Watt-hours to Joules Converter
Convert Wh to J instantly. 1 Wh = 3,600 J.
Conversion Formula
J = Wh × 3,600
Example
25 Wh × 3,600 = 90,000 J
Convert the other way: Joules to Watt-hours →
Watt-hours to Joules Conversion Table
| Watt-hours (Wh) | Joules (J) |
|---|---|
| 0.1 | 360 |
| 0.5 | 1,800 |
| 1 | 3,600 |
| 2 | 7,200 |
| 5 | 18,000 |
| 10 | 36,000 |
| 20 | 72,000 |
| 25 | 90,000 |
| 50 | 180,000 |
| 100 | 360,000 |
| 500 | 1,800,000 |
| 1,000 | 3,600,000 |
About These Units
- Watt-hours (Wh)
- Exactly 3,600 joules, the energy delivered by one watt for one hour. Watt-hours rate phone power banks and laptop batteries, and airlines set their lithium battery carry-on limits in this unit.
- Joules (J)
- The SI derived unit of energy, the work done by a force of one newton over one meter, also equal to one watt-second. Physics and chemistry use it throughout, and it is named after James Prescott Joule.
Frequently Asked Questions
How many J are in 1 Wh?
1 Wh equals 3,600 J.
How do I convert Watt-hours to Joules?
Multiply your Watt-hours value by 3,600. For example, 25 Wh × 3,600 = 90,000 J.
How many Wh are in 1 J?
1 J equals 0.000277777778 Wh.