US customary to Metric Units Conversion

mm to in (millimeters to inches) Conversion

This online calculator provides conversion of inches to millimeters

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Conversion Chart

 mm to in Conversion Chart: 0.1 mm = 0.003937 in 1 mm = 0.039 in 2 mm = 0.079 in 3 mm = 0.118 in 4 mm = 0.157 in 5 mm = 0.197 in 6 mm = 0.236 in 7 mm = 0.276 in 8 mm = 0.315 in 9 mm = 0.354 in 10 mm = 0.394 in 11 mm = 0.03937 in 12 mm = 0.4724 in 13 mm = 0.5118 in 14 mm = 0.5512 in 15 mm = 0.5906 in 16 mm = 0.6299 in 17 mm = 0.6693 in 18 mm = 0.7087 in 19 mm = 0.7480 in 20 mm = 0.7874 in 21 mm = 0.8268 in 22 mm = 0.8661 in 23 mm = 0.9055 in 24 mm = 0.9449 in 25 mm = 0.9843 in 26 mm = 1.0236 in 27 mm = 1.0630 in 28 mm = 1.1024 in 29 mm = 1.1417 in 30 mm = 1.181 in 40 mm = 1.575 in 50 mm = 1.969 in

How to convert formula millimeters to inches (mm to in)

1 millimeter is equal to 0.03937007874 inches.
1 inch is equal to 25.4 millimeters.

The length L(in) in inches is equal to the length L(mm) in millimeters divided by 25.4:

L(in) = L(mm) / 25.4

Example of calculation

Convert 20 mm to inches:

L(in) = 20 mm / 25.4 = 0.7874 in

 US customary to Metric Conversion Calculators