Millimeters to Inches Converter
Convert millimeters (mm) to inches (in)
Result
0.03937007874 in
Inches
1 mm = 0.03937007874 in
1 mm in other units
- 1Enter a valueType the number to convert
- 2Pick the unitsChoose what to convert from and to
- 3Read the resultSee it in every other unit too
How to convert millimeters to inches
One millimeter equals 0.03937008 inches, so multiply the number of millimeters by 0.03937008.
in = mm × 0.03937008
1 mm = 0.03937008 in · 1 in = 25.4 mm
Worked example
To convert 5 millimeters to inches: 5 mm × 0.03937008 = 0.1968504 in.
About millimeters (mm)
A millimeter is one thousandth of a metre. Rain, screen sizes and engineering drawings are often measured in millimetres.
About inches (in)
An inch is exactly 2.54 cm. It is used for screen sizes, pipe sizes, and lengths in the US and UK.
More conversions
Millimeters to other units
Frequently asked questions
How many inches are in one millimeter?
One millimeter equals 0.03937008 inches.
How many millimeters are in one inch?
One inch equals 25.4 millimeters.
How do I convert millimeters to inches?
Use the formula in = mm × 0.03937008. For example, 5 mm × 0.03937008 = 0.1968504 in.