Joules to Kilowatt-hours

Convert joules to kilowatt-hours instantly — type a value, get the answer.

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Kilowatt-hours0.0000kWh

Multiply joules by 0.00000027777777777778 to get kilowatt-hours. 1 J = 0.00000027777777777778 kWh.

Joules (J)Kilowatt-hours (kWh)
1 J0 kWh
2 J0 kWh
5 J0 kWh
10 J0 kWh
25 J0 kWh
50 J0 kWh
100 J0 kWh

Common joules-to-kilowatt-hours conversions, rounded to 4 decimals.

How to convert joules to kilowatt-hours

Multiply the number of joules by 0.00000027777777777778. For example, 10 J × 0.00000027777777777778 = 0 kWh. The converter above does this for any value instantly, and the table below lists the conversions people look up most.

Converting kilowatt-hours back to joules

To go the other way, divide the kWh value by 0.00000027777777777778 — or multiply by 3,600,000. So 1 kWh ≈ 3,600,000 J.

Questions

How many kilowatt-hours are in a joule?
One joule equals 0.00000027777777777778 kilowatt-hours. Multiply any J figure by 0.00000027777777777778 to convert it to kWh.
How do I convert kilowatt-hours back to joules?
Divide the kWh value by 0.00000027777777777778, or multiply by 3,600,000. For example, 5 kWh ≈ 18,000,000 J.
What is 10 J in kWh?
10 J = 0 kWh. Type any value into the converter above to see its kilowatt-hours equivalent.