Joules to Kilojoules Conversion

Enter Joule
Enter Kilojoule

How to convert joules to kilojoules?

1 Joule (J) is equal to 0.001 kilojoule (kJ). To convert joules to kilojoules, multiply the joule value by 0.001 or divide by 1000.

For example, to convert 100 J to kJ, divide 100 by 1000, that makes 0.1 kJ is 100 J.

J to kJ formula

kJ = J * 0.001

kJ = J / 1000

1 Joule = 0.001 Kilojoule

What is a Joule?

Joule is a metric system energy unit. 1 J = 0.001 kJ. The symbol is "J".

Please visit energy and work units conversion to convert all energy and work units.

Create Conversion Table
Click "Create Table". Enter a "Start" value (5, 100 etc). Select an "Increment" value (0.01, 5 etc) and select "Accuracy" to round the result.