ACCURATE CONVERSION
Kilowatt-hours to Joules Converter
Convert kilowatt-hours (kWh) to joules (J) with a standards-based formula.
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How to convert kilowatt-hours to joules
Enter a value in the converter above. The result updates immediately using the relationship below.
FORMULA1 kilowatt-hour = 3,600,000 joules
Kilowatt-hours to Joules conversion table
| Kilowatt-hours (kWh) | Joules (J) |
|---|---|
| 1 | 3,600,000 |
| 5 | 18,000,000 |
| 10 | 36,000,000 |
| 20 | 72,000,000 |
| 50 | 180,000,000 |
| 100 | 360,000,000 |
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 joules are in one kilowatt-hour?
One kilowatt-hour equals 3,600,000 joules.
How do you convert kilowatt-hours to joules?
Multiply the kilowatt-hour value by 3,600,000.
Can I convert joules back to kilowatt-hours?
Yes. One joule equals 0.00000028 kilowatt-hours; you can also use the swap button.