Joule to Kilojoule Converter
1 J = 0.001 kJ
1 J = 0.001 kJ
Joule to Kilojoule Table
| Joule (J) | Kilojoule (kJ) |
|---|---|
| 0.01 | 0.00001 |
| 0.1 | 0.0001 |
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 20 | 0.02 |
| 50 | 0.05 |
| 100 | 0.1 |
| 500 | 0.5 |
| 1000 | 1 |
How to Convert Joule to Kilojoule
To convert Joule (J) to Kilojoule (kJ), use the formula: 1 J = 0.001 kJ.
For example, to convert 5 J to kJ: 5 J = 0.005 kJ. Similarly, 10 J = 0.01 kJ, 25 J = 0.025 kJ, and 100 J = 0.1 kJ.
To convert in the other direction, 1 kJ = 1,000 J. Simply enter your value in either field above for instant bi-directional conversion.
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.
What is a Kilojoule?
A kilojoule (kJ) equals 1,000 joules. Kilojoules are used on food labels in Australia, Europe, and many other countries.
Common Joule to Kilojoule Conversions
Here are some frequently looked-up conversions between Joule and Kilojoule:
- 1 J = 0.001 kJ
- 5 J = 0.005 kJ
- 10 J = 0.01 kJ
- 25 J = 0.025 kJ
- 100 J = 0.1 kJ