Joule to Watt-hour (J → Wh)
Convert joule to watt-hour instantly. The conversion factor below is exact by international definition.
Realtime·energy·SI
Exact
J
× 0.0003
Wh
0.00027778
Precision [auto]
6
📐J to Wh formulaExact
Wh = J × 0.000277777778
Inverse: J = Wh × 3600
Worked example: 1 J = 0.000277777778 Wh
ℹ️About these units
Joule (J)
Watt-hour (Wh)
📊Reference table: J → Wh
| Joule (J) | Watt-hour (Wh) |
|---|---|
| 1 | 0.00027778 |
| 2 | 0.00055556 |
| 5 | 0.001389 |
| 10 | 0.002778 |
| 15 | 0.004167 |
| 20 | 0.005556 |
| 25 | 0.006944 |
| 50 | 0.013889 |
| 100 | 0.027778 |
| 250 | 0.069444 |
| 500 | 0.138889 |
| 750 | 0.208333 |
| 1,000 | 0.277778 |
Want a downloadable CSV? Append ?format=csv to the API /api/v1/table endpoint.
🔁Reverse & related
🔌API & widget
GET https://convertnavi.com/api/v1/convert?value=10&from=joule&to=watt-hourEmbed this converter
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