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Energy Converter

Convert between 7 different energy units instantly. Free, accurate, and easy to use.

Open Energy Converter

Available Energy Units

Joule
j
Kilojoule
kj
Calorie
cal
Kilocalorie
kcal
Watt-hour
wh
Kilowatt-hour
kwh
BTU
btu

Popular Energy Conversions

Joule → Kilojoule
j to kj
Joule → Calorie
j to cal
Joule → Kilocalorie
j to kcal
Joule → Watt-hour
j to wh
Joule → Kilowatt-hour
j to kwh
Joule → BTU
j to btu

Other Unit Categories

📏
Length
⚖️
Weight
📐
Area
🪣
Volume
🌡️
Temperature
⏰
Time
💨
Speed
🔧
Pressure
💾
Digital
🔌
Power
📐
Angle
🔬
Scientific
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