About the Units
gigameter (Gm)
A length unit equal to 10^9 meters.
megameter (Mm)
A length unit equal to 10^6 meters.
Common Conversions
- 1 Gm = 1000.0 Mm
- 0.001 Gm = 1 Mm
Convert from gigameters to megameters
Conversion Information
To convert from gigameters to megameters, multiply by 1000.0
1 Gm = 1000.0 Mm