Energy Conversion Calculator

Energy Conversion Calculator

An energy converter calculator. Select the units you wish to use and enter the value in the input units in the first text box. The result will be displayed in the second text box.

Convert energy measurements between: Btu (th), Btu (mean), calories (IT), calories (th), calories (mean), calories (15C), calories (20C), calories (food), centigrade heat units, electron volts, ergs, foot-pound force, foot poundals, gigajoules, horsepower hours, inch-pound force, joules, kilocalories (IT), kilocalories (th), kilogram-force meters, kilojoules, kilowatt hours, megajoules, newton meters, therms, watt seconds, watt hours

Joules to kJ conversion

Joules to BTU conversion

Joules to Calories conversion

Joules to kcal conversion

Joules to kWh conversion

Joules to eV conversion

kJ to Joules conversion

kJ to BTU conversion

kJ to calories conversion

kJ to kcal conversion

BTU to kJ conversion

BTU to Joules conversion

BTU to kWh conversion

kWh to BTU conversion

kWh to Joules conversion

Calories to Joules conversion

Calories to kJ conversion

Calories to kcal conversion

kcal to calories conversion

kcal to joules conversion

kcal to kJ conversion

eV to joules conversion

eV to keV conversion

eV to MeV conversion

eV to GeV conversion

keV to eV conversion

MeV to eV conversion

GeV to eV conversion

The SI unit of energy rate (energy per unit time) is the watt, which is a joule per second. Thus, one joule is one watt-second, and 3600 joules equal one watt-hour. The CGS energy unit is the erg and the imperial and US customary unit is the foot pound. Other energy units such as the electronvolt, food calorie or thermodynamic kcal (based on the temperature change of water in a heating process), and BTU are used in specific areas of science and commerce.