How many nanometer in 1 gigametre? The answer is 1.0E+18. We assume you are converting between nanometre and gigametre. You can view more details on each measurement unit: nanometer or gigametre The SI base unit for length is the metre. 1 metre is equal to 1000000000 nanometer, or 1.0E-9 gigametre. Note that rounding errors may occur, so always check the results. Use this page to learn how to convert between nanometres and gigameters. Type in your own numbers in the form to convert the units!
You can do the reverse unit conversion from gigametre to nanometer, or enter any two units below:
The SI prefix "nano" represents a factor of 10-9, or in exponential notation, 1E-9.
So 1 nanometre = 10-9 metre.
A gigametre (American spelling: gigameter, symbol: Gm) is a unit of length equal to 10^9 metres. Its customary equivalent is 621,371 miles.
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