# Convert 400 nm to mm

## Conversion details

To convert nm to mm use the following formula:
1 nm equals 0.000001 mm
So, to convert 400 nm to mm, multiply 0.000001 by 400 i.e.,
400 nm = 0.000001 * 400 mm = 0.0004 mm
For conversion tables, definitions and more information on the nm and mm units scroll down or use the related nm and mm quick access menus located at the top left side of the page.

nm is the symbol for nanometer
mm is the symbol for millimeter

### From 100000.00 to 4000000.00 nanometers, 40 entries

100000 nm = 0.1 mm
200000 nm = 0.2 mm
300000 nm = 0.3 mm
400000 nm = 0.4 mm
500000 nm = 0.5 mm
600000 nm = 0.6 mm
700000 nm = 0.7 mm
800000 nm = 0.8 mm
900000 nm = 1 mm
1000000 nm = 1 mm
1100000 nm = 1.1 mm
1200000 nm = 1.2 mm
1300000 nm = 1.3 mm
1400000 nm = 1.4 mm
1500000 nm = 1.5 mm
1600000 nm = 1.6 mm
1700000 nm = 1.7 mm
1800000 nm = 1.8 mm
1900000 nm = 2 mm
2000000 nm = 2 mm
2100000 nm = 2.1 mm
2200000 nm = 2.2 mm
2300000 nm = 2.3 mm
2400000 nm = 2.4 mm
2500000 nm = 2.5 mm
2600000 nm = 2.6 mm
2700000 nm = 2.7 mm
2800000 nm = 2.8 mm
2900000 nm = 3 mm
3000000 nm = 3 mm
3100000 nm = 3.1 mm
3200000 nm = 3.2 mm
3300000 nm = 3.3 mm
3400000 nm = 3.4 mm
3500000 nm = 3.5 mm
3600000 nm = 3.6 mm
3700000 nm = 3.7 mm
3800000 nm = 3.8 mm
3900000 nm = 4 mm
4000000 nm = 4 mm
Click here for a list of all conversion tables of nm to other compatible units.

## nanometer

Nanometer is a subdivision of the meter unit. The nano prefix stands for 1E-09 therefore, 1 nanometer = 1E-09 meter units. Meter is a unit of measurement of length. The definition for meter is the following:
1 nanometer is equal to 1.0 × 10-9 meters
The symbol for nanometer is nm

## millimeter

Millimeter is a subdivision of the meter unit. The milli prefix stands for 0.001 therefore, 1 millimeter = 0.001 meter units. Meter is a unit of measurement of length. The definition for meter is the following:
1 millimeter is thousandth (1/1000) of a meter
The symbol for millimeter is mm

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