Watt-hours to Joules Converter
1 Watt-hour = 3,600 Joules
Wh
J
1 Wh = 3,600 J. To convert watt-hours to joules, multiply by 3,600; to convert back, multiply by 0.000277778.
Conversion formula
1 Wh = 3,600 J
To convert from Watt-hours to Joules, multiply the value in watt-hours by 3,600.
| Watt-hours (Wh) | Joules (J) |
|---|---|
| 0.001 | 3.6 |
| 0.01 | 36 |
| 0.1 | 360 |
| 1 | 3,600 |
| 2 | 7,200 |
| 5 | 18,000 |
| 10 | 36,000 |
| 25 | 90,000 |
| 50 | 180,000 |
| 100 | 360,000 |
| 250 | 900,000 |
| 500 | 1,800,000 |
| 1000 | 3,600,000 |
1 watt-hour in every energy unit
| Joules | 3,600 J |
| Kilojoules | 3.6 kJ |
| Megajoules | 0.0036 MJ |
| Calories | 860.421 cal |
| Kilocalories | 0.860421 kcal |
| Kilowatt-hours | 0.001 kWh |
| British Thermal Units | 3.41214 BTU |
Frequently Asked Questions
How many joules are in 1 watt-hour?
1 watt-hour equals 3,600 joules. So 10 watt-hours are 36,000 joules and 100 watt-hours are 360,000 joules.
How do I convert watt-hours to joules by hand?
Multiply the number of watt-hours by 3,600. To go the other way, multiply joules by 0.000277778 (or divide by 3,600).
How many watt-hours are in 1 joule?
1 joule equals 0.000277778 watt-hours.