NiftyRecipe Online energy conversion
BTU/cal 252.164401 BTU/kcal 0.252164 cal/BTU 0.003966 MJ/kcal 239.005736 cal/kJ 0.004184 kJ/kcal 0.239006
MJ / kJ

1 megajoule in kilojoule

1000 kilojoule

1 MJ = 1000 kJ · factor

Reverse: 1 kilojoule ≈ 0.001 megajoule. Use the reference table for common values.

Enter a value and click Calculate - opens the page with the new result

Common values

kilojoule to megajoule 2 megajoules in kilojoule 5 megajoules in kilojoule 10 megajoules in kilojoule 20 megajoules in kilojoule 25 megajoules in kilojoule 50 megajoules in kilojoule 75 megajoules in kilojoule 100 megajoules in kilojoule 120 megajoules in kilojoule 150 megajoules in kilojoule

Same amount, other units

1 megajoule → kcal 1 megajoule → BTU 1 megajoule → cal 1 megajoule → kWh
Formula: megajoule to kilojoule

kJ = MJ × 1000 (1 MJ = 1000 KJ)

Reference values: megajoule → kilojoule
MJ kJ
1 MJ 1000 kJ
100 MJ 100000 kJ
200 MJ 200000 kJ
500 MJ 500000 kJ
1000 MJ 1000000 kJ
2000 MJ 2000000 kJ

All amounts for this pair

FAQ for MJ → kJ
1 megajoule in kilojoule

NiftyRecipe converts 1 megajoule to 1000 kilojoule with a fixed SI-linked factor.

Kilojoules and megajoules describe energy on a scientific scale. The ratio applied here is 1 megajoule = 1000 kilojoule, so this amount is 1000 kilojoule. Reverse check: 1 kilojoule ≈ 0.001 megajoule. That helps when a lab notebook or spreadsheet only lists one column.

Change the value in the calculator for homework, datasheets or rough process estimates. The wording stays technical on purpose so these pages read differently from food-label articles on the same site.