Kilowatt-hours to Joules Converter

Convert kilowatt-hours to joules instantly. One kilowatt-hour equals 3,600,000 joules, so you can type any value in kWh and read the answer in J.…

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Convert kilowatt-hours to joules instantly. One kilowatt-hour equals 3,600,000 joules, so you can type any value in kWh and read the answer in J. The page also shows a conversion table and the exact formula used.

Enter your values

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Worked example

Example calculated from the starting values. Enter your own values and press Calculate to get your result.

Joules3,600,000 J

1 kWh = 3,600,000 J

With the default inputs (value in kilowatt-hours = 1 kWh), the results are: joules 3,600,000 J.

Kilowatt-hours to joules conversion table

Reference table based on the example values; it is not your calculation result.

kilowatt-hours (kWh)joules (J)
13,600,000
27,200,000
518,000,000
1036,000,000
2590,000,000
50180,000,000
100360,000,000
5001,800,000,000
1,0003,600,000,000

Frequently asked questions

How many joules are in one kilowatt-hour?

1 kilowatt-hour = 3,600,000 joules.

What is the formula to convert kilowatt-hours to joules?

Multiply the value in kilowatt-hours by 3,600,000.

How do I convert joules back to kilowatt-hours?

1 joule = 2.7778e-7 kilowatt-hours.

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