Watt-hours to Joules
Convert watt-hours (Wh) to joules (J). Type in either box; the other updates as you go.
How to convert watt-hours to joules
To convert watt-hours to joules, multiply the number of watt-hours by 3,600.
Example
Convert 5 watt-hours to joules:
Watt-hour to joule conversion chart
| Watt-hours (Wh) | Joules (J) |
|---|---|
| 1 Wh | 3,600 J |
| 2 Wh | 7,200 J |
| 3 Wh | 10,800 J |
| 4 Wh | 14,400 J |
| 5 Wh | 18,000 J |
| 6 Wh | 21,600 J |
| 7 Wh | 25,200 J |
| 8 Wh | 28,800 J |
| 9 Wh | 32,400 J |
| 10 Wh | 36,000 J |
| 12 Wh | 43,200 J |
| 15 Wh | 54,000 J |
| 20 Wh | 72,000 J |
| 25 Wh | 90,000 J |
| 30 Wh | 108,000 J |
| 40 Wh | 144,000 J |
| 50 Wh | 180,000 J |
| 60 Wh | 216,000 J |
| 70 Wh | 252,000 J |
| 75 Wh | 270,000 J |
| 80 Wh | 288,000 J |
| 90 Wh | 324,000 J |
| 100 Wh | 360,000 J |
| 150 Wh | 540,000 J |
| 200 Wh | 720,000 J |
| 250 Wh | 900,000 J |
| 500 Wh | 1,800,000 J |
| 1,000 Wh | 3,600,000 J |
Going the other way? See the joules to watt-hours chart.
About the units
Watt-hour (Wh)
A watt-hour is the energy of one watt for one hour, 3,600 joules. Batteries are rated in watt-hours.
Joule (J)
The joule is the SI unit of energy: the work done by a force of one newton over one meter.
Frequently asked questions
How many joules are in a watt-hour?
There are 3,600 joules in a watt-hour.
How many watt-hours are in a joule?
There are 0.0002777777778 watt-hours in a joule.
How do you convert watt-hours to joules?
To convert watt-hours to joules, multiply the number of watt-hours by 3,600.
What is 5 watt-hours in joules?
5 watt-hours equals 18,000 joules.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.