Joules to Watt-hours Converter
1 joule = 0.0002777778 watt-hours
1 watt-hour = 3,600 joules
How to convert joules to watt-hours
To convert joules to watt-hours, divide the value in joules by 3,600.
Wh = J ÷ 3,600
Example: 100 J ÷ 3,600 = 0.02777778 Wh
Joules to Watt-hours conversion table
| Joule (J) | Watt-hour (Wh) |
|---|---|
| 1 J | 0.0002777778 Wh |
| 2 J | 0.0005555556 Wh |
| 3 J | 0.0008333333 Wh |
| 4 J | 0.001111111 Wh |
| 5 J | 0.001388889 Wh |
| 6 J | 0.001666667 Wh |
| 7 J | 0.001944444 Wh |
| 8 J | 0.002222222 Wh |
| 9 J | 0.0025 Wh |
| 10 J | 0.002777778 Wh |
| 12 J | 0.003333333 Wh |
| 15 J | 0.004166667 Wh |
| 20 J | 0.005555556 Wh |
| 25 J | 0.006944444 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 |
| 75 J | 0.02083333 Wh |
| 80 J | 0.02222222 Wh |
| 90 J | 0.025 Wh |
| 100 J | 0.02777778 Wh |
| 150 J | 0.04166667 Wh |
| 200 J | 0.05555556 Wh |
| 250 J | 0.06944444 Wh |
| 500 J | 0.1388889 Wh |
| 1,000 J | 0.2777778 Wh |
About these units
Joule (J)
The joule (J) is a unit of energy in the International System of Units (SI). It is the reference unit for all energy conversions on this site.
Watt-hour (Wh)
The watt-hour (Wh) is a metric unit of energy accepted for use with the SI. 1 watt-hour equals 3,600 joules. This value is exact by definition.
Frequently asked questions
What is 1 joule in watt-hours?
1 joule equals 0.0002777778 watt-hours.
How do I convert joules to watt-hours?
To convert joules to watt-hours, divide the value in joules by 3,600. Example: 100 J ÷ 3,600 = 0.02777778 Wh
What is 100 J in watt-hours?
100 joules equals 0.02777778 watt-hours.