Joules to Kilojoules
Convert joules to kilojoules — type a value in either box for an instant result.
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Kilojoules
1 J = 0.001 kJ · multiply by 0.001
| Joules | Kilojoules |
|---|---|
| 1 J | 0.001 kJ |
| 2 J | 0.002 kJ |
| 3 J | 0.003 kJ |
| 5 J | 0.005 kJ |
| 10 J | 0.01 kJ |
| 25 J | 0.025 kJ |
| 50 J | 0.05 kJ |
| 100 J | 0.1 kJ |
How to use
- Type a value in either field.
- The other unit updates instantly.
- Use the reference table for common values.
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FAQ
How many kilojoules are in a joule?
1 J = 0.001 kJ.
Is this converter free?
Yes — it runs instantly in your browser, with no signup.
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