Convert megajoules to kilojoules
1 MJ = 1000 kJ — exactly. Both units are defined against the SI, so this factor is a fraction, not an approximation.
1000kJ
1 MJ = 1000 kJ
How to convert megajoules to kilojoules
Multiply the number of megajoules by 1000 to get kilojoules.
The exact factor is 1000 .
Megajoule to Kilojoule conversion table
| Megajoules (MJ) | Kilojoules (kJ) |
|---|---|
| 1 MJ | 1000 |
| 2 MJ | 2000 |
| 3 MJ | 3000 |
| 5 MJ | 5000 |
| 10 MJ | 10 000 |
| 20 MJ | 20 000 |
| 25 MJ | 25 000 |
| 50 MJ | 50 000 |
| 100 MJ | 100 000 |
| 250 MJ | 250 000 |
| 500 MJ | 500 000 |
| 1000 MJ | 1 000 000 |
Kilojoule to Megajoule conversion table
| Kilojoules (kJ) | Megajoules (MJ) |
|---|---|
| 1 kJ | 0.001 |
| 2 kJ | 0.002 |
| 3 kJ | 0.003 |
| 5 kJ | 0.005 |
| 10 kJ | 0.01 |
| 20 kJ | 0.02 |
| 25 kJ | 0.025 |
| 50 kJ | 0.05 |
| 100 kJ | 0.1 |
| 250 kJ | 0.25 |
| 500 kJ | 0.5 |
| 1000 kJ | 1 |
Frequently asked
How many kilojoules are in a megajoule?
One megajoule equals 1000 kilojoules (MJ → kJ). That figure is exact, not rounded.
How do you convert megajoules to kilojoules?
Multiply the number of megajoules by 1000 to get kilojoules.
What is 1 kJ in megajoules?
One kilojoule is 0.001 megajoules.
What is 10 MJ in kJ?
10 MJ = 10 000 kJ.