Convert joules to kilojoules

Joules to kilojoules. Enter a value to convert, or use the joules to kilojoules chart further down the page.

1 J = 0.001 kJ

1 joule equals 0.001 kilojoules. Going the other way, 1 kilojoule = 1,000 joules.

How to convert joules to kilojoules

To convert joules to kilojoules, multiply the joule value by 0.001. You can also divide by 1000 to get the same answer.

kJ = J × 0.001

Convert 15 J to kilojoules:

15 J = 0.015 kJ

Use this joules to kilojoules table for quick reference without typing anything.

The joule is the SI unit of energy: the work done by a force of one newton acting over one meter.

The kilojoule is 1,000 joules and is the food-energy unit on nutrition labels outside the United States.

How many kilojoules are in a joule?

1 joules equals 0.001 kilojoules. Going the other way, 1 kilojoules is 1,000 joules.

How do you convert joules to kilojoules?

To convert joules to kilojoules, multiply the joule value by 0.001. You can also divide by 1000 to get the same answer.

What is 10 joules in kilojoules?

10 joules equals 0.01 kilojoules. The conversion chart on this page lists the other values people look up most often.