Convert joules to kilowatt-hours
1 J = 0.000000277777777778 kWh — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.000 000 277 777 777 778kWh
As a fraction: 1/3600000
1 J = 0.000000277777777778 kWh
How to convert joules to kilowatt-hours
Multiply the number of joules by 0.000000277777777778 to get kilowatt-hours.
Kilowatt-hour: How electricity is billed everywhere.
Joule to Kilowatt-hour conversion table
| Joules (J) | Kilowatt-hours (kWh) |
|---|---|
| 1 J | 0.000 000 277 777 78 |
| 2 J | 0.000 000 555 555 56 |
| 3 J | 0.000 000 833 333 33 |
| 5 J | 0.000 001 388 888 9 |
| 10 J | 0.000 002 777 777 8 |
| 20 J | 0.000 005 555 555 6 |
| 25 J | 0.000 006 944 444 4 |
| 50 J | 0.000 013 888 889 |
| 100 J | 0.000 027 777 778 |
| 250 J | 0.000 069 444 444 |
| 500 J | 0.000 138 888 89 |
| 1000 J | 0.000 277 777 78 |
Kilowatt-hour to Joule conversion table
| Kilowatt-hours (kWh) | Joules (J) |
|---|---|
| 1 kWh | 3 600 000 |
| 2 kWh | 7 200 000 |
| 3 kWh | 10 800 000 |
| 5 kWh | 18 000 000 |
| 10 kWh | 36 000 000 |
| 20 kWh | 72 000 000 |
| 25 kWh | 90 000 000 |
| 50 kWh | 180 000 000 |
| 100 kWh | 360 000 000 |
| 250 kWh | 900 000 000 |
| 500 kWh | 1 800 000 000 |
| 1000 kWh | 3 600 000 000 |
Frequently asked
How many kilowatt-hours are in a joule?
One joule equals 0.0000002777777778 kilowatt-hours (J → kWh). That figure is exact, not rounded.
How do you convert joules to kilowatt-hours?
Multiply the number of joules by 0.000000277777777778 to get kilowatt-hours.
What is 1 kWh in joules?
One kilowatt-hour is 3600000 joules.
What is 10 J in kWh?
10 J = 0.000 002 777 777 8 kWh.
What exactly is a kilowatt-hour?
How electricity is billed everywhere.