Convert 1 Gram per Square Meter to Gigagram per Square Kilometer

1 g/m² (Gram per Square Meter) is equal to 0.001 Gg/km² (Gigagram per Square Kilometer). To convert from Gram per Square Meter to Gigagram per Square Kilometer, multiply by 0.001 or divide by 1,000.

• 1 g/m² × 0.001 = 0.001 Gg/km²
• 1 g/m² ÷ 1000 = 0.001 Gg/km²