Kilojoule to Joule Converter

1 kJ = 1,000 J

1 kJ = 1,000 J

Kilojoule to Joule Table

Kilojoule (kJ)Joule (J)
0.0110
0.1100
11,000
22,000
55,000
1010,000
2020,000
5050,000
100100,000
500500,000
10001,000,000

How to Convert Kilojoule to Joule

To convert Kilojoule (kJ) to Joule (J), use the formula: 1 kJ = 1,000 J.

For example, to convert 5 kJ to J: 5 kJ = 5,000 J. Similarly, 10 kJ = 10,000 J, 25 kJ = 25,000 J, and 100 kJ = 100,000 J.

To convert in the other direction, 1 J = 0.001 kJ. Simply enter your value in either field above for instant bi-directional conversion.

What is a Kilojoule?

A kilojoule (kJ) equals 1,000 joules. Kilojoules are used on food labels in Australia, Europe, and many other countries.

What is a Joule?

A joule (J) is the SI unit of energy — the work done by a force of one newton over one meter. Joules are used in physics and engineering for energy calculations.

Common Kilojoule to Joule Conversions

Here are some frequently looked-up conversions between Kilojoule and Joule:

  • 1 kJ = 1,000 J
  • 5 kJ = 5,000 J
  • 10 kJ = 10,000 J
  • 25 kJ = 25,000 J
  • 100 kJ = 100,000 J

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