Convert gigajoules to kilowatt-hours
1 GJ = 277.777777778 kWh — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
277.777 777 778kWh
As a fraction: 2500/9
1 GJ = 277.777777778 kWh
How to convert gigajoules to kilowatt-hours
Multiply the number of gigajoules by 277.777777778 to get kilowatt-hours.
Kilowatt-hour: How electricity is billed everywhere.
Gigajoule to Kilowatt-hour conversion table
| Gigajoules (GJ) | Kilowatt-hours (kWh) |
|---|---|
| 1 GJ | 277.777 78 |
| 2 GJ | 555.555 56 |
| 3 GJ | 833.333 33 |
| 5 GJ | 1388.8889 |
| 10 GJ | 2777.7778 |
| 20 GJ | 5555.5556 |
| 25 GJ | 6944.4444 |
| 50 GJ | 13 888.889 |
| 100 GJ | 27 777.778 |
| 250 GJ | 69 444.444 |
| 500 GJ | 138 888.89 |
| 1000 GJ | 277 777.78 |
Kilowatt-hour to Gigajoule conversion table
| Kilowatt-hours (kWh) | Gigajoules (GJ) |
|---|---|
| 1 kWh | 0.0036 |
| 2 kWh | 0.0072 |
| 3 kWh | 0.0108 |
| 5 kWh | 0.018 |
| 10 kWh | 0.036 |
| 20 kWh | 0.072 |
| 25 kWh | 0.09 |
| 50 kWh | 0.18 |
| 100 kWh | 0.36 |
| 250 kWh | 0.9 |
| 500 kWh | 1.8 |
| 1000 kWh | 3.6 |
Frequently asked
How many kilowatt-hours are in a gigajoule?
One gigajoule equals 277.7777778 kilowatt-hours (GJ → kWh). That figure is exact, not rounded.
How do you convert gigajoules to kilowatt-hours?
Multiply the number of gigajoules by 277.777777778 to get kilowatt-hours.
What is 1 kWh in gigajoules?
One kilowatt-hour is 0.0036 gigajoules.
What is 10 GJ in kWh?
10 GJ = 2777.7778 kWh.
What exactly is a kilowatt-hour?
How electricity is billed everywhere.