in to mm converter

Convert inches (in) to millimetres (mm). 1 in = 25.4 mm.

Calculating…

Conversion factor

1 in = 25.4 mm · 1 mm = 0.0393701 in

in to mm table

inmm
0.0625 in1.5875 mm
0.125 in3.175 mm
0.25 in6.35 mm
0.375 in9.525 mm
0.5 in12.7 mm
0.625 in15.875 mm
0.75 in19.05 mm
1 in25.4 mm
1.25 in31.75 mm
1.5 in38.1 mm
2 in50.8 mm
2.5 in63.5 mm
3 in76.2 mm
4 in101.6 mm
5 in127 mm
6 in152.4 mm
8 in203.2 mm
10 in254 mm
12 in304.8 mm

1 inch = 25.4 mm exactly. 1 thou (mil) = 0.0254 mm, the common unit for imperial clearances and shim sizes.