Megajoules to Kilojoules Converter
Convert megajoules (MJ) to kilojoules (kJ)
Result
1,000 kJ
Kilojoules
1 MJ = 1,000 kJ
1 MJ in other units
- 1Enter a valueType the number to convert
- 2Pick the unitsChoose what to convert from and to
- 3Read the resultSee it in every other unit too
How to convert megajoules to kilojoules
One megajoule equals 1,000 kilojoules, so multiply the number of megajoules by 1,000.
kJ = MJ × 1,000
1 MJ = 1,000 kJ · 1 kJ = 0.001 MJ
Worked example
To convert 5 megajoules to kilojoules: 5 MJ × 1,000 = 5,000 kJ.
About megajoules (MJ)
A megajoule is 1,000,000 J, used for fuel energy content.
About kilojoules (kJ)
A kilojoule is 1,000 J. Food labels in many countries show energy in kJ alongside kcal.
More conversions
Megajoules to other units
Frequently asked questions
How many kilojoules are in one megajoule?
One megajoule equals 1,000 kilojoules.
How many megajoules are in one kilojoule?
One kilojoule equals 0.001 megajoules.
How do I convert megajoules to kilojoules?
Use the formula kJ = MJ × 1,000. For example, 5 MJ × 1,000 = 5,000 kJ.