ACCURATE CONVERSION
Joules to Kilowatt-hours Converter
Convert joules (J) to kilowatt-hours (kWh) with a standards-based formula.
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To
How to convert joules to kilowatt-hours
Enter a value in the converter above. The result updates immediately using the relationship below.
FORMULA1 joule = 0.00000028 kilowatt-hours
Joules to Kilowatt-hours conversion table
| Joules (J) | Kilowatt-hours (kWh) |
|---|---|
| 1 | 0.00000028 |
| 5 | 0.00000139 |
| 10 | 0.00000278 |
| 20 | 0.00000556 |
| 50 | 0.00001389 |
| 100 | 0.00002778 |
Common values
For a quick estimate, multiply by the factor above. Use more decimal places when technical work requires additional precision.
Frequently asked questions
How many kilowatt-hours are in one joule?
One joule equals 0.00000028 kilowatt-hours.
How do you convert joules to kilowatt-hours?
Multiply the joule value by 0.00000028.
Can I convert kilowatt-hours back to joules?
Yes. One kilowatt-hour equals 3,600,000 joules; you can also use the swap button.