Energy & Work converter

Megajoule to Gigajoule Converter

Converts megajoule to gigajoule for energy.

Enter value

From

Result

0.001 GJ

1 MJ = 0.001 GJ

Also equals

1,000,000J

1,000kJ

0.277778kWh

239.005736kcal

277.777778Wh

947.816988BTU

737,562.149277ft·lb

Decimals

Need the reverse conversion?Gigajoule to Megajoule Converter

Conversion formula

GJ = MJ × 0.001

1 megajoule equals 0.001 gigajoule.

Megajoule to Gigajoule table

Megajoule (MJ)	Gigajoule (GJ)
0.01	0.00001
0.1	0.0001
1	0.001
2	0.002
3	0.003
5	0.005
10	0.01
20	0.02
50	0.05
100	0.1
1,000	1

About this conversion

This converter uses the displayed definition for megajoule and its recognized relationship to gigajoule. Calculations retain full precision internally, and only the visible result is rounded. You can swap the conversion direction without changing the underlying standard.

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Convert Megajoule to other energy & work units

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Frequently asked questions

How do I convert megajoules to gigajoules?+

Enter the megajoules value in the converter. The result uses the defined factor 0.00100000000000 and is rounded only for display.

Does the converter keep full precision?+

Yes. Calculations retain high precision throughout each step, while the visible result is rounded for readability.

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