Convert 1 Megameter to Gigameter

1 Mm (Megameter) is equal to 0.001 Gm (Gigameter). To convert from Megameter to Gigameter, multiply by 0.001 or divide by 999.9999999999999.

• 1 Mm × 0.001 = 0.001 Gm
• 1 Mm ÷ 1000 = 0.001 Gm