Joules to Kilojoules Converter
Convert joules (J) to kilojoules (kJ) instantly. Type a value below; the result updates as you type. 1 J = 0.001 kJ.
How to convert joules to kilojoules
1 J = 0.001 kJ. To convert joules to kilojoules, divide the value by 1,000.
kilojoules = joules ÷ 1,000
Worked examples
- 5 J = 0.005 kJ
- 12 J = 0.012 kJ
- 100 J = 0.1 kJ
Common joules to kilojoules conversions
How many kilojoules is 2 J?
2 J is equal to 0.002 kJ.
How many kilojoules is 10 J?
10 J is equal to 0.01 kJ.
How many kilojoules is 20 J?
20 J is equal to 0.02 kJ.
How many kilojoules is 50 J?
50 J is equal to 0.05 kJ.
How many kilojoules is 100 J?
100 J is equal to 0.1 kJ.
How many kilojoules is 500 J?
500 J is equal to 0.5 kJ.
Joules to kilojoules conversion table
| Joules (J) | Kilojoules (kJ) |
|---|---|
| 1 J | 0.001 kJ |
| 2 J | 0.002 kJ |
| 3 J | 0.003 kJ |
| 4 J | 0.004 kJ |
| 5 J | 0.005 kJ |
| 6 J | 0.006 kJ |
| 7 J | 0.007 kJ |
| 8 J | 0.008 kJ |
| 9 J | 0.009 kJ |
| 10 J | 0.01 kJ |
| 15 J | 0.015 kJ |
| 20 J | 0.02 kJ |
| 25 J | 0.025 kJ |
| 30 J | 0.03 kJ |
| 40 J | 0.04 kJ |
| 50 J | 0.05 kJ |
| 75 J | 0.075 kJ |
| 100 J | 0.1 kJ |
| 250 J | 0.25 kJ |
| 500 J | 0.5 kJ |
| 1,000 J | 1 kJ |
Related conversions
Frequently asked questions
How many kilojoules are in 1 joule?
1 joule (J) equals 0.001 kilojoules (kJ).
How do I convert joules to kilojoules?
To convert joules to kilojoules, divide the value by 1,000. For example, 5 J = 0.005 kJ.
How many joules are in 1 kilojoule?
1 kilojoule (kJ) equals 1,000 joules (J).