Energy Conversions

Convert between units of energy for physics, nutrition, and electrical applications. Choose from 72 unit-to-unit conversions below.

Convert from Joules (J)

Joules → Kilojoules Joules → Calories Joules → Kilocalories Joules → Watt-Hours Joules → Kilowatt-Hours Joules → Electron Volts Joules → BTU Joules → Foot-Pounds

Convert from Kilojoules (kJ)

Kilojoules → Joules Kilojoules → Calories Kilojoules → Kilocalories Kilojoules → Watt-Hours Kilojoules → Kilowatt-Hours Kilojoules → Electron Volts Kilojoules → BTU Kilojoules → Foot-Pounds

Convert from Calories (cal)

Calories → Joules Calories → Kilojoules Calories → Kilocalories Calories → Watt-Hours Calories → Kilowatt-Hours Calories → Electron Volts Calories → BTU Calories → Foot-Pounds

Convert from Kilocalories (kcal)

Kilocalories → Joules Kilocalories → Kilojoules Kilocalories → Calories Kilocalories → Watt-Hours Kilocalories → Kilowatt-Hours Kilocalories → Electron Volts Kilocalories → BTU Kilocalories → Foot-Pounds

Convert from Watt-Hours (Wh)

Watt-Hours → Joules Watt-Hours → Kilojoules Watt-Hours → Calories Watt-Hours → Kilocalories Watt-Hours → Kilowatt-Hours Watt-Hours → Electron Volts Watt-Hours → BTU Watt-Hours → Foot-Pounds

Convert from Kilowatt-Hours (kWh)

Kilowatt-Hours → Joules Kilowatt-Hours → Kilojoules Kilowatt-Hours → Calories Kilowatt-Hours → Kilocalories Kilowatt-Hours → Watt-Hours Kilowatt-Hours → Electron Volts Kilowatt-Hours → BTU Kilowatt-Hours → Foot-Pounds

Convert from Electron Volts (eV)

Electron Volts → Joules Electron Volts → Kilojoules Electron Volts → Calories Electron Volts → Kilocalories Electron Volts → Watt-Hours Electron Volts → Kilowatt-Hours Electron Volts → BTU Electron Volts → Foot-Pounds

Convert from BTU (BTU)

BTU → Joules BTU → Kilojoules BTU → Calories BTU → Kilocalories BTU → Watt-Hours BTU → Kilowatt-Hours BTU → Electron Volts BTU → Foot-Pounds

Convert from Foot-Pounds (ft·lbf)

Foot-Pounds → Joules Foot-Pounds → Kilojoules Foot-Pounds → Calories Foot-Pounds → Kilocalories Foot-Pounds → Watt-Hours Foot-Pounds → Kilowatt-Hours Foot-Pounds → Electron Volts Foot-Pounds → BTU

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