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Watt hours to Joules

One watt hour is 3,600 joules. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.

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3,600

1 watt hour = 3,600 joules · open this conversion

Formula

joules = watt hours × 3,600

A food Calorie (capital C) is a kilocalorie. The thermochemical calorie of 4.184 J is used here.

Watt hours to Joules table

Watt hoursJoules
1 Wh3,600 J
2 Wh7,200 J
5 Wh18,000 J
10 Wh36,000 J
20 Wh72,000 J
25 Wh90,000 J
50 Wh180,000 J
100 Wh360,000 J
150 Wh540,000 J
200 Wh720,000 J
250 Wh900,000 J
300 Wh1,080,000 J
400 Wh1,440,000 J
500 Wh1,800,000 J
600 Wh2,160,000 J
800 Wh2,880,000 J
1,000 Wh3,600,000 J
1,500 Wh5,400,000 J
2,000 Wh7,200,000 J
2,500 Wh9,000,000 J
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Other energy conversions

⇄ Joules to Watt hoursWatt hours to KilojoulesWatt hours to CaloriesWatt hours to KilocaloriesWatt hours to Kilowatt hours

Frequently asked questions

▸How many joules are in a watt hour?
One watt hour is 3,600 joules. joules = watt hours × 3,600.
▸How do I convert watt hours to joules?
Multiply the number of watt hours by 3,600. For example, 10 Wh × 3,600 = 36,000 J.
▸What is the difference between watt hours and joules?
Watt hour (Wh) and Joule (J) both measure energy. Energy units for food, electricity and physics. The "calorie" on a nutrition label is a kilocalorie — 1,000 of the calories used in physics.
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