Convert mm to inches (and inches to mm)

Convert millimeters to inches and inches to millimeters with the exact factor 1 inch = 25.4 mm, for fasteners, tools, wheels and tires.

Millimeters

Inches

Conversion table

mm to in conversion
mm	in
1 mm	0.03937 in
2 mm	0.07874 in
5 mm	0.1969 in
10 mm	0.3937 in
20 mm	0.7874 in
50 mm	1.9685 in
100 mm	3.93701 in
1,000 mm	39.3701 in

in to mm conversion
in	mm
1 in	25.4 mm
2 in	50.8 mm
5 in	127 mm
10 in	254 mm
20 in	508 mm
50 in	1,270 mm
100 in	2,540 mm
1,000 in	25,400 mm