Joules to Kilowatt-hours
Convert joules to kilowatt-hours for electricity bills, appliance energy consumption, batteries, and one kilowatt for one hour calculations.
How to convert J to kWh
To convert a value from joules (J) to kilowatt-hours (kWh), enter the number in the converter above. Use the swap control if you need the reverse direction.
x is the source value in J; y is the result in kWh.
Popular conversions
Quick answers for common J to kWh values are available from the related conversion pages.
Use the related tools section for fixed-value conversions and the reverse direction.
Common conversion table
Quick reference table for common J to kWh values:
| J | kWh |
|---|---|
| 1 | 2.7778e-7 |
| 5 | 1.3889e-6 |
| 10 | 2.7778e-6 |
| 50 | 1.3889e-5 |
| 100 | 2.7778e-5 |
| 1,000 | 0.000278 |
About joules
Joule (J) — The joule is the SI derived unit of energy. One joule is one watt-second.
Common uses: Joules are used in physics, chemistry, engineering, mechanics, heat energy, and SI energy specifications.
About kilowatt-hours
Kilowatt-hour (kWh) — One kilowatt-hour is exactly 3,600,000 joules: 1,000 watts sustained for one hour.
Common uses: Kilowatt-hours are used for electricity bills, appliance energy consumption, batteries, energy storage, and utility comparisons.
Frequently Asked Questions
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