Joules to Kilojoules Converter

Convert Joules to Kilojoules with this free calculator. Type any value to convert it instantly, or use the conversion table below for common amounts.

Joules and Kilojoules are both units used in the Energy Converter. This page converts between the two, shows the exact conversion factor and gives a table of the values people look up most often.

joules to kj conversion table

Joules	Kilojoules
1 joules	0.001 kj
2 joules	0.002 kj
5 joules	0.005 kj
10 joules	0.01 kj
25 joules	0.025 kj
50 joules	0.05 kj
100 joules	0.1 kj
500 joules	0.5 kj
1,000 joules	1 kj

How it is calculated

Result = value in Joules × 0.001
So 1 joules = 0.001 kj.

Common joules to kj conversions

1 joules = 0.001 kj
5 joules = 0.005 kj
10 joules = 0.01 kj
25 joules = 0.025 kj
50 joules = 0.05 kj
100 joules = 0.1 kj

Related conversions

Other conversions from the same Energy Converter:

joules to calories joules to kcal joules to wh joules to kwh kj to joules kj to calories kj to kcal kj to wh All conversions

Frequently asked questions

How do I convert Joules to Kilojoules?

Multiply the Joules value by 0.001. For example, 10 joules = 0.01 kj.

What is 10 joules in kj?

10 joules equals 0.01 kj.

Is the Joules to Kilojoules converter accurate?

Yes. The conversion uses the internationally defined conversion factor between these units, so the result is exact at the precision shown.