Convert mm to mils
millimeters to mils. Enter a value to convert, or use the mm to mils chart further down the page.
1 millimeter equals 39.3701 mils. Going the other way, 1 mil = 0.0254 millimeters.
How to convert mm to mils
To convert millimeters to mils, multiply the millimeter value by 39.37007874. You can also divide by 0.0254 to get the same answer.
mil = mm × 39.37007874
Worked example
Convert 15 mm to mils:
15 mm = 590.551 mil
mm to mils conversion chart
Use this mm to mils table for quick reference without typing anything.
| millimeters (mm) | mils (mil) |
|---|---|
| 0.01 mm | 0.393701 mil |
| 0.1 mm | 3.93701 mil |
| 1 mm | 39.3701 mil |
| 2 mm | 78.7402 mil |
| 3 mm | 118.11 mil |
| 5 mm | 196.85 mil |
| 10 mm | 393.701 mil |
| 20 mm | 787.402 mil |
| 50 mm | 1,968.5 mil |
| 100 mm | 3,937.01 mil |
| 1,000 mm | 39,370.1 mil |
What is a millimeter?
The millimeter is a metric unit equal to one thousandth of a meter. It is the smallest unit marked on a standard metric ruler and is the working unit of engineering drawings, machining tolerances and rainfall measurement.
What is a mil?
A mil, or thou, is one thousandth of an inch. It is the standard unit for sheet thickness, plating depth and printed-circuit-board trace widths in the US.
Frequently asked questions
How many mils are in a millimeter?
1 mm equals 39.3701 mils. Going the other way, 1 mils is 0.0254 mm.
How do you convert mm to mils?
To convert millimeters to mils, multiply the millimeter value by 39.37007874. You can also divide by 0.0254 to get the same answer.
What is 10 mm in mils?
10 mm equals 393.701 mils. The conversion chart on this page lists the other values people look up most often.
Related length conversions
Convert mm to other units
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- mm to cm
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- mm to km
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- mm to feet
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