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Megameter to Gigameter Converter

Convert megameters (Mm) to gigameters (Gm). 1 Mm = 0.001 Gm.

1 Mm = 0.001 Gm

Gigameter to Megameter converter

How to convert megameters to gigameters

1 megameter is equal to 0.001 gigameters, and 1 gigameter is equal to 1,000 megameters. To convert, multiply by the conversion factor:

gigameters = megameters × 0.001
gigameters = megameters ÷ 1,000

Example: convert 15 Mm to Gm: 15 × 0.001 = 0.015 Gm.

Megameter to Gigameter conversion table

Megameter (Mm)Gigameter (Gm)
0.01 Mm0.00001 Gm
0.1 Mm0.0001 Gm
1 Mm0.001 Gm
2 Mm0.002 Gm
3 Mm0.003 Gm
5 Mm0.005 Gm
10 Mm0.01 Gm
20 Mm0.02 Gm
50 Mm0.05 Gm
100 Mm0.1 Gm
250 Mm0.25 Gm
500 Mm0.5 Gm
1,000 Mm1 Gm

About the megameter

A megameter is one million meters (1,000 km). Earth's radius is about 6.4 Mm.

Symbol: Mm · 1 Mm = 1,000,000 m · Category: Metric (SI)

About the gigameter

A gigameter is one billion meters. The Moon orbits about 0.38 Gm from Earth, and the Sun's diameter is about 1.39 Gm.

Symbol: Gm · 1 Gm = 1,000,000,000 m · Category: Metric (SI)

Frequently asked questions

How many gigameters are in a megameter?

There are 0.001 gigameters in 1 megameter (Mm).

How many megameters are in a gigameter?

1 gigameter (Gm) equals 1,000 megameters.

How do I convert megameters to gigameters?

Multiply the length in megameters by 0.001. For example, 15 Mm × 0.001 = 0.015 Gm.

How do I convert gigameters to megameters?

Divide the length in gigameters by 0.001, or multiply it by 1,000. You can also use the Gigameter to Megameter converter.