Skip to content
Engyna

Convert kilowatt-hours to kilojoules

Convert kilowatt-hours (kWh) to kilojoules (kJ). 1 kWh = 3,600 kJ, and 1 kJ = 0.000277778 kWh.

1 kWh = 3,600 kJ

kWh to kJ formula

kJ = kWh × 3,600

Multiply the number of kilowatt-hours by 3,600.

Example: To convert 1 kWh to kilojoules: 1 × 3,600 = 3,600 kJ.

Quick answers

What is 1 kWh in kilojoules?
1 kWh = 3,600 kJ
What is 100 kWh in kilojoules?
100 kWh = 360,000 kJ
What is 1,000 kWh in kilojoules?
1,000 kWh = 3,600,000 kJ

kWh to kJ conversion table

kJ to kWh table
kilowatt-hours (kWh)kilojoules (kJ)
1 kWh3,600 kJ
2 kWh7,200 kJ
5 kWh18,000 kJ
10 kWh36,000 kJ
20 kWh72,000 kJ
50 kWh180,000 kJ
60 kWh216,000 kJ
75 kWh270,000 kJ
100 kWh360,000 kJ
500 kWh1,800,000 kJ
1,000 kWh3,600,000 kJ
3,000 kWh10,800,000 kJ

Frequently asked questions

How many kilojoules are in a kilowatt-hour?

There are 3,600 kilojoules in a kilowatt-hour (1 kWh = 3,600 kJ).

How do I convert kilowatt-hours to kilojoules?

Multiply the number of kilowatt-hours by 3,600. To convert 1 kWh to kilojoules: 1 × 3,600 = 3,600 kJ.

Is the kWh to kJ conversion exact?

Yes. Both units are defined exactly, so 1 kilowatt-hour is exactly 3,600 kilojoules. 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 kilojoules?

1 kWh = 3,600 kJ.

How do I convert kilojoules back to kilowatt-hours?

Use the reverse relationship: 1 kJ = 0.000277778 kWh. The kJ to kWh page has a converter and a full table.

More energy conversions

All unit conversions