Millimeter To Inch Conversion Chart

Millimeter (mm) Inch (in)
0.01 mm0.00039370078740157485 in
0.1 mm0.003937007874015749 in
1 mm0.03937007874015748 in
2 mm0.07874015748031496 in
5 mm0.1968503937007874 in
10 mm0.3937007874015748 in
20 mm0.7874015748031497 in
50 mm1.968503937007874 in
100 mm3.937007874015748 in
500 mm19.68503937007874 in
1000 mm39.37007874015748 in

Convert from millimeter to inch formula

Total inch =
Total millimeter

For example, if you want to convert 160 millimeter to inch then,

= 6.299212598425197 in

Convert from inch to millimeter formula

Total millimeter = Total inch x 25.4

6.299212598425197 in = 6.299212598425197 x 25.4 = 160 mm


A millimeter is the smallest unit. There are 10 mm in one centimeter, if an object is smaller than one centimeter, you would use millimeters. A scientist measuring something under a magnifying glass might use millimeters to represent a tiny specimen.


The inch (symbol: in) is a unit of length in the (British) imperial and United States customary systems of measurement. Standards for the exact length of an inch have varied in the past, but since the adoption of the international yard during the 1950s and 1960s, it has been based on the metric system and defined as exactly 25.4 mm.