ENERGY CONVERSION
Joule to Kilowatt-hour.
Convert joule (J) to kilowatt-hour (kWh), with the math explained.
1 J = 2.777777778e-7 kWh
THE MATH, MADE SIMPLE
How to convert joule to kilowatt-hour
Multiply your joule value by 2.77777777778e-7 to get the equivalent in kilowatt-hour. Both units are normalized through the joule.
kWh = J × 2.777777778e-710 J = 0.00000277777777778 kWh
Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.QUICK REFERENCE
J to kWh conversion table
| Joule (J) | Kilowatt-hour (kWh) |
|---|---|
| 1 J | 2.77777777778e-7 kWh |
| 2 J | 5.55555555556e-7 kWh |
| 5 J | 0.00000138888888889 kWh |
| 10 J | 0.00000277777777778 kWh |
| 20 J | 0.00000555555555556 kWh |
| 50 J | 0.0000138888888889 kWh |
| 100 J | 0.0000277777777778 kWh |
| 500 J | 0.000138888888889 kWh |
| 1,000 J | 0.000277777777778 kWh |
About the joule
The joule (J) is a unit of energy. One joule equals 1 joule (base unit) in this calculator.
All joule conversionsAbout the kilowatt-hour
The kilowatt-hour (kWh) is a unit of energy. One kilowatt-hour equals 3,600,000 joule (base unit) in this calculator.
All kilowatt-hour conversionsCommon questions
What is 1 J in kWh?
One joule equals 2.77777777778e-7 kWh. Use the formula above for other values.
Why might another calculator show a different last digit?
Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.
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