This tool will calculate any parameter from the formula for Einstein’s mass-energy equivalence E = m·c²

# Energy & Power Calculators

Online web tools for energy and power conversions and calculations

## Force & Velocity to Power Calculator

Use this calculator to determine the power in watt, kilowatt or horsepower units, produced by a moving object with a specified applied force and velocity P = F · v

## Work Done & Distance Moved to Applied Force Calculator

Use this calculator to determine the force applied to an object to use a specified amount of energy or do work to move an object over a defined distance F = W/d

## Force Applied & Distance Moved to Work Done Calculator

Use this calculator to determine the work done to move an object with a specific amount of applied force over a defined distance W = F·d

## Power & Elapsed Time to Work Done Calculator

Use this calculator to determine the work done from the power output and the time taken W = P·t

## Work Done & Elapsed Time to Power Calculator

Use this calculator to determine the power from the total energy transferred or work done for a given period of time P = W/t

## Mass & Velocity to Kinetic Energy Calculator

Use this calculator to determine the kinetic energy of moving object, or the work necessary to accelerate an object from rest, or decelerate a moving object to rest, with a specified mass and velocity KE = ½·m·v²

## Wavelength to Photon Energy Calculator for Electromagnetic Waves in a Vacuum

Calculate the energy per photon of an electromagnetic wave by entering a value for the corresponding wavelength E = h·c₀/λ

## Frequency to Photon Energy Calculator for Electromagnetic Waves

Calculate the energy per photon of an electromagnetic wave in by entering a value for the corresponding em wave frequency E = h·f

## Power Converter

This power units conversion tool allows you to convert power values to the equivalent power in other measurement units.

## Total Distance & Electric Vehicle Consumption to Estimated Total Battery Energy Usage Calculator

This battery energy usage calculator will take the total distance you want to travel and the consumption for the battery powered electric vehicle (EV, BEV) to be used, and estimate the battery energy required to complete the journey.

## Battery Energy Used & Distance Travelled to Electric Vehicle Consumption Calculator

This electric vehicle consumption calculator will take the battery electrical energy consumed and the distance travelled by a battery powered electric vehicle (EV, BEV), and determine the average fuel consumption performance for that journey.

## Total Distance & Electric Vehicle Economy to Estimated Total Battery Energy Usage Calculator

This battery energy usage calculator will take the total distance you want to travel and the economy for the battery powered electric vehicle (EV, BEV) to be used, and estimate the battery energy required to complete the journey.

## Energy Converter

This energy units conversion tool allows you to convert energy values to the equivalent energy in other measurement units.