Joules to Watt-hours
Convert joules (J) to watt-hours (Wh). Type in either box; the other updates as you go.
How to convert joules to watt-hours
To convert joules to watt-hours, divide the number of joules by 3,600.
Example
Convert 50 joules to watt-hours:
Joule to watt-hour conversion chart
| Joules (J) | Watt-hours (Wh) |
|---|---|
| 10 J | 0.002777778 Wh |
| 20 J | 0.005555556 Wh |
| 30 J | 0.008333333 Wh |
| 40 J | 0.01111111 Wh |
| 50 J | 0.01388889 Wh |
| 60 J | 0.01666667 Wh |
| 70 J | 0.01944444 Wh |
| 80 J | 0.02222222 Wh |
| 90 J | 0.025 Wh |
| 100 J | 0.02777778 Wh |
| 120 J | 0.03333333 Wh |
| 150 J | 0.04166667 Wh |
| 200 J | 0.05555556 Wh |
| 250 J | 0.06944444 Wh |
| 300 J | 0.08333333 Wh |
| 400 J | 0.1111111 Wh |
| 500 J | 0.1388889 Wh |
| 600 J | 0.1666667 Wh |
| 700 J | 0.1944444 Wh |
| 750 J | 0.2083333 Wh |
| 800 J | 0.2222222 Wh |
| 900 J | 0.25 Wh |
| 1,000 J | 0.2777778 Wh |
| 1,500 J | 0.4166667 Wh |
| 2,000 J | 0.5555556 Wh |
| 2,500 J | 0.6944444 Wh |
| 5,000 J | 1.388889 Wh |
| 10,000 J | 2.777778 Wh |
Going the other way? See the watt-hours to joules chart.
About the units
Joule (J)
The joule is the SI unit of energy: the work done by a force of one newton over one meter.
Watt-hour (Wh)
A watt-hour is the energy of one watt for one hour, 3,600 joules. Batteries are rated in watt-hours.
Frequently asked questions
How many watt-hours are in a joule?
There are 0.0002777777778 watt-hours in a joule.
How many joules are in a watt-hour?
There are 3,600 joules in a watt-hour.
How do you convert joules to watt-hours?
To convert joules to watt-hours, divide the number of joules by 3,600.
What is 50 joules in watt-hours?
50 joules equals 0.0138889 watt-hours.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.