Energy
Joule to Watt-hours
Convert joule to watt-hours instantly.
About this conversion
Joule (J) er SI-grundenheden for energi og bruges i fysik, kemi og teknik. Watt-hours (Wh) are used for battery capacity and electricity consumption reports. Use the converter above to quickly go from joule to watt-hours.
How to use
Enter a value in the joule field and instantly see the result in watt-hours. Click the swap button to reverse the conversion.
Manual calculation
1 joule = 0.00027778 watt-hours. Example: 10 J = 0.0027778 Wh.
Frequently asked questions
How many watt-hours are in 1 joule?
1 Joule equals 0.00027778 watt-hours.
When do you use watt-hours?
Watt-hours (Wh) are used for battery capacity and electricity consumption reports.