Joules to Kilojoules Converter

Convert joules to kilojoules (J to kJ) instantly with our free online converter. Accurate results with decimal precision.

J
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kJ

How to convert joules to kilojoules?

To convert joules to kilojoules, you can use the following conversion factor: **1 joule = 0.001 kilojoules**, divide the number of joules by 1000.

E(kJ) = E(J) ÷ 1000

Example

Convert 1000 J to kilojoules:

E(kJ) = 1000J ÷ 1000 = 1kJ

How many kilojoules in a joule?

There are 0.001 kilojoules in one joule.

1J = 0.001kJ

1J = 0.001kJ

How many joules in a kilojoule?

There are 1000 joules in one kilojoule.

1kJ = 1000J

1kJ = 1000J

What is a Kilojoule?

A kilojoule is a unit of energy equal to 1000 joules. It is commonly used in nutrition and physics for measuring energy content in food and various energy processes.

Popular joules to kilojoules conversion table

Joules (J)Kilojoules (kJ)
1 J0.001 kJ
10 J0.01 kJ
100 J0.1 kJ
500 J0.5 kJ
1000 J1 kJ
2000 J2 kJ
5000 J5 kJ
10000 J10 kJ
50000 J50 kJ
100000 J100 kJ
1000000 J1000 kJ