kilojoules to joules
Convert kilojoule to joule — instant, free, with the formula shown.
1 kJ=1000 J
How to convert kilojoule to joule
To convert kilojoule to joule, multiply by 1000:
J = kJ × 1000
For example, 10 kJ × 1000 = 10000 J.
kJ to J conversion table
| kilojoules (kJ) | joules (J) |
|---|---|
| 1 kJ | 1000 J |
| 2 kJ | 2000 J |
| 5 kJ | 5000 J |
| 10 kJ | 10000 J |
| 25 kJ | 25000 J |
| 50 kJ | 50000 J |
| 100 kJ | 100000 J |
| 250 kJ | 250000 J |
| 500 kJ | 500000 J |
| 1000 kJ | 1000000 J |
Other kilojoule conversions
Convert to joule from another unit
kJ to J — frequently asked
How many joules are in 1 kilojoule?
1 kilojoule = 1000 joules (kJ × 1000 = J).
What is the formula to convert kilojoule to joule?
Multiply your kilojoule value by 1000 to get joule.
How do I convert 10 kilojoules to joules?
10 kJ = 10000 J. For 100 kJ the answer is 100000 J. Use the calculator on this page for any other value.