Joules to Kilowatt-hours Converter
Convert joules to kilowatt-hours instantly. One joule equals 2.7778e-7 kilowatt-hours, so you can type any value in J and read the answer in kWh.…
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Convert joules to kilowatt-hours instantly. One joule equals 2.7778e-7 kilowatt-hours, so you can type any value in J and read the answer in kWh. The page also shows a conversion table and the exact formula used.
Worked example
Example calculated from the starting values. Enter your own values and press Calculate to get your result.
1 J = 2.7778e-7 kWh
With the default inputs (value in joules = 1 J), the results are: kilowatt-hours 2.7778e-7 kWh.
Joules to kilowatt-hours conversion table
Reference table based on the example values; it is not your calculation result.
| joules (J) | kilowatt-hours (kWh) |
|---|---|
| 1 | 2.7778e-7 |
| 2 | 5.5556e-7 |
| 5 | 0.00000138889 |
| 10 | 0.00000277778 |
| 25 | 0.00000694444 |
| 50 | 0.0000138889 |
| 100 | 0.0000277778 |
| 500 | 0.000138889 |
| 1,000 | 0.000277778 |
Frequently asked questions
How many kilowatt-hours are in one joule?
1 joule = 2.7778e-7 kilowatt-hours.
What is the formula to convert joules to kilowatt-hours?
Multiply the value in joules by 2.7778e-7.
How do I convert kilowatt-hours back to joules?
1 kilowatt-hour = 3,600,000 joules.
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