The Unit Converters

Millimeter to Mil

1 Millimeter = 39.3701 Mil


Conversion Formula

To convert Millimeter to Mil, multiply the value by 39.3701.

Millimeter × 39.3701 = Mil

Quick Reference

mm mil
1 39.3701
5 196.85
10 393.701
25 984.252
50 1968.5
100 3937.01
500 19685
1000 39370.1

What is Millimeter?

The millimeter (symbol: mm) is a unit of length in the International System of Units (SI).

It is a metric unit that is equal to one-thousandth of a meter (0.001 m). It is commonly used for very small distances or thickness, such as the thickness of a credit card or the diameter of a small wire.

Common Uses

The millimeter is widely used in engineering, manufacturing, and design where precision is required. It is also the standard unit for measuring rainfall in many countries.

What is Mil?

A mil (also known as a thou) is a unit of length equal to 0.001 inches (1/1000th of an inch).

One mil is approximately equal to 0.0254 mm.

Common Uses

Mils are widely used in engineering and manufacturing to specify the thickness of materials (like plastic films, paper, and gold leaf) and the tolerances of machined parts. In electronics, it is the standard unit for designing Printed Circuit Boards (PCBs).

How many mil are in a millimeter?

There are 39.3701 mil in 1 millimeter.


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