Joule to Watt-hour Converter
Convert Joules (J) to Watt-hours (Wh) instantly. Enter a value below for an accurate Energy conversion.
Convert Energy
Convert from Joule to Watt-hour
Result will be here
Joule to Watt-hour: Quick Answer
One Joule (J) equals 0.000278 Watt-hours (Wh). To convert any value, enter it above or use the formula below.
Formula
Multiply the Joule value by 0.000278 to get the equivalent in Watt-hours.
Joule to Watt-hour Conversion Table
| J | Wh |
|---|---|
| 1 | 0.000278 |
| 2 | 0.000556 |
| 3 | 0.000833 |
| 5 | 0.001389 |
| 10 | 0.002778 |
| 20 | 0.005556 |
| 50 | 0.013889 |
| 100 | 0.027778 |
| 1,000 | 0.277778 |
| Wh | J |
|---|---|
| 1 | 3,600 |
| 2 | 7,200 |
| 3 | 10,800 |
| 5 | 18,000 |
| 10 | 36,000 |
| 20 | 72,000 |
| 50 | 180,000 |
| 100 | 360,000 |
| 1,000 | 3,600,000 |
Frequently Asked Questions
How many Watt-hours are in one Joule?
One Joule equals 0.000278 Watt-hours.
How do I convert Joules to Watt-hours?
Multiply the number of Joules by 0.000278. For example, 10 J = 0.002778 Wh.
Is the J to Wh converter free?
Yes. Quick Unit Convert is completely free to use, with no signup required.