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Convert kilowatt-hours to megajoules

Convert kilowatt-hours (kWh) to megajoules (MJ). 1 kWh = 3.6 MJ, and 1 MJ = 0.277778 kWh.

1 kWh = 3.6 MJ

kWh to MJ formula

MJ = kWh × 3.6

Multiply the number of kilowatt-hours by 3.6.

Example: To convert 1 kWh to megajoules: 1 × 3.6 = 3.6 MJ.

Quick answers

What is 1 kWh in megajoules?
1 kWh = 3.6 MJ
What is 100 kWh in megajoules?
100 kWh = 360 MJ
What is 1,000 kWh in megajoules?
1,000 kWh = 3,600 MJ

kWh to MJ conversion table

MJ to kWh table
kilowatt-hours (kWh)megajoules (MJ)
1 kWh3.6 MJ
2 kWh7.2 MJ
5 kWh18 MJ
10 kWh36 MJ
20 kWh72 MJ
50 kWh180 MJ
60 kWh216 MJ
75 kWh270 MJ
100 kWh360 MJ
500 kWh1,800 MJ
1,000 kWh3,600 MJ
3,000 kWh10,800 MJ

Frequently asked questions

How many megajoules are in a kilowatt-hour?

There are 3.6 megajoules in a kilowatt-hour (1 kWh = 3.6 MJ).

How do I convert kilowatt-hours to megajoules?

Multiply the number of kilowatt-hours by 3.6. To convert 1 kWh to megajoules: 1 × 3.6 = 3.6 MJ.

Is the kWh to MJ conversion exact?

Yes. Both units are defined exactly, so 1 kilowatt-hour is exactly 3.6 megajoules. Results on this page are rounded to six significant digits; pick more decimals in the converter if you need them.

What is 1 kWh in megajoules?

1 kWh = 3.6 MJ.

How do I convert megajoules back to kilowatt-hours?

Use the reverse relationship: 1 MJ = 0.277778 kWh. The MJ to kWh page has a converter and a full table.

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