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U.S. Standard
Units to Metric
measurements
conversion

mm to in

This online calculator provides conversion of inches to millimetres


Enter mm or inches for conversion:
    

Select type of conversion:

Digits after decimal point:


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Conversion Table

mm to in conversion
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

Convertion formula
millimetres to inches (mm to in)

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

L(in) = L(mm) / 25.4

Example of conversion

Convert 40 mm to inches:

L(in) = 40 mm / 25.4 = 1.575 in

U.S. Standard
Units to Metric
measurements
conversion





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