watt-hour to joule

1 watt-hour equals 3600 joule, and 1 joule equals 0.000277778 watt-hour.

Conversion formula

J = Wh × 3600

To convert watt-hour to joule, multiply the value by 3600.

Conversion table

1 Wh3600 J
2 Wh7200 J
5 Wh18000 J
10 Wh36000 J
25 Wh90000 J
50 Wh180000 J
100 Wh360000 J
500 Wh1800000 J
1000 Wh3600000 J

Reverse conversion table

1 J0.000277778 Wh
2 J0.000555556 Wh
5 J0.00138889 Wh
10 J0.00277778 Wh
25 J0.00694444 Wh
50 J0.0138889 Wh
100 J0.0277778 Wh
500 J0.138889 Wh
1000 J0.277778 Wh

Key facts

1 watt-hour3600 joule
1 joule0.000277778 watt-hour

Frequently asked questions

How do I convert watt-hour to joule?

Multiply the watt-hour value by 3600 to get joule. For example, 10 watt-hour = 36000 joule.

How do I convert joule back to watt-hour?

Divide the joule value by 3600 (equivalently, multiply by 0.000277778) to get watt-hour.

Reverse conversion

Printable A4 conversion cheat sheet — see the Downloads page

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