Energy Conversions

To convert energy unit from one to another, enter a value in the input field and choose your converter below.

Unit of Energy

UnitSymbolRelative to SI unit
Joule (SI unit)J1
KilojoulekJ0.001
Gram caloriecalIT4.1868
Kilocaloriekcal4,186.8
Watt hourW·h3,600
Kilowatt hourkW·h,B.O.T.U.3,600,000
ElectronvolteV1.602176 × 10 -19
British thermal unitBTUIT1,055.055852
US thermUS therm105,480,400
Foot-pound forceft lbf1.355817
Inch-pound forcein lbf0.112984

Convert from Joule

Convert from Kilojoule

Convert from Gram calorie

Convert from Kilocalorie

Convert from Watt hour

Convert from Kilowatt hour

Convert from Electronvolt

Convert from British thermal unit

Convert from US therm

Convert from Foot-pound force

Convert from Inch-pound force