Watt-hours to Gigajoules Converter

1 watt-hour (Wh) equals 0.0000036 gigajoules (GJ).

Quick answer

  • 1 watt-hour = 0.0000036 gigajoules
  • 1 gigajoule = 277,777.7778 watt-hours
  • Formula: GJ = Wh × 0.0000036

1 watt-hour = 0.0000036 gigajoules

How to convert watt-hours to gigajoules

GJ = Wh × 0.0000036

To convert watt-hours to gigajoules, multiply the number of watt-hours by 0.0000036.

Example: 10 Wh to GJ

  1. Start with the value in watt-hours: 10 Wh.
  2. Multiply by 0.0000036: 10 × 0.0000036 = 0.000036.
  3. Result: 10 watt-hours = 0.000036 gigajoules.

Going the other way, 1 gigajoule = 277,777.777778 watt-hours, so to convert gigajoules back to watt-hours you divide by the same number. See gigajoules to watt-hours.

Watt-hours to gigajoules conversion table

Watt-hours (Wh)Gigajoules (GJ)
0.5 Wh 0.0000018 GJ
1 Wh 0.0000036 GJ
2 Wh 0.0000072 GJ
3 Wh 0.0000108 GJ
4 Wh 0.0000144 GJ
5 Wh 0.000018 GJ
6 Wh 0.0000216 GJ
7 Wh 0.0000252 GJ
8 Wh 0.0000288 GJ
9 Wh 0.0000324 GJ
10 Wh 0.000036 GJ
11 Wh 0.0000396 GJ
12 Wh 0.0000432 GJ
13 Wh 0.0000468 GJ
14 Wh 0.0000504 GJ
15 Wh 0.000054 GJ
16 Wh 0.0000576 GJ
17 Wh 0.0000612 GJ
18 Wh 0.0000648 GJ
19 Wh 0.0000684 GJ
20 Wh 0.000072 GJ
25 Wh 0.00009 GJ
30 Wh 0.000108 GJ
40 Wh 0.000144 GJ
50 Wh 0.00018 GJ
75 Wh 0.00027 GJ
100 Wh 0.00036 GJ
250 Wh 0.0009 GJ
500 Wh 0.0018 GJ
1,000 Wh 0.0036 GJ

What is a watt-hour?

The watt-hour is the energy of one watt for one hour, 3,600 J.

More about watt-hours →

What is a gigajoule?

The gigajoule is a billion joules. Natural gas is priced per GJ in Canada, and a ton of TNT releases about 4.2 GJ.

More about gigajoules →

Convert watt-hours to other units

Convert other units to gigajoules

Frequently asked questions

How many gigajoules are in a watt-hour?

One watt-hour is 0.0000036 gigajoules.

How many watt-hours are in a gigajoule?

One gigajoule is 277,777.7778 watt-hours.

What is the formula to convert watt-hours to gigajoules?

GJ = Wh × 0.0000036.