Watt-hours to Kilojoules Converter
How to convert watt-hours to kilojoules
kilojoules = watt-hours × 3.6
To convert watt-hours to kilojoules, multiply the number of watt-hours by 3.6.
1 Wh = 3.6 kJ
Examples
- The usual airline limit for a lithium battery in carry-on baggage: 100 Wh × 3.6 = 360 kJ
- 1,000 Wh × 3.6 = 3,600 kJ
Watt-hours to kilojoules 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 |
| 20 Wh | 72 kJ |
| 50 Wh | 180 kJ |
| 100 Wh | 360 kJ |
| 200 Wh | 720 kJ |
| 250 Wh | 900 kJ |
| 500 Wh | 1,800 kJ |
| 1,000 Wh | 3,600 kJ |
| 2,000 Wh | 7,200 kJ |
| 2,500 Wh | 9,000 kJ |
| 5,000 Wh | 18,000 kJ |
| 10,000 Wh | 36,000 kJ |
Unit definitions
- Watt-hour (Wh)
- A watt-hour is the energy used by a 1 watt load running for one hour, exactly 3600 joules. It is used for battery capacities.
- Kilojoule (kJ)
- A kilojoule is 1000 joules. It is the unit for food energy on nutrition labels in Australia, New Zealand and, alongside kilocalories, the European Union.