Free calculators and unit converters for general and everyday use.
Our online tools will provide quick answers to your calculation and conversion needs. On this page, you can convert length values from millimeters to inches and inches to millimeters.
1 inch = 25.4 millimeters
1 millimeter = 0.0393701 inches
The symbols used are mm for millimeter and in for inch.
Convert 4 millimeters to inches
4 mm = 4*0.0393701 in = 0.1574803 in