Joules to Kilowatt-hours
Convert J to kWh. 1 joule = 0.000000277778 kWh, and 1 kilowatt-hour = 3,600,000 J.
Formula Divide the value in joules by 3,600,000. Joules to Kilowatt-hours table
1 joule in every unit
| Kilojoules | 0.001 | kJ |
|---|---|---|
| Megajoules | 0.000001 | MJ |
| Calories | 0.239005736138 | cal |
| Kilocalories | 0.000239005736 | kcal |
| Watt-hours | 0.000277777778 | Wh |
| Kilowatt-hours | 0.000000277778 | kWh |
| British thermal units | 0.00094781712 | BTU |
| Foot-pounds | 0.737562149277 | ft·lbf |
| Electronvolts | 6.241509e+18 | eV |
Food labels write kilocalories (kcal) as "Calories". Calories here are thermochemical: 1 cal = 4.184 J.
How to convert joules to kilowatt-hours
Divide the value in joules by 3,600,000.
For example, 10 J = 0.000002777778 kWh, and 10 kWh = 36,000,000 J.
Frequently asked questions
How many kilowatt-hours are in one joule?
1 joule = 0.000000277778 kWh.
What is 10 J in kWh?
10 J = 0.000002777778 kWh.
How do I convert kWh back to J?
Multiply the value in kilowatt-hours by 3,600,000. 1 kilowatt-hour = 3,600,000 J.
Joules to Kilowatt-hours table
| Joules (J) | Kilowatt-hours (kWh) |
|---|---|
| 0.1 | 2.777778e-8 |
| 0.5 | 0.000000138889 |
| 1 | 0.000000277778 |
| 2 | 0.000000555556 |
| 3 | 0.000000833333 |
| 4 | 0.000001111111 |
| 5 | 0.000001388889 |
| 6 | 0.000001666667 |
| 7 | 0.000001944444 |
| 8 | 0.000002222222 |
| 9 | 0.0000025 |
| 10 | 0.000002777778 |
| 15 | 0.000004166667 |
| 20 | 0.000005555556 |
| 25 | 0.000006944444 |
| 30 | 0.000008333333 |
| 50 | 0.000013888889 |
| 75 | 0.000020833333 |
| 100 | 0.000027777778 |
| 250 | 0.000069444444 |
| 500 | 0.000138888889 |
| 1,000 | 0.000277777778 |
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