Kilojoules to Megajoules
Convert kilojoules (kJ) to megajoules (MJ). Type in either box; the other updates as you go.
How to convert kilojoules to megajoules
To convert kilojoules to megajoules, multiply the number of kilojoules by 0.001.
Example
Convert 5 kilojoules to megajoules:
Kilojoule to megajoule conversion chart
| Kilojoules (kJ) | Megajoules (MJ) |
|---|---|
| 1 kJ | 0.001 MJ |
| 2 kJ | 0.002 MJ |
| 3 kJ | 0.003 MJ |
| 4 kJ | 0.004 MJ |
| 5 kJ | 0.005 MJ |
| 6 kJ | 0.006 MJ |
| 7 kJ | 0.007 MJ |
| 8 kJ | 0.008 MJ |
| 9 kJ | 0.009 MJ |
| 10 kJ | 0.01 MJ |
| 12 kJ | 0.012 MJ |
| 15 kJ | 0.015 MJ |
| 20 kJ | 0.02 MJ |
| 25 kJ | 0.025 MJ |
| 30 kJ | 0.03 MJ |
| 40 kJ | 0.04 MJ |
| 50 kJ | 0.05 MJ |
| 60 kJ | 0.06 MJ |
| 70 kJ | 0.07 MJ |
| 75 kJ | 0.075 MJ |
| 80 kJ | 0.08 MJ |
| 90 kJ | 0.09 MJ |
| 100 kJ | 0.1 MJ |
| 150 kJ | 0.15 MJ |
| 200 kJ | 0.2 MJ |
| 250 kJ | 0.25 MJ |
| 500 kJ | 0.5 MJ |
| 1,000 kJ | 1 MJ |
Going the other way? See the megajoules to kilojoules chart.
About the units
Kilojoule (kJ)
A kilojoule is 1,000 joules. Food labels in Australia and Europe give energy in kJ next to kcal.
Megajoule (MJ)
A megajoule is 1,000,000 joules, about the kinetic energy of a one-tonne car at 160 km/h.
Frequently asked questions
How many megajoules are in a kilojoule?
There are 0.001 megajoules in a kilojoule.
How many kilojoules are in a megajoule?
There are 1,000 kilojoules in a megajoule.
How do you convert kilojoules to megajoules?
To convert kilojoules to megajoules, multiply the number of kilojoules by 0.001.
What is 5 kilojoules in megajoules?
5 kilojoules equals 0.005 megajoules.
Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.