Energy converter
Convert joules, watt-hours, kilowatt-hours, calories, BTU and electronvolts.
J
kJ
MJ
Wh
kWh
cal
kcal
BTU
ft·lbf
eV
How it works
Energy is power multiplied by time: a 1 kW load running for one hour uses 1 kWh = 3.6 MJ.
Formulas
- 1 Wh = 3600 J
- 1 kcal = 4184 J
- 1 BTU ≈ 1055.06 J
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