Kilojoule to Kilowatt-hour
Convert kJ to kWh instantly — free, no sign-up.
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About the Kilojoule (kJ)
The Kilojoule is equal to 1,000 joules, the unit used on nutrition labels in most countries outside the US alongside (or instead of) Calories.
About the Kilowatt-hour (kWh)
The Kilowatt-hour is equal to 1,000 watt-hours, the standard unit electric utilities bill you in and the unit used for EV battery capacity and home solar production.
How to convert kJ to kWh
- Enter the value in kJ in the box above.
- The kWh equivalent updates instantly.
- Use the swap button to convert kWh back to kJ just as easily.