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Energy Converter

Joules, kilowatt-hours, calories, BTU, watt-hours, and foot-pounds for electricity, heat, food, and mechanical work.

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3,412.14 BTU (IT)1 kWh = 3,412.14 BTU (IT)

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Reference

Energy factors from NIST SI conversion tables, using the joule as the shared reference unit.

Coverage

10 units and 14 focused conversion pages in this category.

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Popular energy conversions

Electricity & heat6 converters
kWh to BTU (IT)1 kWh = 3,412.14 BTU (IT)BTU (IT) to kWh1 BTU (IT) = 0.000293 kWhkWh to joules1 kWh = 3,600,000 Jjoules to kWh1 J = 2.77778e-7 kWhWh to joules1 Wh = 3,600 JMJ to kWh1 MJ = 0.27778 kWh
Food & science7 converters
kcal to kJ1 kcal = 4.184 kJkJ to kcal1 kJ = 0.23901 kcalthermochemical calories to joules1 cal = 4.184 Jjoules to thermochemical calories1 J = 0.23901 caljoules to kJ1 J = 0.001 kJkJ to joules1 kJ = 1,000 JeV to joules1 eV = 1.60218e-19 J
Mechanical work1 converters
foot-pounds to joules1 ft lb = 1.3558 J

Units included

UnitSymbolValue in joule
electronvolteV1.602177e-19
jouleJ1
kilojoulekJ1,000
megajouleMJ1,000,000
watt-hourWh3,600
kilowatt-hourkWh3,600,000
thermochemical caloriecal4.184
thermochemical kilocaloriekcal4,184
International Table British thermal unitBTU (IT)1,055.05585262
foot-poundft lb1.355817948331