How many nm in 1 kilometer?
The answer is 1000000000000.
We assume you are converting between nanometre and kilometre.
You can view more details on each measurement unit: nm or
kilometer
The SI base unit for length is the metre.
1 metre is equal to 1000000000 nm, or 0.001 kilometer.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between nanometres and kilometres.
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The SI prefix "nano" represents a factor of
10^{-9}, or in exponential notation, 1E-9.

So 1 nanometre = 10^{-9} metre.

››Definition: Kilometer

A kilometre (American spelling: kilometer, symbol: km) is a unit of length equal to 1000 metres (from the Greek words khilia = thousand and metro = count/measure). It is approximately equal to 0.621 miles, 1094 yards or 3281 feet.

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