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Kilowatt hours to Joules

One kilowatt hour is 3,600,000 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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3,600,000

1 kilowatt hour = 3,600,000 joules · open this conversion

Formula

joules = kilowatt hours × 3,600,000

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

Kilowatt hours to Joules table

Kilowatt hoursJoules
1 kWh3,600,000 J
2 kWh7,200,000 J
5 kWh18,000,000 J
10 kWh36,000,000 J
20 kWh72,000,000 J
25 kWh90,000,000 J
50 kWh180,000,000 J
100 kWh360,000,000 J
150 kWh540,000,000 J
200 kWh720,000,000 J
250 kWh900,000,000 J
300 kWh1,080,000,000 J
400 kWh1,440,000,000 J
500 kWh1,800,000,000 J
600 kWh2,160,000,000 J
800 kWh2,880,000,000 J
1,000 kWh3,600,000,000 J
1,500 kWh5,400,000,000 J
2,000 kWh7,200,000,000 J
2,500 kWh9,000,000,000 J
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Frequently asked questions

How many joules are in a kilowatt hour?
One kilowatt hour is 3,600,000 joules. joules = kilowatt hours × 3,600,000.
How do I convert kilowatt hours to joules?
Multiply the number of kilowatt hours by 3,600,000. For example, 10 kWh × 3,600,000 = 36,000,000 J.
What is the difference between kilowatt hours and joules?
Kilowatt hour (kWh) 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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