How many nm in 1 km?
The answer is 1.0E+12.
We assume you are converting between nanometre and kilometre.
You can view more details on each measurement unit:
nm or km
The SI base unit for length is the metre.
1 metre is equal to 1000000000 nm, or 0.001 km.
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.
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.
ConvertUnits.com provides an online conversion calculator for all types of measurement units. You can find metric conversion tables for SI units, as well as English units, currency, and other data. Type in unit symbols, abbreviations, or full names for units of length, area, mass, pressure, and other types. Examples include mm, inch, 100 kg, US fluid ounce, 6'3", 10 stone 4, cubic cm, metres squared, grams, moles, feet per second, and many more!