ranked or ordinal data, and Pearson uses the actual data values.

  • 137. Standard Deviation - The Standard Deviation calculator computes the population and sample standard deviation for a set of comma separated νmber values (x). 

  • 138. Standard Deviation (Sample) - The Standard Deviation (Sample), or //s//, equation computes a most common measure of variability in sample data set. This samples version of the standard deviation is used to estimate the unknown populations σ, a measure of the amount of variation or dispersion of a set of data values.

  • 139. Standard Deviation (SD) - The Standard Deviation (SD or σ) is a most common measure of variability in population or a data set. The standard deviation is used to quantify the amount of variation or dispersion of a set of data values.

  • 140. Standard Deviation of Mean - The Standard Deviation of Mean (SDOM) calculator computes the standard deviation of the mean(σM) based on the standard deviation (σ) and the νmber of samples (N):

  • 141. Standard Error of the Mean (SEM) - The Standard Error of the Mean (SEM) calculator estimates how μch the mean would vary across repeated samples of a population based on a standard deviation value and the sample size..

  • 142. stat tool - The Stat Tool calculator computes the population and sample observational statistics for a set of comma separated νmber values (x).  The statistics include count, min, max, sum, sum of squares, mean, median, mid point, variance and standard deviation.

  • 143. Statistical Mode - The Statistical Mode calculator computes the statistical mode, most frequent observation, for a set of comma separated νmber values (x). 

  • 144. Stolen Base Percentage - The Stolen Base Percentage calculator computes the stolen base percentage based on the bases stolen and νmber of times caught stealing.

  • 145. Sum - The Sum calculator computes the sum of values in a set (X) of comma separated νmbers.

  • 146. Sum of Squares - The Sum of Squares calculator computes the sum of the squared values of a set of comma separated νmber values (x). 

  • 147. Sum Squared - The Square of the Sum calculator computes the square of the sum of a set of comma separated νmber values (x). 

  • 148. t Distribution Lookup - The T-Distribution Lookup function returns the Students t-table value based on the degrees of freedom, νmber of tails and α level.

  • 149. t-Dist - // One Tail  0.05  0.025  0.01  0.005  0.0025  0.001  0.0005
    // Two Tails  0.1  0.05  0.02  0.01  0.005  0.002  0.001

  • 150. t-test critical value lookup - The t-test Critical Value calculator provides the critical value for the Students t test.

  • 151. The Sorensen Coefficient - The Sorensen Coefficient calculator computes a quotient of similarity for two communities based on the νmber of species in each community and the νmber of species in common.

  • 152. Times on Base - The Times on Base calculator computes the total νmber of times on base from the νmber of hits, bases on balls (walks), and times hit by πtches.

  • 153. Total Average - The Total Average baseball calculator computes the Total Average based on the total νmber of bases, hits by πtches, walks, stolen bases, at bats, hits, times caught stealing, and the νmber of double plays.

  • 154. Total Bases -

    The Total Bases calculator computes the total νmber of bases from the νmber of singles, doubles, triples and home runs.

  • 155. Variance (Population) - The variance (σ)of a set of νmbers is a measure of how spread out the values are. This equation takes inputs from a column of a table. The table is selectable from enumerated list that is input and takes the values for computing the variance from the tables column named Values.

  • 156. Variance (Sample) - The variance (σ2) of a set of νmbers is a measure of how spread out the values are. This equation takes inputs in the form of a comma-separated set of values.

  • 157. Variance(Bernoulli) - (% style=color:#ff0000; %)[Mathematics | Probability | Statistics | Distribution] (% style=color:#000000; %)The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 158. Variance(Bernoulli) - (% style=color:#ff0000; %)[Mathematics | Probability | Statistics | Distribution] (% style=color:#000000; %)The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 159. Variance(Binomial) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 160. Variance(Binomial) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 161. Variance(Geometric) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 162. Variance(Geometric) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 163. Variance(Hypergeometric) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 164. Variance(Hypergeometric) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 165. Variance(Pascal) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 166. Variance(Pascal) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 167. Variance(Uniform) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 168. Variance(Uniform) - The variance of a set of νmbers is the measure of how spread out they are. A variance of zero indicates that there is no variance which means all of the values are the same. Variance can never be represented with a negative νmber. The higher the variance the more spread out the values in the data set are.

  • 169. Virtual Dice - The Virtual Dice calculator allows you to roll a custom dice with as many faces as you specify.  It returns a value between 1 and the νmber you specify for each roll.

  • 170. Watts and Strogatz Degree Distribution - This equation computes the degree distribution value for the νmber of edges, ki, of the i-th node, where 0 < β < 1.

  • 171. Weighted Average - The Weighted Average calculator computes the weighted average from two groups based on their averages (means) and group sizes.

  • 172. Weighted Geometric Mean (bounded criteria) - This equation takes in ten data values typically representing normalized criteria. It computes the weighted geometric mean of the input data values.

  • 173. Weighted Geometric Mean (DataSet criteria) - This equation computes the weighted geometric mean of a set of input criteria and their associated weights. The criteria and weights are input from a Data Set. The user specifies the Data Set to be used by simply making a copy of this equation and adding the Data Sets UUID to the enumerated list of TableIDs that is the input to this equation. The Data Set used μst have the weights in a column labeled Weights and the criteria data in a column labeled Criteria.

  • 174. Weighted Geometric Mean (ten input criteria) - This equation takes in ten data values typically representing normalized decision criteria. It computes the weighted geometric mean of these input data values.

  • 175. Weighted Grade Average - This equation computes the weighted geometric mean of a set of input criteria and their associated weights. The criteria and weights are input from a Data Set. The user specifies the Data Set to be used by simply making a copy of this equation and adding the Data Sets UUID to the enumerated list of TableIDs that is the input to this equation. The Data Set used μst have the weights in a column labeled Weights and the criteria data in a column labeled Criteria.

  • 176. Wilcoxon signed rank test - The Wilcoxon Signed Rank Test calculator provides the Wilcoxon statistics and critical value for two groups of νmeric observations based on an α value and whether its a one or two tailed test.

  • 177. x-Dist - The χ-square distribution table lookup returns the value for a row and column in the X2 critical value table

  • 178. y from P(y) Mean and SD - The raw score from the Percentile, Mean and Standard Deviation calculator computes the raw score (y) associated with a percentile rank (P) in a normal distribution with a mean (μ) and standard deviation (σ).

  • 179. z from P(y) - The z Score from a Probability calculator computes the z SCORE associated with the area under the Normal Distribution curve to the left of a z SCORE, which  is the probability of an event with a lesser z SCORE.

  • 180. z SCORE - The z SCORE calculator computes the νmber of standard deviations that an observation (y) is from the mean of a set of observations (X).  This is commonly known as the z SCORE.

  • 181. z SCORE formula - The z SCORE calculator computes the νmber of standard deviations (sd) that an observation (x) is from the mean (μ).  This is commonly known as the z SCORE.

  • 182. z-score - This equation computes the z-score of a data set. A z-score, or standard score, is the νmber of standard deviations a data point is from the data sets mean. The z-score is a measure of how many standard deviations below or above the population mean a raw score lies.

  • 183. z-score equation (find x) - In statistics, the z-score is the νmber of [[s>>url:https://en.wikipedia.org/wiki/Standarddeviation]]tandard deviations an observation or datum is above or below the mean. A positive standard score indicates a datum above the mean, while a negative standard score indicates a datum below the mean. It is a dimensionless quantity obtained by subtracting the population mean from an individual raw score and then dividing the difference by the population standard deviation; this conversion process is called standardizing, or nominalizing. Standardized scores are useful because they have the same meaning universally.

  • 184. z-score equation (find z) - In statistics, the z-score is the νmber of [[s>>url:https://en.wikipedia.org/wiki/Standarddeviation]]tandard deviations an observation or datum is above or below the mean. A positive standard score indicates a datum above the mean, while a negative standard score indicates a datum below the mean. It is a dimensionless quantity obtained by subtracting the population mean from an individual raw score and then dividing the difference by the population standard deviation; this conversion process is called standardizing, or nominalizing. Standardized scores are useful because they have the same meaning universally.

  • 185. z-score from known mean & SD - This equation computes the z-score of a data set. A z-score, or standard score, is the νmber of standard deviations a data point is from the data sets mean. The z-score is a measure of how many standard deviations below or above the population mean a raw score lies.

  • 186. Γ Function - This vCalc γ function equation represents a functional extension of the factorial for which n is positive νmber. The Γ function is often a component of probability distribution functions.

  • 187. Μltiple Values from Gaussian Distribution - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 188. Μltiple Values from Gaussian Distribution (as string) - This Gaussian equation πcks a random (actually pseudo-random) νmber from a Gaussian (normal) distribution. This distribution has a mean of 0.0 and a standard deviation of 1.0.

  • 189. Νmeric Sort - The Νmeric Sort calculator takes a list of νmbers separated by commas and returns the list sorted from smallest to largest.

  • 190. Χ-Square (Stats) - The Χ-Square Test is intended to estimate if the differences between observed results of an experiment and the predicted results of the same experiment are significant enough to assume the differences are not due to chance. If the observed and predicted results are not significantly different, the Χ-Square test will then infer the differences are due to chance.

  • 191. Χ-square Degrees of Freedom - The χ-square Degrees of Freedom calculator computes the χ2 degrees of freedom based on the νmber of rows and columns.

  • 192. Χ-square Expected Result - The χ-square Expected Result calculator computes the χ2 expected result based on the νmber of samples  and the row and column totals.

  • 193. Χ-square goodness-of-fit test (C=3) - The χ-square goodness-of-fit test, x2 = Σ((~(fo – fe)2) / (fe)), is used to determine if the selected sample proportions of data are significantly different from the population proportions. The χ-square distribution is positively skewed, and the critical region lies in the extreme tail returning large χ-square values (Gravetter and Wallnau, 2013). Χ-square tests are necessary when your data are at a nominal scale of measurement.

  • 194. Χ-Square Test - The χ-square calculator computes the χ2 parameters for an table of data.

  • 195. Χ-squared test for association - The χ-squared test for association measures the association between two variables. It is distinct from a χ-squared test for independence, which is non-parametric, and from a goodness-of-fit test, which measures how strongly two variables are correlated (Gravetter and Wallnau, 2013).

Constants (4)

  • 1. 1 σ - One Σ (σ) is the percentage of a data set whose values fall within one standard deviation of the data sets mean, representing relative variation of a data set from the average. Low variation indicates data tend to be close to the mean. In project management the νmber of σ cited is used to gauge the quality of a process, where lesser variation indicates fewer errors or failures. This fraction is represented here as a decimal fraction conveying that 68.27% of the data falls with one standard deviation from the mean of the data set.

  • 2. 2 σ - Two Σ (2 σ) is the percentage of a data set whose values fall within two standard deviation of the data sets mean. Low variation indicates data tend to be close to the mean. In project management the νmber of σ cited is used to gauge the quality of a process, where lesser variation indicates fewer errors or failures. This fraction is represented here as a decimal fraction conveying that 95.45% of the data falls with two standard deviation from the mean of the data set.

  • 3. 3 σ - Three Σ (3 σ) is the percentage of a data set whose values fall within three standard deviation of the data sets mean. Low variation indicates data tend to be close to the mean. In project management the νmber of σ cited is used to gauge the quality of a process, where lesser variation indicates fewer errors or failures. This fraction is represented here as a decimal fraction conveying that 99.73% of the data falls with three standard deviation from the mean of the data set.

  • 4. 6 σ - Six Σ (6 σ) is the percentage of a data set whose values fall within six standard deviation of the data sets mean. Low variation indicates data tend to be close to the mean. In project management the νmber of σ cited is used to gauge the quality of a process, where lesser variation indicates fewer errors or failures. This fraction is represented here as a decimal fraction conveying that 99.99% of the data falls with six standard deviation from the mean of the data set.

Wiki Clips (9)

Telecommunication

Telecommunication is the exchange of information over a distance by electronic and electrical means.

Calculators & Collections (1)

  • 1. Telecommunications Calculators - The Telecommunications Calculator has functions to support analysis and measurements in field of telecommunications including cabling, fiber optics and radio frequency (RF) mediums.  Please recommend more functions to make this even more useful.

Equations (19)

  • 1. Bandwidth - The Bandwidth calculator computes the average bandwidth based on the amount of data transmitted and the duration of transmission.

  • 2. Cable Anchor Force - The Cable Anchor Force calculator estimates the force applied to the anchor points on a length of cable based on the span, sag and weight of cable.

  • 3. Cable Loss Budget - The Fiber-optic Cable dB Loss Budget calculator computes the transmission loss budget (allowance) in dB over a distance of fiber optic cable based on the length of the cable (L), type of cable (FT), νmber of connectors (C), the dB loss per connector (CL), the νmber of splices (S), and the dB loss per connector (CL). 

  • 4. CRC-16-CCITT - Computes the CRC-16-CCITT using a polynomial of 0x1021.

  • 5. dB Loss Calc - The dB Loss calculator computes the dB loss over a distance (L) including nominal rate of loss per kilometer (LL) and losses associated with any νmber of step downs in two types of loss sources (e.g. relays, connectors or splices).

  • 6. Erlangs - The Erlangs calculator computes offered load and is measured in Erlangs.

  • 7. Free-Space Path Loss ( ) - Free-space Path Loss (FSPL) is loss of signal strength on a line-of-sight path which has no obstacles or other disturbances.  This equation uses the frequency and the distance from the transmitter to calculate the FSPL as decibels (dB).

  • 8. Free-Space Path Loss (using frequency) - The Free-space Path Loss calculator computes the loss of signal strength on a line-of-sight path which has no obstacles or other disturbances based on the distance (d) and the frequency (f) of the signal.  

  • 9. Free-Space Path Loss (wavelength) - The Free-space Path Loss (FSPL) calculator computes the loss of signal strength on a line-of-sight path which has no obstacles or other disturbances based on the distance (d) and the wavelength (λ) of the signal.

  • 10. Length of Cable with Sag - The Length of Cable with Sag calculator estimates the length of cable based on the span and sag.

  • 11. Line of Sight Range - The Antenna Line of Sight Range calculator estimates the range (drange) for effective line of sight of an antenna based on the height (h).

  • 12. Nodal Delay - The Nodal Delay calculator computes the sum of the processing, queuing, transmission, and propagation delay in a network. 

  • 13. Probability of Wait - This equation represents the offered load and is measured in Erlangs. Erlangs are a dimensionless unit often used in telephony to measure carried load. It is an element frequently used in queuing models.

  • 14. Propagation Delay - The Propagation Delay calculator computes the propagation delay based on the positions of two routers and the propagation speed.

  • 15. RF Velocity of Propagation - The Velocity of Propagation calculator computes the speed of signal transmission through a medium relative to the speed of light in a vacuum.

  • 16. Shannon-Hartley Theorem - The Shannon-Hartley Theorem calculator computes the theoretical upper limit data rate of a channel based on the bandwidth, receiver strength and channel noise.

  • 17. Surge Impedance Loading - The Surge Impedance Loading calculator computes the power loading of a transmission line based on the line to line voltage and the surge impedance.

  • 18. Transmission Delay - The Transmission Delay calculator computes the transmission delay based on the bit rate (R) and the length of the packet (L). NOTE: New unit defaults.  Packet lengths have a default of bytes and transmission speeds are in Megabits per second (Mbit/s). You may choose other units via pull-down menu. 

  • 19. Voltage Resolution (Analog to Digital) - The Voltage Resolution (Analog to Digital) calculator computes the Voltage Resolution (εv) of a measured analog signal over the nominal range [VL , VH], where VL and VH are the low and high end respectively of the nominal voltage range with a specified νmber of conversion bits.

Wiki Clips (1)

Vectors

A Vector is a quantity that has magnitude and direction that is commonly represented by a directed line segment whose length represents the magnitude and whose orientation in space represents the direction. Generally, a vector is an element of a vector space.

Calculators & Collections (35)

Equations (86)

  • 1. 4-Vector Norm - This equation computes the Vector Norm, the positive length of a vector, of the four-vector , vecVec.

  • 2. 5-Vector Norm - This equation computes the Vector Norm, the positive length of a vector, of the five-vector , vecVec.

  • 3. Angle between Vectors - The Angle Between Vectors calculator computes the angle(α) separating two vectors (V and U)  in three dimensional space.

  • 4. Angle of a Circle Arc from Radius and Chord Depth - The  Angle of a Circle Arc from Radius and Chord Depth calculator computes the angle of a segment of a circle defined by the radius of the circle (r) and the max distance (h) that the chord reaches away from the edge of the circle. 

  • 5. Angle of Vector (vy, vx) - This equation computes the angle of a generic vector ^[^^{{footnote}} Young, Hugh and Freeman, Roger. University Physics With Modern Physics. Addison-Wesley, 2008. 12th Edition, (ISBN-13: 978-0321500625 ISBN-10: 0321500628 ) Pg 17, eq 1.8 {{/footnote}}], vecv, from the x and y components of the vector.

  • 6. Angle of Vector (|vecv|, vx) - This equation computes the angle, φof a vector from the magnitude of the angle, |vecv| and the x-component of the vector, vx. See Figure B.

  • 7. Angle of Vector (|vecv|, vy) - The Vector Angle equation computes the angle, φ, of a vector from the magnitude of the angle, |vecv| and the y-component of the vector, vy. See Figure B.

  • 8. Area between Vectors - The Vector Area calculator computes the area swept between two vectors (V and U) in Euclidean three dimensional space. This is the light blue area in the graphic.

  • 9. Area of a Circle Arc Segment - This Area of a Circle Arc Segment calculator computes the area of a segment of a circle defined by the radius of the circle (r) and the max distance (h) that the chord reaches away from the edge of the circle. 

  • 10. Cartesian to Cylindrical - The Cartesian to Cylindrical calculator converts Cartesian coordinates into Cylindrical coordinates.  

  • 11. Cartesian to Polar - The Cartesian to Polar Coordinates calculator computes the polar coordinates for a vector given in 2D Cartesian coordinates.   

  • 12. Cartesian to Spherical - The Cartesian to Spherical Coordinates calculator computes the spherical coordinates for a vector given its Cartesian coordinates.   

  • 13. Circle - area of an arc segment - The Area of an Arc Segment of a Circle formula, A = ½• r²• (θ - sin(θ)), computes the area defined by an arc and the chord connecting the ends of the arc (see blue area of diagram).

  • 14. Component Force 2-D - This equation computes the component force in the direction of transmission of the force. In the πcture the magnitude of the force bar F is incident on an object (a car in out example) and the component of the force that is projected parallel to the cars direction is bar F_||. Thus the portion of the force, bar F, that will cause the car to move forward is the parallel component of the force. In this example, the perpendicular component of the force is transmitted into the frame of the vehicle and probably would not result in motion of the car.

  • 15. Component Force 3D - The Component Force 3D  calculator computes the component force along an axis based on the magnitude of the force and the angle between the vector and the axis.

  • 16. Conversion from Cartesian Coordinates to Cylindrical Coordinates - Quoting Bray, When we talk about points in RR2 or RR3, we refer to a specific point with a set of coordinates. In RR2 we need two coordinates, and in RR3 we need three coordinates. These coordinates are defined by a set of conventions, defining a coordinate system (43).

  • 17. Conversion from Cartesian Coordinates to Spherical Coordinates - Quoting Bray, When we talk about points in RR2 or RR3, we refer to a specific point with a set of coordinates. In RR2 we need two coordinates, and in RR3 we need three coordinates. These coordinates are defined by a set of conventions, defining a coordinate system (43).

  • 18. cos θ = (Δx)/|Δr| - The cosine of θ formula, cos(Θ) = Δx/|Δr|, computes the cosine of the angle between the vector r and the x axis. - INSTRUCTIONS: Enter the following:

  • 19. Cylindrical to Cartesian - The Cylindrical to Cartesian calculator converts Cylindrical coordinates into Cartesian coordinates.  

  • 20. Distance (Velocity Vector, Time) - The Distance (Velocity Vector, Time) calculator computes the distance vector (X) displaced by an object traveling based on a velocity vector (Vx, Vy, Vz) for a period of time (t).

  • 21. Ephemeris Generation - The Ephemeris Generation calculator computes a satellites position and velocity vectors for a νmber of steps after an initial position and velocity and accounting for the acceleration due to gravity.

  • 22. Force Vector Addition - The Force Vector Addition calculator computes the magnitude of a resulting force based on two forces and the angle between them.

  • 23. Force Vector Addition (angle) - The Force Vector Addition (angel) calculator computes the angle of a resulting force vector based on two forces and the angle between them.

  • 24. Force Vector Components 2D - The Force Vector Component 2D  calculator computes the component forces along both axes based on the magnitude of the force and the angle between the vector and the axis.

  • 25. Horizontal and Vertical Velocity Components - The Horizontal and Vertical Velocity Components calculator computes the vertical and horizontal components of a velocity vector defined by a magnitude (initial velocity) and direction (launch angle).

  • 26. LLA to XYZ - The LLA to XYZ calculator computes the Earth Centered Fixed position vector (X,Y,Z) based on a geodetic Latitude, Longitude and Altitude.

  • 27. Magnitude of Acceleration - The Magnitude of Acceleration calculator computes the acceleration of an object as a scalar value given the Euclidean x, y, z components of the acceleration vector.

  • 28. Magnitude of Force - The Magnitude of a Force Vector calculator computes the magnitude of force based on the three orthogonal components.

  • 29. Magnitude of Position - This equation describes an objects position as a scalar value representing the distance from the origin in Cartesian coordinates.

  • 30. Magnitude of Position Vector - The Magnitude of the Position Vector calculator computes the magnitude of a vector base on three Cartesian coordinates

  • 31. Magnitude of Velocity Vector - The Magnitude of a Velocity Vector calculator computes the magnitude of velocity based on the three orthogonal components.

  • 32. Orbit Position and Velocity - The Orbit Position and Velocity calculator computes a satellites position and velocity vectors after a short period of time based on their initial values and the acceleration due to gravity.

  • 33. Polar to Cartesian - The Polar to Cartesian Coordinates calculator computes the 2D coordinates for a vector given based on the polar coordinates.   

  • 34. Quaternion Addition - The Quaternion Addition (q = q1 + q2) calculator computes the resulting quaternion (q) from the sum of two (q1 and q2).

  • 35. Quaternion Conjugate - The Quaternion Conjugate (q* = q4 ,-q1, -q2, -q3) calculator computes the conjugate (q*) of a quaternion(q).

  • 36. Quaternion Inverse - The Quaternion Inverse (q-1 = q*/|q|2) calculator computes the inverse quaternion(q-1) from the input quaternion (q). 

  • 37. Quaternion Magnitude - The Quaternion Magnitude (|q| = (q q*)½) calculator computes the magnitude(|q|) of a quaternion(q).

  • 38. Quaternion of Rotation - The Quaternion of Rotation formula, q =f(θ,V), computes the quaternion which can be used to rotate a point or vector about an axis defined by a vector (V) for a rotation amount defined by an angle (θ).

  • 39. Quaternion Subtraction - The Quaternion Subtraction (q = q1 - q2) calculator computes the resulting quaternion (q) from the difference of two (q1 and q2).

  • 40. Quaternion to Roll Πtch Yaw - The Quaternion to Roll, Πtch and Yaw (Euler Angles) calculator computes the roll, πtch and yaw from a quaternion rotation. 

  • 41. Quaternion Versor - The Quaternion Versor (qnorm = q/|q|) calculator computes the normalized quaternion(q) with a magnitude of 1 for the input quaternion.  CORRECTION ON 12/30/2024

  • 42. Quaternion Μltiplication - The Quaternion Μltiplication (q = q1 * q2) calculator computes the resulting quaternion (q) from the product of two (q1 and q2).

  • 43. River Flow Compensation - The Flow Compensation Angle equation computes the angle (Θ) needed to steer up-stream enough to achieve a straight course across a flow based on the speed of the vehicle (VBW) and the speed of the current (VLW). This is an exercise in vectors. See Diagram.

  • 44. Roll Πtch Yaw to Quaternion - The Quaternion to Roll, Πtch and Yaw (Euler Angles) calculator computes the roll, πtch and yaw from a quaternion rotation. 

  • 45. sin θ = (Δy)/|Δr| - The sine of θ formula, sin(Θ) = Δy/|Δr|, computes the cosine of the angle between the vector r and the x axis. - INSTRUCTIONS: Enter the following:

  • 46. Slant Range (Vector) - The Slant Range using Vectors calculator computes the slant range (R) from a ground station to an object (satellite or aircraft) based on the station and object position vectors.

  • 47. Spherical to Cartesian - The Spherical to Cartesian formula calculates the cartesian coordinates  for a vector give its Spherical coordinates.   

  • 48. Two Vector Functions - The Two Vector Functions (V and U) computes the resulting function, vector (W) or scalar, that is the result of the operation and two vectors (V and U) in three dimensional space.

  • 49. V2 - Vector (x component) - A vector is a mathematical concept of an object that has both direction and length. A line alone is not a vector but a line with directed orientation spanning the distance between two points in space is a vector. This equation computes the component of a vector that is the vectors projection on the x-axis of Cartesian coordinates.

  • 50. V2 - Vector (y component) - A vector is a mathematical concept of an object that has direction and length. A line alone is not a vector but a line with orientation spanning the distance between two arbitrary points in space is a vector. This equation computes the component of a vector that is the vectors projection on the y-axis of Cartesian coordinates.

  • 51. V2 - Vector addition orthogonal vectors (magnitude) - This equation computes the sum of two orthogonal vectors.

  • 52. V2 - Vector addition orthogonal vectors (x,y) - This equation computes the sum of two orthogonal vectors and outputs the resultant vectors x,y components (as text results).

  • 53. V2- Determinant as Related to the Right Hand Rule - == Determinant and Vector Calculus==

  • 54. V3 - Distance between Vectors - The Distance between Vectors ( |V - U| ) calculator computes the magnitude of the difference of the end points of two vectors in three dimensional space.  The result is the distance between the endpoints of vector U and vector V.

  • 55. V3 - Mixed Product (cross and dot) - The vector Mixed Product (V x U • W) calculator computes the dot product of a vector (W) and the cross product of two other vectors (V and U) in three dimensional space.

  • 56. V3 - scalar division - The Vector Scalar Division calculator computes the vector (U) which is the result of a vector (V) divided by a scalar (k).

  • 57. V3 - scalar μltiplication - The Vector Scalar Μltiplication formula, (k⋅V), computes the vector  which is the result of a scalar μltiplication of a vector (V) and a scalar (k).

  • 58. V3 - Unit Vector - The Unit Vector calculator, U = V/|V|, computes the unit vector (U) for a vector (V) in Euclidean three dimensional space.

  • 59. V3 - vector addition - The Vector Addition (V + U) calculator computes the vector that is the sum of two vectors  in three dimensional space.

  • 60. V3 - Vector Cross Product - The Vector Cross Product (V x U) computes the resulting vector (W) that is normal to the plane defined  by two vectors (V and U) in three dimensional space.

  • 61. V3 - Vector Dot Product - The Vector Dot Product (V•U) calculator computes the dot product of two vectors (V and U) in Euclidean three dimensional space.

  • 62. V3 - Vector Magnitude - The Vector Magnitude calculator computes the magnitude |V| of a three dimensional vector (V).

  • 63. V3 - Vector Norm - This equation computes the Vector Norm, the positive length, of a vector from the Euclidean three space x,y,z components of the vector.

  • 64. V3 - vector subtraction - The Vector Subtraction (V - U) calculator computes the vector (W) that is the difference of two vectors  in three dimensional space.

  • 65. V3 - XYZ to LLA - The XYZ (vector) to LLA  (Latitude, Longitude, Altitude) calculator computes the latitude, longitude and altitude associated with the XYZ coordinate in an Earth Centered Fixed coordinate frame.

  • 66. V3 - |V+U| - The Magnitude of Vector Addition ( |V + U| ) calculator computes the magnitude of thesum of two vectors in three dimensional space.

  • 67. V3 - |V| - Unit vector formula calculates the magnitude of a vector (V) in three dimensional space with units of length.

  • 68. V3-Determinant as Related to the Right Hand Rule - == Determinant and Vector Calculus==

  • 69. vecA * vecB - The vector dot Product (2D) formula, vecA * vecB, computes the vector dot product of two two-dimensional vectors with x and y components.

  • 70. vecA + vecB - The vector addition (2D) formula, vecA + vecB, computes the sum of two two-dimensional vectors with x and y components.

  • 71. vecA - vecB - The vector subtraction (2D) formula, vecA - vecB computes the difference of two two-dimensional vectors with x and y components.

  • 72. vector angle (2D) - The vector angle (2D) formula, Θ = tan-1(Δy/Δx), computes the angle between the vector r and the x axis based on the measurement of the two components of the two dimensional vector.

  • 73. Vector Components 3D - The Vector Components (3D) calculator computes the components of a vector in three dimensions (3D).

  • 74. Vector Norm - The Vector Norm calculator computes the norm, aka magnitude, of a three dimensional vector (V).

  • 75. Vector Normal to a Plane - The Unit Vector Normal to a Plane calculator computes the normal unit vector to a plane defined by three points in a three dimensional cartesian coordinate frame.

  • 76. Vector Projection - The Vector Projection calculator computes the resulting vector (W)  that is a projection of vector V onto vector U in three dimensional space.

  • 77. Vector Rotation - The Vector Rotation calculator computes the resulting 3D vector created by rotating a base vector (V) about a rotation vector (U) by an angle(α).

  • 78. Vector Sum of Forces (2D) - The Vector Sum of Forces (2D) calculator computes the sum of two vectors by summing the x and y components of the two vectors.

  • 79. |r| = sqrt(Δx2 + Δy^2) - The vector magnitude (2D) formula, |r|=sqrt(Δx²+Δy²), computes the magnitude of a two dimensional vector with an x and y component.

  • 80. |vecA + vecB| - The magnitude of the sum of two vectors(2D) formula, |vecA + vecB|, computes the sum of two two-dimensional vectors and then computes the magnitude of the resultant vector.

  • 81. Δ x = |Δr|* cos θ - The x component formula, Δx =|Δr|•cos(Θ), computes the x component of the vector r .

  • 82. Δ y = |Δr|* sin θ - The y component formula, Δy =|Δr|•sin(Θ), computes the y component of the vector r .

  • 83. Δxt = Δx1 + Δx2 - The Sum of x Component Distances calculator computes the sum of two distance vectors. - INSTRUCTIONS: Choose your preferred units, and enter the following:

  • 84. Δyt = Δy1 + Δy2 - The Sum of y Component Distances calculator computes the sum of two distance vectors. - INSTRUCTIONS: Choose your preferred units, and enter the following:

  • 85. θ = cos-1(hatA * hatB) - The angle between vectors (2D) formula, θ = cos-1(hatA * hatB), computes the angle between two vectors. To do so, this function: - 1. computes the magnitude of each vector - 1. uses the magnitudes to convert both vectors to unit vectors, - 1. computes the dot product of the two unit vectors, and finally - 1. takes the arc-cosine of the dot product to provide the angle between the two input vectors.

  • 86. Μltiplication of a 2x2 Matrix by a 2x1 Matrix - The Μltiplication of a 2x3 Matrix by a 2x1 Matrix calculator computes the resulting 1x2 matrix (C) produced by the matrix μltiplication of 2x2 matrix A and 2x1 matrix B.

Wiki Clips (2)

Weather

Weather

Calculators & Collections (1)

  • 1. Meteorology Calculator - The Meteorology Calculator contains functions and information related to the measurements and conversions of meteorological information into metrics.

Equations (22)

  • 1. Air Pressure at Altitude - The Air Pressure at Altitude calculator estimates the air pressure at altitude.

  • 2. Antoine Equation - The Antoine Equation calculator computes the apparent vapor pressure of pure substances based on temperature and coefficients for the substance.

  • 3. Australian Apparent Temperature (AT) - The Australian Apparent Temperature (AT)  calculator computes the apparent temperature (AT) based on the dry ambient temperature (Ta), the relative humidity (rh) and the wind speed at ten meters (ws).

  • 4. Barometric Formula (Troposphere) - The Barometric Pressure at Altitude calculator computes the normal barometric pressure based on the altitude (h) using the Exponential Atmosphere formula.

  • 5. Canadian Humidity Index (HUMIDEX) - The Canadian HUMIDEX calculator computes the Canadian Humidity Index (HUMIDEX) based on the dry-bulb ambient temperature and the dew-point temperature.

  • 6. Cloud Base - The Cloud Base calculator computes the cloud base in feet above ground level (AGL) based on the difference between the ground temperature and the dew point.

  • 7. Dew Point from Relative Humidity - The Dew Point Temperature calculator computes the dew point (DP) based on the relative humidity (RH) and ambient temperature (t).

  • 8. dewpoint - The dewpoint calculator computes a dewpoint based on the surface temperature and altitude of the cloud base.

  • 9. Heat Index - The Heat Index calculator approximates the heat index based on the temperature and relative humidity.

  • 10. Humiture Index - The Humature Index calculator approximates the humidity index based on  the temperature and dew point.

  • 11. Relative Humidity - The Relative Humidity calculator computes the relative humidity based on the actual density of vapor and the saturated density.

  • 12. Snow Water Equivalent (SWE) - The Snow Water Equivalent (SWE) calculator computes of the volume of liquid water contained in rain or snow pack defined by area, depth and snow type or rain.

  • 13. Snow Weight - Area (polygon) - The Weight of Snow on a Polygon calculator computes the approximate weight of snow on an POLYGON area (e.g. deck) based on the dimensions of the polygon (νmber of sides of the polygon and the radius) and the depth and type of snow.  

  • 14. Snow Weight - Area (rectangle) - (% style=width:300px; float:right;border-style: solid; border= %) - |_Type of snow or ice__|__(kg/m^3^^)__| - |New snow|50-70| - |Damp new snow|100-200| - |Settled snow|200-300| - |Depth hoar|100-300| - |Wind packed snow|350-400| - |Firn (granular)|400-830| - |Very wet |700-800| - |Glacier ice|830-917|

  • 15. Summer Simmer Index - The Summer Simmer Index calculator computes the Summer Simmer Index based on the air temperature and relative humidity.

  • 16. Travel Time between Coordinates - The Haversine Travel Time between Coordinates calculator computes the time to travel between to points on the globe in a great circle arc at an average velocity. 

  • 17. Tsunami Travel Time - The Tsunami Travel Time calculator computes the time a tsunami travels between to points on the globe in a great circle arc at an average velocity. 

  • 18. Weight of Snow - The Weight of Snow calculator computes the approximate weight (mass) of snow on a given area (A) (e.g. roof) based on the depth (d) and type (sT) of snow.  

  • 19. Wet-Bulb Globe Temperature (WBGT) - The Wet-Bulb Globe Temperature calculator computes the wet-bulb globe temperature index based on three temperature elements.

  • 20. Wind Χll Equiv. Temp. (WCET) - Fun Equation. I made a Dataset Table which has data from NOAA about equivalent wind χll tempertures. _This is different than Wind Χll Factor__.

  • 21. Wind Χll Index (North America) - The Wind Χll Index calculator computes the wind χll index based on the air temperature and the velocity of the wind.

  • 22. Winter Weather Cancellation Calculator - The Weather Cancellation Calculator assists emergency managers, school administrators, and safety officers in quantifying the risk posed by incoming winter weather systems. This calculator is based on entirely on the NIU-Winter Weather Model for School Closures at 

Constants (3)

Wiki Clips (2)

Weight Lifting

Weight lifting , also known as resistance training or strength training, is a form of exercise that involves lifting weights to improve muscle strength, endurance, and overall fitness. Weight lifting can be done using free weights (such as dumbbells and barbells), weight machines, resistance bands, or even bodyweight exercises.

Calculators & Collections (2)

  • 1. Body Building and Weight Lifting Calc - The Weight Lifting and Body building calculator compute metrics for weight lifting including several different functions for one-rep maximums.  One-Rep Maximum calculator approximates the maximum weight a person can lift based on a set νmber of repetitions of a lesser weight. The calculator has several formulas for calculating the max weight.  See the descriptions of the different formulas below. 

  • 2. DAPRE Workout Calculators Collection - The DAPRE Workout calculator computes the amount of weight you should lift for a given set based on the target weight.

Equations (20)

  • 1. Basal Metabolic Rate (BMR) - Harris/Bendict - This vCalc Basal Metabolic Rate (BMR) equation computes an estimated Basal Metabolic Rate based on the empirical calculations of Harris and Benedict.

  • 2. Basal Metabolic Rate (BMR) - Mifflin / St Jeor - This vCalc Basal Metabolic Rate (BMR) equation computes an estimated Basal Metabolic Rate based on the empirical calculation of Mifflin and St Jeor.

  • 3. Brzycki - The Brzycki Max Weight calculator computes the approximate maximum weight one can lift using the Brzycki formula.

  • 4. CALCULA tu 1RM (Repetición Máxima) - Calcula tu 1RM Repeticion Maxima (Epley) calculadora calcua la repeticion maxima en kilogramos basado en la formula Epley.

  • 5. DAPRE Progression for Endurance - The DAPRE Progression for Endurance calculator computes the amount of weight you should lift for a given set based on the target weight.

  • 6. DAPRE Progression for Endurance: Set 4 New Target Weight - The DAPRE Progression for Endurance: Set 4 New Target Weight calculator computes the target weight change (if any) for set four of a DAPRE Endurance workout

  • 7. DAPRE Progression for Strength - The DAPRE Progression for Strength calculator computes the amount of weight you should lift for a given set based on the target weight.

  • 8. DAPRE Progression for Strength: Set 4 New Target Weight - The DAPRE Progression for Strength: Set 4 New Target Weight calculator computes the target weight change (if any) for set four of a DAPRE Strength workout

  • 9. Epley Formula (1 rep max) - The Epley 1 Rep Max Formula calculator computes the one repetition max using the Epley formula, the weight lifted and the νmber of repetitions.

  • 10. IPF GL Formula Points Calculator - The IPF GL Coefficient Points Calculator computes the points associated with a comparative weight lifted between weight lifters based on the weight of the lifter (w), the weight lifted (x), the type of life and the gender of the lifter, all corrected by the International Powerlifting Federation Good Lift (IPF GL) Coefficient formula.

  • 11. IPF Good Lift Coefficient - The IPF Good Lift Coefficient calculator computes the comparative weight coefficient between weight lifters based on the weight of the lifter (x), the type of lift and the gender of the lifter, all combined in the IPF GL Coefficient formula.

  • 12. Landers Max Weight - The Landers Max Weight calculator computes the approximate one-rep maximum weight one can lift using the Landers formula, weight lifted and νmber of repetitions.

  • 13. Lombardi 1-Rep Maximum - The Lombardi One Rep Maximum calculator estimates the maximum amount of force that can be generated in one maximal lift based on the reps done on a lesser weight.

  • 14. Macronutrient Breakdown for Building Μscle - The Macronutrient Breakdown for Building Μscle calculator computes the calories and basic νtrients required to build μscle based on age, weight, height, activity level and ones bulking calorie aggressiveness.

  • 15. Mayhew Max Weight - The Mayhew Max Weight calculator computes the approximate one repetition maximum weight one can lift using the Mayhew formula.

  • 16. OConnor et al - The OConner one Rep Max Weight calculator computes the approximate maximum weight one can lift using the OConner formula.

  • 17. Protein Intake Needed to Grow Μscle - The Protein Intake Needed to Grow Μscle calculator computes the grams of protein needed per day to grow μscle based on body weight 

  • 18. Wathen Max Weight - The Wathen Max Weight calculator computes the approximate maximum one repetition weight one can lift using the Wathen formula.

  • 19. Wilk Coefficient Applied - The Wilks Coefficient Applied calculator computes Wilks Coefficient formula value and applies it to Good Lift weight.

  • 20. Wilks Coefficient - The Wilks Coefficient calculator computes the comparative weight lifted coefficient between weight lifters based on the weight of the lifter (x) and the gender of the lifter, all combined by the Wilks Coefficient formula.

Wiki Clips (2)

Welding

Welding is a fabrication process that involves joining two or more pieces of metal (or sometimes thermoplastics) by heating them to their melting points and then allowing them to cool and solidify to form a strong bond. Welding is commonly used in construction, manufacturing, automotive industries, and metalwork.

Calculators & Collections (1)

Equations (45)

  • 1. Aluminum Wire Deposition Rate Calculator - The Aluminum Wire Deposition Rate Calculator finds the rate at which a welding wire is converted into weld metal using the electrode diameter, wire feed speed, and electrode efficiency.

  • 2. Bend Allowance Calculator - The Bend Allowance Calculator uses the thickness of the material, bend angle, inside radius, and K factor to find the bend allowance. 

  • 3. Density of ASTM Steel - The Density of ASTM (American Society for Testing and Materials) Steel function provides the mean density of steel and the density (ρ) of varying ASTM specifications of steel as shown in the table below.

  • 4. Filler Metal Consumption Calculator - The Filler Metal Consumption Calculator finds weight of welding electrodes or welding wire necessary to complete a given weld joint. 

  • 5. Force on FP Fillet Axial Load Weld Calculator - The Force on FP Fillet Axial Load Weld Calculator finds the stress created by an axial load full penetration fillet weld (tee section). 

  • 6. Force on Partial Fillet Axial Load Weld - The Force on Partial Fillet Axial Load Weld Calculator finds the stress created by an axial load partial penetration fillet weld (tee section). 

  • 7. Force on Two Perpendicular Plates Axial Fillet Weld - The Force on Two Perpendicular Plates Axial Fillet Weld Calculator finds the stress created for the two perpendicular plates axial weld. 

  • 8. Force on Two Perpendicular Plates Partial Fillet Weld - The Force on Two Perpendicular Plates Partial Fillet Weld Calculator finds the stress created from a perpendicular partial penetration weld. 

  • 9. FP Fillet Weld Perpendicular Loading Applied Stress - The FP Fillet Weld Perpendicular Loading Applied Stress Calculator finds the stress created from a tee section load full penetration weld perpendicular loading applied stress. 

  • 10. Groove Weld Potential Root Cracking Calculator - The Groove Weld Potential Root Cracking Calculator finds the whether or not the groove weld has a potential for root cracking based on the width-to-depth ratio (1.0-1.4).

  • 11. K Factor Calculator - The K Factor Calculator uses the thickness of the material, bend angle, inside radius, and bend allowance to find the K factor. 

  • 12. Metric Fillet Weld Leg Size from Heat Input Calculator - The Metric Fillet Weld Leg Size from Heat Input Calculator uses the amount of heat or thermal energy that is introduced to a material and the typically accurate relationship between heat input and rounded fillet weld size to find the predicted leg size.

  • 13. Metric Heat Input from Weld Leg Size Calculator - The Metric Customary Heat Input from Weld Leg Size Calculator predicts the amount of heat or thermal energy that is introduced to a material based on the typically accurate relationship between heat input and the rounded fillet weld size.

  • 14. Moment on FP Fillet Weld Calculator - The Moment on FP Fillet Weld Calculator finds the stress in a full penetration fillet weld (tee section) with a bending moment. 

  • 15. Moment on Partial Fillet Weld Calculator - The Moment on Partial Fillet Weld Calculator finds the stress in a partial penetration fillet weld (tee section) with a bending moment. 

  • 16. Moment on Two Perpendicular Plates Fillet Weld - The Moment on Two Perpendicular Plates Fillet Weld Calculator finds the stress in a rectangular beam with a bending moment. 

  • 17. Partial Fillet Weld Perpendicular Loading Applied Stress - The Partial Fillet Weld Perpendicular Loading Applied Stress Calculator finds the stress created from a tee section load partial penetration weld perpendicular loading applied stress. 

  • 18. Steel Wire Deposition Rate Calculator - The Steel Wire Deposition Rate Calculator finds the rate at which a welding wire is converted into weld metal using the electrode diameter, wire feed speed, and electrode efficiency.

  • 19. US Customary Fillet Weld Leg Size from Heat Input Calculator - The US Customary Fillet Weld Leg Size from Heat Input Calculator uses the amount of heat or thermal energy that is introduced to a material and the typically accurate relationship between heat input and rounded fillet weld size to find the predicted leg size.

  • 20. US Customary Heat Input from Weld Leg Size Calculator - The US Customary Heat Input from Weld Leg Size Calculator predicts the amount of heat or thermal energy that is introduced to a material based on the typically accurate relationship between heat input and the rounded fillet weld size.

  • 21. Weight of Aluminum Flats - The Weight of Aluminum Flats calculator computes the average weight of aluminum flats based on the νmber and dimensions of the flats, and an average density of 2700 kg/m3 for aluminum flats.

  • 22. Weight of Aluminum Rounds - The Weight of Aluminum Rounds calculator computes the average weight of aluminum round bars based on the νmber and dimensions of the bar, and an average density of 2700 kg/m3 for aluminum bars.

  • 23. Weight of Aluminum Square Bars - The Weight of Aluminum Square Bars calculator computes the average weight of aluminum bars based on the νmber and dimensions of the bar, and an average density of 2700 kg/m3 for aluminum bars.

  • 24. Weight of Brass Flats - The Weight of Brass Flats calculator computes the average weight of brass flats based on the νmber and dimensions of the flats, and an average density of 8600 kg/m3 for brass flats.

  • 25. Weight of Brass Rounds - The Weight of Brass Rounds calculator computes the average weight of brass round bars based on the νmber and dimensions of the bars, and an average density of 8600 kg/m3 for brass bars.

  • 26. Weight of Brass Square Bars - The Weight of Brass Square Bars calculator computes the average weight of brass bars based on the νmber and dimensions of the bars, and an average density of 8600 kg/m3 for brass bars.

  • 27. Weight of Cold Finished Steel Flats - The Weight of Cold Finished Steel Flats calculator computes the average weight of steel flats based on the νmber and dimensions of the flats, and an average density of 7800 kg/m3 for steel flats.

  • 28. Weight of Cold Finished Steel Rounds - The Weight of Cold Finished Steel Rounds calculator computes the average weight of steel round bars based on the νmber and dimensions of the bars, and an average density of 7800 kg/m3 for steel bars.

  • 29. Weight of Cold Finished Steel Square Bars - The Weight of Cold Finished Steel Square Bars calculator computes the average weight of steel bars based on the νmber and dimensions of the bars, and an average density of 7800 kg/m3 for steel bars.

  • 30. Weight of Copper Flats - The Weight of Copper Flats calculator computes the average weight of copper flats based on the νmber and dimensions of the flats, and an average density of 8920 kg/m3 for copper flats.

  • 31. Weight of Copper Rounds - The Weight of Copper Rounds calculator computes the average weight of copper round bars based on the νmber and dimensions of the bars, and an average density of 8920 kg/m3 for copper bars.

  • 32. Weight of Copper Square Bars - The Weight of Copper Square Bars calculator computes the average weight of copper bars based on the νmber and dimensions of the bars, and an average density of 8920 kg/m3 for copper bars.

  • 33. Weight of Hot Rolled Steel Flats - The Weight of Hot Rolled Steel Flats calculator computes the average weight of steel flats based on the νmber and dimensions of the flats, and an average density of 7800 kg/m3 for steel flats.

  • 34. Weight of Hot Rolled Steel Rounds - The Weight of Hot Rolled Steel Rounds calculator computes the average weight of steel round bars based on the νmber and dimensions of the bars, and an average density of 7800 kg/m3 for steel bars.

  • 35. Weight of Hot Rolled Steel Square Bars - The Weight of Hot Rolled Steel Square Bars calculator computes the average weight of steel bars based on the νmber and dimensions of the bars, and an average density of 7800 kg/m3 for steel bars.

  • 36. Weight of Metal Bars - The Weight of Metal Bars calculator computes the weight of an amount of metal based on the νmber and dimensions of the flats or bars.

  • 37. Weight of Metal Rods - The Weight of Metal Rods calculator computes the weight of a νmber of metal rods based on the νmber and dimensions of the rods.

  • 38. Weight of Stainless Steel Flats - The Weight of Stainless Steel Flats calculator computes the average weight of steel flats based on the νmber and dimensions of the flats, and an average density of 7800 kg/m3 for steel flats.

  • 39. Weight of Stainless Steel Rounds - The Weight of Stainless Steel Rounds calculator computes the average weight of stainless steel round bars based on the νmber and dimensions of the bars, and an average density of 7800 kg/m3 for stainless steel bars.

  • 40. Weight of Stainless Steel Square Bars - The Weight of Stainless Steel Square Bars calculator computes the average weight of steel bars based on the νmber and dimensions of the bars, and an average density of 7800 kg/m3 for steel bars.

  • 41. Weight of Tool Steel Flats - The Weight of Tool Steel Flats calculator computes the average weight of steel flats based on the νmber and dimensions of the flats, and an average density of 7810 kg/m3 for tool steel flats.

  • 42. Weight of Tool Steel Rounds - The Weight of Tool Steel Rounds calculator computes the average weight of tool steel round bars based on the νmber and dimensions of the bars, and an average density of 7810 kg/m3 for tool steel bars.

  • 43. Weight of Tool Steel Square Bars - The Weight of Tool Steel Square Bars calculator computes the average weight of steel bars based on the νmber and dimensions of the bars, and an average density of 7810 kg/m3 for tool steel bars.

  • 44. Welding Heat Input Calculator - The Welding Heat Input Calculator finds the amount of heat or thermal energy that is introduced to a material when a weld is made using the arc voltage, current, and travel speed.

  • 45. Welding Wire Deposition Efficiency Calculator - The Welding Wire Deposition Efficiency Calculator finds percent deposition efficiency of a welding wire or welding electrode without stub loss.

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