Kilojoules to Watt-hours
Convert kJ to Wh. 1 kilojoule = 0.277777777778 Wh, and 1 watt-hour = 3.6 kJ.
Formula Divide the value in kilojoules by 3.6. Kilojoules to Watt-hours table
1 kilojoule in every unit
| Joules | 1,000 | J |
|---|---|---|
| Megajoules | 0.001 | MJ |
| Calories | 239.005736138 | cal |
| Kilocalories | 0.239005736138 | kcal |
| Watt-hours | 0.277777777778 | Wh |
| Kilowatt-hours | 0.000277777778 | kWh |
| British thermal units | 0.947817120313 | BTU |
| Foot-pounds | 737.562149277 | ft·lbf |
| Electronvolts | 6.241509e+21 | eV |
Food labels write kilocalories (kcal) as "Calories". Calories here are thermochemical: 1 cal = 4.184 J.
How to convert kilojoules to watt-hours
Divide the value in kilojoules by 3.6.
For example, 10 kJ = 2.77777777778 Wh, and 10 Wh = 36 kJ.
Frequently asked questions
How many watt-hours are in one kilojoule?
1 kilojoule = 0.277777777778 Wh.
What is 10 kJ in Wh?
10 kJ = 2.77777777778 Wh.
How do I convert Wh back to kJ?
Multiply the value in watt-hours by 3.6. 1 watt-hour = 3.6 kJ.
Kilojoules to Watt-hours table
| Kilojoules (kJ) | Watt-hours (Wh) |
|---|---|
| 0.1 | 0.027777777778 |
| 0.5 | 0.138888888889 |
| 1 | 0.277777777778 |
| 2 | 0.555555555556 |
| 3 | 0.833333333333 |
| 4 | 1.11111111111 |
| 5 | 1.38888888889 |
| 6 | 1.66666666667 |
| 7 | 1.94444444444 |
| 8 | 2.22222222222 |
| 9 | 2.5 |
| 10 | 2.77777777778 |
| 15 | 4.16666666667 |
| 20 | 5.55555555556 |
| 25 | 6.94444444444 |
| 30 | 8.33333333333 |
| 50 | 13.8888888889 |
| 75 | 20.8333333333 |
| 100 | 27.7777777778 |
| 250 | 69.4444444444 |
| 500 | 138.888888889 |
| 1,000 | 277.777777778 |
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