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.