Nanometer to Millimeter Converter

Length Converter

31 units available

Decimals:

From

To

1.000000e-6

1 nm = 1.000000e-6 mm

Formula:

mm = nm × 0.000001

With your value: 1 nm = 1.000000e-6 mm

How big is that?

Everyday references on a logarithmic scale, all expressed in nanometer so you can sanity-check the result.

Your value1.00 nm

Grain of sand (5.0e+5× your value)5.00e+5 nm

Credit card (long side) (8.6e+7× your value)8.56e+7 nm

A4 sheet (height) (3.0e+8× your value)2.97e+8 nm

Adult stride (7.5e+8× your value)7.50e+8 nm

Standard door height (2.0e+9× your value)2.00e+9 nm

Other Nanometer to Millimeter conversions

2 nm to mm 3 nm to mm 4 nm to mm 5 nm to mm 6 nm to mm 7 nm to mm 8 nm to mm

Nanometer to Millimeter Conversion Table

Nanometer (nm)	Millimeter (mm)
0.5	5.000000e-7
1	1.000000e-6
2	2.000000e-6
5	5.000000e-6
10	1.000000e-5
15	1.500000e-5
20	2.000000e-5
25	2.500000e-5
50	5.000000e-5
100	0.0001
250	0.00025
500	0.0005
1000	0.001

Millimeter to Nanometer Conversion Table

Millimeter (mm)	Nanometer (nm)
0.5	500,000
1	1,000,000
2	2,000,000
5	5,000,000
10	10,000,000
15	15,000,000
20	20,000,000
25	25,000,000
50	50,000,000
100	100,000,000
250	250,000,000
500	500,000,000
1000	1,000,000,000

Where these values come from

Every factor on this page is traced to the document that defines it. See the full provenance dataset or our methodology.

Nanometer (nm)

Length

Exact conversion

Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

Millimeter (mm)

Length

Exact conversion

Traceable to the metre, defined by fixing the speed of light in vacuum at 299 792 458 m/s. Imperial lengths derive from the 1959 international yard (0.9144 m exactly).

Source: BIPM, The International System of Units (SI), 9th edition, 2019 (updated 2024)

Bureau International des Poids et Mesures · Reviewed 2026-07-01

How to Convert Nanometer to Millimeter

To convert from Nanometer (nm) to Millimeter (mm), multiply the value by 1.000000e-6.

Formula: mm = nm × 0.000001

Reverse: nm = mm × 1,000,000

Step-by-Step Example

Start with your value in Nanometer. For example: 5 nm
Multiply by the conversion factor: 5 x 1.000000e-6
The result is: 5.000000e-6 mm

About Nanometer

The nanometre equals one billionth of a metre and is the standard scale for wavelengths of light and semiconductor process nodes.

Common uses: optics, chip manufacturing, nanotechnology.

About Millimeter

The millimeter equals one thousandth of a meter and is used for precise measurements in engineering and manufacturing.

Common uses: engineering, rainfall measurement, manufacturing.

Frequently Asked Questions

How many Millimeter are in 1 Nanometer?

There are exactly 1.000000e-6 Millimeter in 1 Nanometer. This means the conversion factor from Nanometer to Millimeter is 1.000000e-6.

What is the formula to convert Nanometer to Millimeter?

The formula to convert Nanometer to Millimeter is: mm = nm × 0.000001. For example, to convert 10 Nanometer to Millimeter, you would multiply 10 by 1.000000e-6.

What is a Nanometer?