1 gigameter (Gm) is 1e+12mm
1,000,000,000,000,000,000 (1018) nanometers (nm) are in 1 gigameter (Gm)
1 cm = 10-11 gigametres
1 gigameter = 1.0 × 1018 nanometers
1 gigameter = 1000 000 000 meter 1 mile = 1609 meter 4 miles = 4 x 1609 meter 1 gigameter > 4 miles
There are 1 000 000 000 meters in 1 Gm.
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A gigameter (or gigametre) is a unit of distance. It is 1 billion (109) metres, or about 621,371 miles.
1012 (1 000 000 000 000)
1 terameter is 1e+21 nanometers.
1 meter=1.0x10^-9 gigameters
1 meter = 1.0 × 10-9 gigameters