⚡ Energy & Calories

Convert joules to watt-hours (Energy)

1 J = 0.000277778 Wh. Convert joules to watt-hours instantly with the converter below.

Value

Result —

How to convert

Divide the value (J) by 3,600 to get Wh — example: 5 J = 0.00138889 Wh

Conversion table

Joules to watt-hours conversion table
Joule	Watt-hour
1 J	0.000277778 Wh
2 J	0.000555556 Wh
5 J	0.00138889 Wh
10 J	0.00277778 Wh
50 J	0.0138889 Wh
100 J	0.0277778 Wh
250 J	0.0694444 Wh
500 J	0.138889 Wh
1,000 J	0.277778 Wh
2,000 J	0.555556 Wh

About the units

Joule — symbol J.
Watt-hour — symbol Wh.

Frequently asked questions

How many watt-hours are in 1 joule?

1 J = 0.000277778 Wh.

How do I convert joules to watt-hours?

Divide the value (J) by 3,600 to get Wh.

How many joules are in 1 watt-hour?

1 Wh = 3,600 J.

Is the conversion accurate?

Yes. It uses the standard international conversion factors and runs entirely in your browser, uploading no data.

Related conversions

Reverse: watt-hours to joules

Joules to other units

joules to kilojoules joules to calories joules to kilocalories joules to kilowatt-hours joules to BTU

Other units to watt-hours

kilojoules to watt-hours calories to watt-hours kilocalories to watt-hours kilowatt-hours to watt-hours BTU to watt-hours

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