Convert 1 Gigameter to Megameter

1 Gm (Gigameter) is equal to 999.9999999999999 Mm (Megameter). To convert from Gigameter to Megameter, multiply by 1,000 or divide by 0.001.

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