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Mil to Micron Converter

Convert mils (mil) to microns (µ). 1 mil = 25.4 µ.

1 mil = 25.4 µ

Micron to Mil converter

How to convert mils to microns

1 mil is equal to 25.4 microns, and 1 micron is equal to 0.03937007874 mils. To convert, multiply by the conversion factor:

microns = mils × 25.4
microns = mils ÷ 0.03937007874

Example: convert 15 mil to µ: 15 × 25.4 = 381 µ.

Mil to Micron conversion table

Mil (mil)Micron (µ)
0.01 mil0.254 µ
0.1 mil2.54 µ
1 mil25.4 µ
2 mil50.8 µ
3 mil76.2 µ
5 mil127 µ
10 mil254 µ
20 mil508 µ
50 mil1,270 µ
100 mil2,540 µ
250 mil6,350 µ
500 mil12,700 µ
1,000 mil25,400 µ

About the mil

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

About the micron

The micron is the older name for the micrometer (one millionth of a meter). It's still common in filtration, semiconductor manufacturing and particle sizes.

Symbol: µ · 1 µ = 0.000001 m · Category: Metric (SI)

Frequently asked questions

How many microns are in a mil?

There are 25.4 microns in 1 mil (mil).

How many mils are in a micron?

1 micron (µ) equals 0.03937007874 mils.

How do I convert mils to microns?

Multiply the length in mils by 25.4. For example, 15 mil × 25.4 = 381 µ.

How do I convert microns to mils?

Divide the length in microns by 25.4, or multiply it by 0.03937007874. You can also use the Micron to Mil converter.