joules to watt-hours

Free online converter — type a value and get the result instantly. No signup, works offline in your browser.

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All calculations run locally in your browser — nothing is uploaded.

Conversion formula

1 J = 0.000278 Wh

joules to watt-hours conversion table

joules (J)watt-hours (Wh)
0.1 J2.7778e-05 Wh
0.25 J6.9444e-05 Wh
0.5 J0.000139 Wh
1 J0.000278 Wh
2 J0.000556 Wh
3 J0.000833 Wh
5 J0.001389 Wh
10 J0.002778 Wh
20 J0.005556 Wh
25 J0.006944 Wh
50 J0.013889 Wh
100 J0.027778 Wh
250 J0.069444 Wh
500 J0.138889 Wh
1000 J0.277778 Wh
5000 J1.388889 Wh
10000 J2.777778 Wh

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FAQ

How do I convert joules to watt-hours?

Type a value in joules in the converter above — the equivalent in watt-hours is calculated instantly. 1 J equals 0.000278 Wh.

What is the formula to convert joules to watt-hours?

Multiply the value in joules by 0.000278 to get the value in watt-hours.

How many watt-hours are in 1 joules?

There are 0.000278 watt-hours in 1 J.