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Energy Converter
Convert between joules, calories, BTU, and kilowatt-hours.
From
J — Joule
kJ — Kilojoule
cal — Calorie
kcal — Kilocalorie
BTU — BTU
Wh — Watt-hour
kWh — Kilowatt-hour
To
4.184
J — Joule
kJ — Kilojoule
cal — Calorie
kcal — Kilocalorie
BTU — BTU
Wh — Watt-hour
kWh — Kilowatt-hour
1
kcal
=
4.184
kJ
Convert to all units
Quick conversions
1 kcal → kJ
1 kWh → BTU
2000 kcal → kJ
1 BTU → J