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Gigajoules to Megajoules Conversion

Enter the energy in gigajoules below to get the value converted to megajoules.

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Results in Megajoules:
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1 GJ = 1,000 MJ
Do you want to convert megajoules to gigajoules?

How to Convert Gigajoules to Megajoules

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To convert a gigajoule measurement to a megajoule measurement, multiply the energy by the conversion ratio.

Since one gigajoule is equal to 1,000 megajoules, you can use this simple formula to convert:

megajoules = gigajoules × 1,000

The energy in megajoules is equal to the gigajoules multiplied by 1,000.

For example, here's how to convert 5 gigajoules to megajoules using the formula above.
5 GJ = (5 × 1,000) = 5,000 MJ

How Many Megajoules are in a Gigajoule?

There are 1,000 megajoules in a gigajoule, which is why we use this value in the formula above.

1 GJ = 1,000 MJ

Gigajoules and megajoules are both units used to measure energy. Keep reading to learn more about each unit of measure.

Gigajoules

One gigajoule is equal to 1,000,000,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The gigajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "giga" is the prefix for 109. Gigajoules can be abbreviated as GJ; for example, 1 gigajoule can be written as 1 GJ.

Megajoules

One megajoule is equal to 1,000,000 joules, which are the energy equal to the force on an object of one newton at a distance of one meter.

The megajoule is a multiple of the joule, which is the SI derived unit for energy. In the metric system, "mega" is the prefix for 106. Megajoules can be abbreviated as MJ; for example, 1 megajoule can be written as 1 MJ.

Gigajoule to Megajoule Conversion Table

Gigajoule measurements converted to megajoules
Gigajoules Megajoules
0.001 GJ 1 MJ
0.002 GJ 2 MJ
0.003 GJ 3 MJ
0.004 GJ 4 MJ
0.005 GJ 5 MJ
0.006 GJ 6 MJ
0.007 GJ 7 MJ
0.008 GJ 8 MJ
0.009 GJ 9 MJ
0.01 GJ 10 MJ
0.02 GJ 20 MJ
0.03 GJ 30 MJ
0.04 GJ 40 MJ
0.05 GJ 50 MJ
0.06 GJ 60 MJ
0.07 GJ 70 MJ
0.08 GJ 80 MJ
0.09 GJ 90 MJ
0.1 GJ 100 MJ
0.2 GJ 200 MJ
0.3 GJ 300 MJ
0.4 GJ 400 MJ
0.5 GJ 500 MJ
0.6 GJ 600 MJ
0.7 GJ 700 MJ
0.8 GJ 800 MJ
0.9 GJ 900 MJ
1 GJ 1,000 MJ

More Gigajoule & Megajoule Conversions