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Joule to Watt-Hours Converter

Convert joules (J) to watt-hours (Wh) instantly with a free online converter, formula and conversion table.

How to convert joules to watt-hours

To convert joules to watt-hours, multiply the value by 0.000277778.

Joules to watt-hours chart

JoulesWatt-Hours
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

How many watt-hours are in 1 joule?

1 joule = 0.000277778 watt-hours.

Need the opposite? Try watt-hour to joules.

About this joule to watt-hours converter

Convert joules (J) to watt-hours (Wh) instantly with a free online converter, formula and conversion table. It works instantly on any phone or computer, needs no download and costs nothing.

Frequently asked questions

Is the Joule to Watt-Hours Converter free to use?

Yes. The Joule to Watt-Hours Converter on QuickKit is completely free, with no sign-up needed.

Is my data safe when I use the Joule to Watt-Hours Converter?

Yes. Everything runs inside your browser, so what you type or upload is never sent to our servers.

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