Inches to millimeters free online conversion

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mm to inches »

How to convert inches to millimeters

1 inch is equal to 25.4 millimeters:

1″ = 25.4mm

The distance d in millimeters (mm) is equal to the distance d in inches (″) times 25.4:

d(mm) = d(″) × 25.4

Example

Convert 20 inches to millimeters:

d(mm) = 20″ × 25.4 = 508mm

Inches to millimeters conversion table

Inches (") Millimeters (mm)
0.01 ″ 0.254000 mm
1/64 ″ 0.396875 mm
1/32 ″ 0.793750 mm
1/16 ″ 1.587500 mm
0.1 ″ 2.540000 mm
1/8 ″ 3.175 mm
1/4 ″ 6.35 mm
1/2 ″ 12.7 mm
1 ″ 25.4 mm
2 ″ 50.8 mm
3 ″ 76.2 mm
4 ″ 101.6 mm
5 ″ 127.0 mm
6 ″ 152.4 mm
7 ″ 177.8 mm
8 ″ 203.2 mm
9 ″ 228.6 mm
10 ″ 254.0 mm
20 ″ 508.0 mm
30 ″ 762.0 mm
40 ″ 1016.0 mm
50 ″ 1270.0 mm
60 ″ 1524.0 mm
70 ″ 1778.0 mm
80 ″ 2032.0 mm
90 ″ 2286.0 mm
100 ″ 2540.0 mm

mm to inches »


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