Gigajoule to Kilowatt-hour Converter

Convert Gigajoule to Kilowatt-hour instantly — live results with exact conversion factors.

From

277.777778 kWh

1 gigajoule = 277.7777778 kilowatt-hours. To convert GJ to kWh, multiply by 277.7777778.

Quick Reference Table

Gigajoule (GJ)	Kilowatt-hour (kWh)
1	277.777778
2	555.555556
5	1388.888889
10	2777.777778
20	5555.555556
50	13888.88889
100	27777.77778
250	69444.44444
500	138888.8889
1000	277777.7778

Formula

Convert Gigajoule (GJ) to Kilowatt-hour (kWh) using the relationship:

kWh = GJ × 277.7777778

How to Convert

Take the value in gigajoules (GJ).
Multiply it by 277.7777778 (the conversion factor from GJ to kWh).
The result is the equivalent value in kilowatt-hours (kWh).
Example: 1 GJ = 277.777778 kWh.

Reverse Conversion

Need it the other direction? Kilowatt-hour to Gigajoule conversion.

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FAQ

▸ How many kilowatt-hours are in 1 gigajoule?

1 Gigajoule equals 277.777778 kilowatt-hours. Multiply by 277.7777778 to convert GJ to kWh.

▸ What is the formula to convert gigajoule to kilowatt-hour?

Multiply the value in gigajoules by 277.7777778 to get kilowatt-hours. Formula: kWh = GJ × 277.7777778.

▸ How do I convert gigajoules to kilowatt-hours easily?

Enter your value in the converter at the top of this page — the kilowatt-hours result updates live as you type. You can also multiply by 277.7777778 directly.

Answer