Watt-hours to Joules Converter
Convert watt-hours to joules instantly. One watt-hour equals 3,600 joules, so you can type any value in Wh and read the answer in J. The page also…
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Convert watt-hours to joules instantly. One watt-hour equals 3,600 joules, so you can type any value in Wh and read the answer in J. The page also shows a conversion table and the exact formula used.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
1 Wh = 3,600 J
With the default inputs (value in watt-hours = 1 Wh), the results are: joules 3,600 J.
Watt-hours to joules conversion table
Reference table based on the example values; it is not your calculation result.
| watt-hours (Wh) | joules (J) |
|---|---|
| 1 | 3,600 |
| 2 | 7,200 |
| 5 | 18,000 |
| 10 | 36,000 |
| 25 | 90,000 |
| 50 | 180,000 |
| 100 | 360,000 |
| 500 | 1,800,000 |
| 1,000 | 3,600,000 |
Frequently asked questions
How many joules are in one watt-hour?
1 watt-hour = 3,600 joules.
What is the formula to convert watt-hours to joules?
Multiply the value in watt-hours by 3,600.
How do I convert joules back to watt-hours?
1 joule = 0.000277778 watt-hours.
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