Convert watt-hours to joules
1 Wh = 3600 J — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
3600J
1 Wh = 3600 J
How to convert watt-hours to joules
Multiply the number of watt-hours by 3600 to get joules.
The exact factor is 3600 .
Watt-hour to Joule conversion table
| Watt-hours (Wh) | Joules (J) |
|---|---|
| 1 Wh | 3600 |
| 2 Wh | 7200 |
| 3 Wh | 10 800 |
| 5 Wh | 18 000 |
| 10 Wh | 36 000 |
| 20 Wh | 72 000 |
| 25 Wh | 90 000 |
| 50 Wh | 180 000 |
| 100 Wh | 360 000 |
| 250 Wh | 900 000 |
| 500 Wh | 1 800 000 |
| 1000 Wh | 3 600 000 |
Joule to Watt-hour conversion table
| Joules (J) | Watt-hours (Wh) |
|---|---|
| 1 J | 0.000 277 777 78 |
| 2 J | 0.000 555 555 56 |
| 3 J | 0.000 833 333 33 |
| 5 J | 0.001 388 888 9 |
| 10 J | 0.002 777 777 8 |
| 20 J | 0.005 555 555 6 |
| 25 J | 0.006 944 444 4 |
| 50 J | 0.013 888 889 |
| 100 J | 0.027 777 778 |
| 250 J | 0.069 444 444 |
| 500 J | 0.138 888 89 |
| 1000 J | 0.277 777 78 |
Frequently asked
How many joules are in a watt-hour?
One watt-hour equals 3600 joules (Wh → J). That figure is exact, not rounded.
How do you convert watt-hours to joules?
Multiply the number of watt-hours by 3600 to get joules.
What is 1 J in watt-hours?
One joule is 0.0002777777778 watt-hours.
What is 10 Wh in J?
10 Wh = 36 000 J.