Kilojoules to Joules
Convert kilojoules to joules — type a value in either box for an instant result.
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Joules
1 kJ = 1000 J · multiply by 1000
| Kilojoules | Joules |
|---|---|
| 1 kJ | 1000 J |
| 2 kJ | 2000 J |
| 3 kJ | 3000 J |
| 5 kJ | 5000 J |
| 10 kJ | 10000 J |
| 25 kJ | 25000 J |
| 50 kJ | 50000 J |
| 100 kJ | 100000 J |
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 joules are in a kilojoule?
1 kJ = 1000 J.
Is this converter free?
Yes — it runs instantly in your browser, with no signup.
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