ENERGY CONVERSION

Kilojoule to Megajoule.

Convert kilojoule (kJ) to megajoule (MJ), with the math explained.

Energy converter
kJ
0.001MJ
THE RESULT

1 kJ = 0.001 MJ

Calculated in your browserFormula & conversion table

THE MATH, MADE SIMPLE

How to convert kilojoule to megajoule

Multiply your kilojoule value by 0.001 to get the equivalent in megajoule. Both units are normalized through the joule.

CONVERSION FORMULAMJ = kJ × 0.001
WORKED EXAMPLE

10 kJ = 0.01 MJ

Result rounded to 12 significant digits. Change the precision in the calculator to suit your task.

QUICK REFERENCE

kJ to MJ conversion table

Reverse
Kilojoule (kJ)Megajoule (MJ)
1 kJ0.001 MJ
2 kJ0.002 MJ
5 kJ0.005 MJ
10 kJ0.01 MJ
20 kJ0.02 MJ
50 kJ0.05 MJ
100 kJ0.1 MJ
500 kJ0.5 MJ
1,000 kJ1 MJ
kJ

About the kilojoule

The kilojoule (kJ) is a unit of energy. One kilojoule equals 1,000 joule (base unit) in this calculator.

All kilojoule conversions
MJ

About the megajoule

The megajoule (MJ) is a unit of energy. One megajoule equals 1,000,000 joule (base unit) in this calculator.

All megajoule conversions

Common questions

What is 1 kJ in MJ?

One kilojoule equals 0.001 MJ. Use the formula above for other values.

Why might another calculator show a different last digit?

Calculators may round at different stages or use different unit conventions. We keep full JavaScript numeric precision during calculation and round only for display. Choose up to 15 significant digits. Check US versus UK units and the notes for this category.

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