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Convert joules to watt-hours. Completely free.
1 joule is 0.00027777778 watt-hours. Type any value below for the exact answer. It all happens in this tab, with no account and no paid version.
Joules to watt-hours converter
1 joule=0.00027777778 watt-hours
Formulawatt-hours = joules × 0.00027777778
How to convert joules to watt-hours
- Type a value, or a question like the one already filled in.
- The result appears as you type, alongside every related unit.
- Copy it.
Energy chart
| Joules | Watt-hours |
|---|---|
| 1 | 0.00027777778 |
| 2 | 0.00055555556 |
| 5 | 0.0013888889 |
| 10 | 0.0027777778 |
| 25 | 0.0069444444 |
| 50 | 0.013888889 |
| 100 | 0.027777778 |
| 1,000 | 0.27777778 |
Questions
Is this joules to watt-hours converter really free?
Yes, completely. Every tool and every format is free, and there's no paid version, account, watermark or daily limit.
Does anything get sent to a server?
No. It all runs in your browser, so it keeps working once the page has loaded, even offline.
How do I convert joules to watt-hours?
Use watt-hours = joules × 0.00027777778. 1 joule is 0.00027777778 watt-hours. Type any value in the converter above, or a plain question like "5 j in wh".
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