Mil to Microinch Converter (mil to µin)

How to convert mils to microinches

1 mil is equal to 1,000 microinches, and 1 microinch is equal to 0.001 mils. To convert, multiply by the conversion factor:

microinches = mils × 1,000
microinches = mils ÷ 0.001

Example: convert 15 mil to µin: 15 × 1,000 = 15,000 µin.

The mil (or thou) is one thousandth of an inch (25.4 µm). It's used for wire diameters, plastic sheet thickness and circuit board tracks.

Symbol: mil · 1 mil = 0.0000254 m · Category: Imperial & US customary

A microinch is one millionth of an inch (25.4 nm). It's used to specify surface roughness in machining.

Symbol: µin · 1 µin = 2.54 × 10⁻⁸ m · Category: Imperial & US customary

Frequently asked questions

How many microinches are in a mil?

There are 1,000 microinches in 1 mil (mil).

How many mils are in a microinch?

1 microinch (µin) equals 0.001 mils.

How do I convert mils to microinches?

Multiply the length in mils by 1,000. For example, 15 mil × 1,000 = 15,000 µin.

How do I convert microinches to mils?

Divide the length in microinches by 1,000, or multiply it by 0.001. You can also use the Microinch to Mil converter.