Joules to Kilojoules
Convert joules (J) to kilojoules (kJ) instantly. See the formula, reference table, and common conversions.
Primary conversion
1 joule=0.001kilojoules
1 J = 0.001 kJ
Formula
kilojoules = joules × 0.001
Multiply the number of joules by 0.001 to get the value in kilojoules.
Reference Table
| Joules (J) | Kilojoules (kJ) |
|---|---|
| 1 | 0.001 |
| 2 | 0.002 |
| 5 | 0.005 |
| 10 | 0.01 |
| 25 | 0.025 |
| 50 | 0.05 |
| 100 | 0.1 |
| 250 | 0.25 |
| 500 | 0.5 |
| 1000 | 1 |
Frequently Asked Questions
How many kilojoules are in 1 joule?
1 joule equals 0.001 kilojoules.
How do you convert joules to kilojoules?
Multiply the number of joules by 0.001 to get the value in kilojoules. For example, 10 J = 0.01 kJ.
What is the formula for joules to kilojoules?
kilojoules = joules × 0.001.
How do you convert kilojoules back to joules?
Multiply kilojoules by 1000 to get joules. 1 kJ = 1000 J.