NiftyRecipe Online energy conversion
MJ/kcal 239.005736 kJ/kcal 0.239006 BTU/kcal 0.252164 kWh/kJ 3600 kWh/MJ 3.6 kcal/MJ 0.004184
MJ / kJ

Megajoule to Kilojoule converter

1 MJ = 1000 kJ

This is the Megajoule to Kilojoule converter. The factor is fixed: 1 MJ = 1000.0 kJ. Open a common amount below, or type any value — only selected amounts are indexed.

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

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
Common conversions
FAQ for MJ → kJ
Reverse factor?

1 kilojoule ≈ 0.001 megajoule.

How much is 1 megajoule in kilojoule?

1000 kilojoule (1 megajoule = 1000 kilojoule).

How many kJ in 1 MJ?

Exactly 1000 kJ. Larger or mixed conversions still follow the fixed chain used by the calculator.

When is MJ more practical than kJ?

For larger totals-process energy, some statistical tables. Food labels usually stay in kJ or kcal.

Manual formula?

kJ = MJ × 1000 (1 MJ = 1000 KJ)

How the Megajoule to Kilojoule converter works

This hub describes the pair, not a single number. Pages like 1, 10 or 100 Megajoule answer exact searches.

NiftyRecipe uses thermochemical energy factors (for example 1 kcal = 4184 J). Results do not change with the time of day.