kWh to MJ converter

1 kWh = 3.6 MJ (exact); 1 MJ = 0.277778 kWh. To convert kWh to MJ, multiply by 3.6.

Conversion formula

1 kWh = 3.6 MJ (exact); 1 MJ = 0.277778 kWh. To convert kWh to MJ, multiply by 3.6.

Conversion table

1 kWh3.6 MJ
2 kWh7.2 MJ
3 kWh10.8 MJ
4 kWh14.4 MJ
5 kWh18 MJ
6 kWh21.6 MJ
7 kWh25.2 MJ
8 kWh28.8 MJ
9 kWh32.4 MJ
10 kWh36 MJ
15 kWh54 MJ
20 kWh72 MJ
25 kWh90 MJ
50 kWh180 MJ
100 kWh360 MJ
1000 kWh3600 MJ

Reverse conversion table

1 MJ0.277778 kWh
2 MJ0.555556 kWh
3 MJ0.833333 kWh
4 MJ1.11111 kWh
5 MJ1.38889 kWh
6 MJ1.66667 kWh
7 MJ1.94444 kWh
8 MJ2.22222 kWh
9 MJ2.5 kWh
10 MJ2.77778 kWh
15 MJ4.16667 kWh
20 MJ5.55556 kWh
25 MJ6.94444 kWh
50 MJ13.8889 kWh
100 MJ27.7778 kWh
1000 MJ277.778 kWh

Key facts

1 kilowatt-hour3.6 MJ (exact)
1 MJ0.277778 kWh
1 kWh3,600,000 J
1 kWh860.421 kcal

Frequently asked questions

How many MJ is 1 kWh?

1 kWh equals exactly 3.6 MJ (3,600,000 J). Multiply kWh by 3.6.

How many joules is 1 kWh?

One kilowatt-hour equals 3,600,000 joules (3.6 megajoules).

Reverse conversion

Printable A4 conversion cheat sheet — see the Downloads page

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