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Megajoules to Joules

Convert megajoules (MJ) to joules (J). Type in either box; the other updates as you go.

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1 MJ = 1,000,000 J

1 megajoule equals1,000,000 J
1 joule equals0.000001 MJ
FormulaJ = MJ × 1,000,000

How to convert megajoules to joules

To convert megajoules to joules, multiply the number of megajoules by 1,000,000.

J = MJ × 1,000,000

Example

Convert 5 megajoules to joules:

5 MJ × 1,000,000 = 5,000,000 J

Megajoule to joule conversion chart

Megajoules (MJ)Joules (J)
1 MJ1,000,000 J
2 MJ2,000,000 J
3 MJ3,000,000 J
4 MJ4,000,000 J
5 MJ5,000,000 J
6 MJ6,000,000 J
7 MJ7,000,000 J
8 MJ8,000,000 J
9 MJ9,000,000 J
10 MJ10,000,000 J
12 MJ12,000,000 J
15 MJ15,000,000 J
20 MJ20,000,000 J
25 MJ25,000,000 J
30 MJ30,000,000 J
40 MJ40,000,000 J
50 MJ50,000,000 J
60 MJ60,000,000 J
70 MJ70,000,000 J
75 MJ75,000,000 J
80 MJ80,000,000 J
90 MJ90,000,000 J
100 MJ100,000,000 J
150 MJ150,000,000 J
200 MJ200,000,000 J
250 MJ250,000,000 J
500 MJ500,000,000 J
1,000 MJ1,000,000,000 J

Going the other way? See the joules to megajoules chart.

About the units

Megajoule (MJ)

A megajoule is 1,000,000 joules, about the kinetic energy of a one-tonne car at 160 km/h.

Joule (J)

The joule is the SI unit of energy: the work done by a force of one newton over one meter.

Frequently asked questions

How many joules are in a megajoule?

There are 1,000,000 joules in a megajoule.

How many megajoules are in a joule?

There are 0.000001 megajoules in a joule.

How do you convert megajoules to joules?

To convert megajoules to joules, multiply the number of megajoules by 1,000,000.

What is 5 megajoules in joules?

5 megajoules equals 5,000,000 joules.

Convert between joules, calories, kilocalories, kilowatt-hours and BTU. Open the energy converter to see a value in every unit at once.