ENERGY CONVERSION

Megajoule to Joule.

Convert megajoule (MJ) to joule (J), with the math explained.

Energy converter
MJ
1,000,000J
THE RESULT

1 MJ = 1,000,000 J

Calculated in your browserFormula & conversion table

THE MATH, MADE SIMPLE

How to convert megajoule to joule

Multiply your megajoule value by 1,000,000 to get the equivalent in joule. Both units are normalized through the joule.

CONVERSION FORMULAJ = MJ × 1,000,000
WORKED EXAMPLE

10 MJ = 10,000,000 J

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

QUICK REFERENCE

MJ to J conversion table

Reverse
Megajoule (MJ)Joule (J)
1 MJ1,000,000 J
2 MJ2,000,000 J
5 MJ5,000,000 J
10 MJ10,000,000 J
20 MJ20,000,000 J
50 MJ50,000,000 J
100 MJ100,000,000 J
500 MJ500,000,000 J
1,000 MJ1,000,000,000 J
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
J

About the joule

The joule (J) is a unit of energy. One joule equals 1 joule (base unit) in this calculator.

All joule conversions

Common questions

What is 1 MJ in J?

One megajoule equals 1,000,000 J. 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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