Watt-hours to Kilojoules Converter
1 Watt-hour = 3.6 Kilojoules
Wh
kJ
1 Wh = 3.6 kJ. To convert watt-hours to kilojoules, multiply by 3.6; to convert back, multiply by 0.277778.
Conversion formula
1 Wh = 3.6 kJ
To convert from Watt-hours to Kilojoules, multiply the value in watt-hours by 3.6.
| Watt-hours (Wh) | Kilojoules (kJ) |
|---|---|
| 0.001 | 0.0036 |
| 0.01 | 0.036 |
| 0.1 | 0.36 |
| 1 | 3.6 |
| 2 | 7.2 |
| 5 | 18 |
| 10 | 36 |
| 25 | 90 |
| 50 | 180 |
| 100 | 360 |
| 250 | 900 |
| 500 | 1,800 |
| 1000 | 3,600 |
1 watt-hour in every energy unit
| Joules | 3,600 J |
| Kilojoules | 3.6 kJ |
| Megajoules | 0.0036 MJ |
| Calories | 860.421 cal |
| Kilocalories | 0.860421 kcal |
| Kilowatt-hours | 0.001 kWh |
| British Thermal Units | 3.41214 BTU |
Frequently Asked Questions
How many kilojoules are in 1 watt-hour?
1 watt-hour equals 3.6 kilojoules. So 10 watt-hours are 36 kilojoules and 100 watt-hours are 360 kilojoules.
How do I convert watt-hours to kilojoules by hand?
Multiply the number of watt-hours by 3.6. To go the other way, multiply kilojoules by 0.277778 (or divide by 3.6).
How many watt-hours are in 1 kilojoule?
1 kilojoule equals 0.277778 watt-hours.