Joules to Watt-hours Converter
How to convert joules to watt-hours
watt-hours = joules ÷ 3,600
To convert joules to watt-hours, divide the number of joules by 3,600.
1 J = 0.000277777778 Wh
Examples
- 1,000 J ÷ 3,600 = 0.277777778 Wh
- One kilocalorie: 4,184 J ÷ 3,600 = 1.16222222 Wh
Joules to watt-hours conversion table
| Joules (J) | Watt-hours (Wh) |
|---|---|
| 1 J | 0.000277777778 Wh |
| 2 J | 0.000555555556 Wh |
| 5 J | 0.00138888889 Wh |
| 10 J | 0.00277777778 Wh |
| 20 J | 0.00555555556 Wh |
| 50 J | 0.0138888889 Wh |
| 100 J | 0.0277777778 Wh |
| 200 J | 0.0555555556 Wh |
| 250 J | 0.0694444444 Wh |
| 500 J | 0.138888889 Wh |
| 1,000 J | 0.277777778 Wh |
| 2,000 J | 0.555555556 Wh |
| 2,500 J | 0.694444444 Wh |
| 5,000 J | 1.38888889 Wh |
| 10,000 J | 2.77777778 Wh |
Unit definitions
- Joule (J)
- The joule is the SI unit of energy, equal to the work done by a force of one newton over one meter, or one watt for one second.
- Watt-hour (Wh)
- A watt-hour is the energy used by a 1 watt load running for one hour, exactly 3600 joules. It is used for battery capacities.