watt-hours to kilojoules
Convert watt-hour to kilojoule — instant, free, with the formula shown.
1 Wh=3.6 kJ
How to convert watt-hour to kilojoule
To convert watt-hour to kilojoule, multiply by 3.6:
kJ = Wh × 3.6
For example, 10 Wh × 3.6 = 36 kJ.
Wh to kJ conversion table
| watt-hours (Wh) | kilojoules (kJ) |
|---|---|
| 1 Wh | 3.6 kJ |
| 2 Wh | 7.2 kJ |
| 5 Wh | 18 kJ |
| 10 Wh | 36 kJ |
| 25 Wh | 90 kJ |
| 50 Wh | 180 kJ |
| 100 Wh | 360 kJ |
| 250 Wh | 900 kJ |
| 500 Wh | 1800 kJ |
| 1000 Wh | 3600 kJ |
Other watt-hour conversions
Convert to kilojoule from another unit
Wh to kJ — frequently asked
How many kilojoules are in 1 watt-hour?
1 watt-hour = 3.6 kilojoules (Wh × 3.6 = kJ).
What is the formula to convert watt-hour to kilojoule?
Multiply your watt-hour value by 3.6 to get kilojoule.
How do I convert 10 watt-hours to kilojoules?
10 Wh = 36 kJ. For 100 Wh the answer is 360 kJ. Use the calculator on this page for any other value.