Nanometres to Kilometres Converter

Convert nanometres (nm) to kilometres (km) instantly. Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.

Result

Kilometres
1.000000e-12 km

How to use the nanometres to kilometres converter

  1. Enter the nanometres (nm).
  2. The results update as you type, or press Calculate.
  3. Read the kilometres first, then the supporting figures below it.

Formula

Kilometres = nanometres × 1.000000e-12

Worked example

For example, with these inputs:

the calculator returns:

Nanometres to Kilometres table

NanometresKilometres
1 nm1.000000e-12 km
2 nm2.000000e-12 km
5 nm5.000000e-12 km
10 nm1.000000e-11 km
20 nm2.000000e-11 km
25 nm2.500000e-11 km
50 nm5.000000e-11 km
100 nm1.000000e-10 km
250 nm2.500000e-10 km
500 nm5.000000e-10 km
1,000 nm1.000000e-9 km

About this conversion

Length conversions come up when reading overseas furniture specs, cycling the Round Island Route in kilometres while a foreign app shows miles, or checking marine distances in the Singapore Strait in nautical miles.

A conversion table is handy for common values, but a calculator is faster and avoids interpolation errors for anything in between.

Many conversion factors are exact by definition. The inch has been defined as exactly 2.54 centimetres since 1959, and the pound as exactly 0.45359237 kilograms, so conversions involving them can be as precise as you need.

Frequently asked questions

How many kilometres are in one nanometre?

1 nm = 1.000000e-12 km.

How do I convert nm to km?

Kilometres = nanometres × 1.000000e-12.

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