Energy converter
Watt-hours to Joules Converter
Convert energy from watt-hours (Wh) to physical work in joules (J).
How Wh to Joules works
A watt-hour (Wh) represents one watt of power sustained for one hour (3,600 seconds). Since one watt is equal to one joule per second, multiplying one watt-hour by 3,600 yields the equivalent energy in joules.
To convert watt-hours to joules, simply multiply by 3,600. This is useful for analyzing battery storage or small home appliances.
Formula
1
J = Wh × 3,6001 Wh = 3.6 kJ = 3,600 J
Wh to Joules conversion table
| Watt-hours↕ | Joules↕ | Kilojoules↕ |
|---|---|---|
| 1 Wh | 3,600 J | 3.6 kJ |
| 5 Wh | 18,000 J | 18 kJ |
| 10 Wh | 36,000 J | 36 kJ |
| 50 Wh | 180,000 J | 180 kJ |
| 100 Wh | 360,000 J | 360 kJ |
| 500 Wh | 1,800,000 J | 1,800 kJ |
| 1,000 Wh | 3,600,000 J | 3,600 kJ |
FAQ: Wh to Joules
How many joules are in a watt-hour?
There are exactly 3,600 joules in one watt-hour. One watt is one joule per second, and there are 3,600 seconds in one hour, so 1 × 3,600 = 3,600 J.
How do you convert Wh to joules?
Multiply the watt-hour value by 3,600. For example, a 5 Wh battery stores 5 × 3,600 = 18,000 joules of energy.
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