Energy Conversions

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

Units of Energy

UnitSymbolRelative to SI unit
Joules (SI unit)J1
Grams caloriecalIT4.1868
Watts hourW·h3,600
Kilowatts hourkW·h,B.O.T.U.3,600,000
ElectronvoltseV1.602177 × 10-19
British thermal unitBTUIT1,055.055853
US thermUS therm105,480,400
Foot-pound forceft lbf1.355818
Inch-pound forcein lbf0.112985

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Convert from Watts hour

Convert from Kilowatts hour

Convert from Electronvolts

Convert from British thermal unit

Convert from US therm

Convert from Foot-pound force

Convert from Inch-pound force