Joule to Watt-hour Converter

1 J = 0.0002777778 Wh

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FORMULA

1 J = 0.0002777778 Wh
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CONVERSION TABLE

Joule (J) Watt-hour (Wh)
1 J 0.0002777778 Wh
5 J 0.0013888889 Wh
10 J 0.0027777778 Wh
25 J 0.0069444444 Wh
50 J 0.013889 Wh
100 J 0.027778 Wh
250 J 0.069444 Wh
500 J 0.138889 Wh
1,000 J 0.277778 Wh
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COMMON VALUES

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About Joule (J)

The SI derived unit of energy, one joule equals the work done by a force of one newton moving an object one meter. Named after James Prescott Joule, who demonstrated the mechanical equivalent of heat, the joule is used in physics, chemistry, and engineering for all forms of energy, work, and heat.

About Watt-hour (Wh)

One watt sustained for one hour equals 3,600 joules. The watt-hour is used for small-scale electrical energy measurements such as battery capacity in consumer electronics. A smartphone battery typically holds 10-20 Wh, and laptop batteries range from 40 to 100 Wh.

How to Convert Joule to Watt-hour

The conversion formula is: 1 J = 0.0002777778 Wh. To convert from Joule (J) to Watt-hour (Wh), use the formula above or the interactive converter at the top of this page.

Frequently Asked Questions

How many Watt-hour in 1 Joule?

1 Joule (J) equals 0.0002777778 Watt-hour (Wh).

How to convert Joule to Watt-hour?

Multiply the Joule value by 0.0002777778 to get the equivalent in Watt-hour. Formula: 1 J = 0.0002777778 Wh

What is the formula for Joule to Watt-hour conversion?

1 J = 0.0002777778 Wh