Convert watt-hours to gigajoules
1 Wh = 0.0000036 GJ — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
0.000 003 6GJ
Exact decimal: 0.0000036
As a fraction: 9/2500000
1 Wh = 0.0000036 GJ
How to convert watt-hours to gigajoules
Multiply the number of watt-hours by 0.0000036 to get gigajoules.
The exact factor is 0.0000036 — as a fraction, 9/2500000.
Watt-hour to Gigajoule conversion table
| Watt-hours (Wh) | Gigajoules (GJ) |
|---|---|
| 1 Wh | 0.000 003 6 |
| 2 Wh | 0.000 007 2 |
| 3 Wh | 0.000 010 8 |
| 5 Wh | 0.000 018 |
| 10 Wh | 0.000 036 |
| 20 Wh | 0.000 072 |
| 25 Wh | 0.000 09 |
| 50 Wh | 0.000 18 |
| 100 Wh | 0.000 36 |
| 250 Wh | 0.0009 |
| 500 Wh | 0.0018 |
| 1000 Wh | 0.0036 |
Gigajoule to Watt-hour conversion table
| Gigajoules (GJ) | Watt-hours (Wh) |
|---|---|
| 1 GJ | 277 777.78 |
| 2 GJ | 555 555.56 |
| 3 GJ | 833 333.33 |
| 5 GJ | 1 388 888.9 |
| 10 GJ | 2 777 777.8 |
| 20 GJ | 5 555 555.6 |
| 25 GJ | 6 944 444.4 |
| 50 GJ | 13 888 889 |
| 100 GJ | 27 777 778 |
| 250 GJ | 69 444 444 |
| 500 GJ | 138 888 890 |
| 1000 GJ | 277 777 780 |
Frequently asked
How many gigajoules are in a watt-hour?
One watt-hour equals 0.0000036 gigajoules (Wh → GJ). That figure is exact, not rounded.
How do you convert watt-hours to gigajoules?
Multiply the number of watt-hours by 0.0000036 to get gigajoules.
What is 1 GJ in watt-hours?
One gigajoule is 277777.7778 watt-hours.
What is 10 Wh in GJ?
10 Wh = 0.000 036 GJ.