Nanometers to Millimeters Converter

Use this converter to easily convert between Nanometers and Millimeters (nm to mm).

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    Quick navigation:
  1. How many Nanometer in a Millimeter?
  2. Difference between Nanometers and Millimeters
  3. How to convert Nanometers to Millimeters
  4. nm to mm conversion table

    How many Nanometer in a Millimeter?

Nanometers and millimeters are metric units used to measure length. The official abbreviations established by the International System of Units (SI) are nm and mm respectively. One nanometer is equal to 1 x 10-6 mm, which means that in 1 millimeter there are 1,000,000 nm.

    Difference between Nanometers and Millimeters

Both nano- and millimeters are derived from the basic unit of length in the metric system – the meter. They are much smaller in scale and are therefore applied in situations that call for greater accuracy.

Nanometers are one-billionth the size of a meter. In the past the unit was referred to as millimicrometer, or millimicron for short. The nm is in use when measuring atomic-scale sizes. For example ribosomes’ diameter is about 20 nm, whereas that of a helium atom is close to 0.1 nm.

Today, the prefix ‘nano’ is also used as an indication of the sphere of work of specific science branches. Nanotechnology for instance is concerned with manipulating matter at an atomic level.

The millimeter, on the other hand, is only 0.001 the size of a meter. It is defined as being equivalent to the distance that light travels in vacuum in 1/299,792,458,000 of a second. The mm is a much more used as a unit in everyday practice. Typically, the smallest division on most rulers is a millimeter.

The wavelength of microwave ovens with a frequency of 300 GHz is 1 mm. Such wavelengths can transfer data of up to 10 gigabits/second.

    How to convert Nanometers to Millimeters

In order to convert nanometers to millimeters you can either use this formula:

nm / 1,000,000 = mm,

or just shift the decimal point in the nm 6 places to the left.

Nm to mm conversion example

Sample task: convert 500 nanometers to millimeters. Solution:

nm / 1000000 = mm
500 nm / 1,000,000 = 0.0005 mm
End result:
500 nm is equal to 0.0005 mm

    nm to mm conversion table

nm to mm conversion table
nm mm
1 nm 0.000001 mm
2 nm 0.000002 mm
3 nm 0.000003 mm
4 nm 0.000004 mm
5 nm 0.000005 mm
6 nm 0.000006 mm
7 nm 0.000007 mm
8 nm 0.000008 mm
9 nm 0.000009 mm
10 nm 0.000010 mm
20 nm 0.000020 mm
30 nm 0.000030 mm
40 nm 0.000040 mm
50 nm 0.000050 mm
60 nm 0.000060 mm
70 nm 0.000070 mm
80 nm 0.000080 mm
90 nm 0.000090 mm
100 nm 0.000100 mm
200 nm 0.000200 mm
300 nm 0.000300 mm
400 nm 0.000400 mm
500 nm 0.000500 mm
600 nm 0.000600 mm
700 nm 0.000700 mm
800 nm 0.000800 mm
900 nm 0.000900 mm
1,000 nm 0.001000 mm


1 NIST Special Publication 330 (2008) - "The International System of Units (SI)", edited by Barry N.Taylor and Ambler Thompson

2 International Organization for Standardization (1993). ISO Standards Handbook: Quantities and units (3rd edition). Geneva: ISO. ISBN 92-67-10185-4.

Cite this converter & page

If you'd like to cite this online converter resource and information as provided on the page, you can use the following citation:
Georgiev G.Z., "Nm to mm Converter", [online] Available at: URL [Accessed Date: 29 May, 2023].