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Mm to Inches Converter (Millimeters to Inches)

1 millimeter = 0.03937007874 inches. To convert mm to in, multiply by 0.03937007874, or divide by 25.4.

⇄

100 mm = 3.937 in

1 mm
0.03937 in
1 in
25.4 mm
10 mm
0.3937 in
100 mm
3.937 in

How to convert mm to Inches

1 millimeter equals 0.03937007874 inches, so the conversion is a single multiplication.

in = mm × 0.03937007874

Example: 150 mm × 0.03937007874 = 5.906 in.

About the millimeter and the inch

Millimeter (mm)

A millimeter is one thousandth of a meter, the unit used on rulers, tools and technical drawings.

Inch (in)

The inch has been exactly 2.54 cm since the 1959 international yard and pound agreement. In the US it's used for screens, lumber, tire sizes and height.

1 millimeter in every length unit

Centimeters0.1 cmInches0.03937 in
Meters0.001 m
Feet0.003281 ft
Kilometers0.000001 km
Miles6.214e-7 mi
Yards0.001094 yd
Nautical Miles5.4e-7 nmi
Micrometers1,000 µm
Nanometers1,000,000 nm
Mils39.37 mil
Hands0.009843 hh
Fathoms0.0005468 ftm
Rods0.0001988 rd
Chains0.00004971 ch
Furlongs0.000004971 fur
Astronomical Units6.685e-15 au
Light-Years1.057e-19 ly
Inches to mmReverse conversioncm to Inches1 cm = 0.3937 inInches to cm1 in = 2.54 cmInches to Feet1 in = 0.08333 ftFeet to Inches1 ft = 12 incm to mm1 cm = 10 mmmm to cm1 mm = 0.1 cmMeters to Inches1 m = 39.3701 inInches to Meters1 in = 0.0254 mmm to Feet1 mm = 0.003281 ftFeet to mm1 ft = 304.8 mm

Quick answers

100 mm to Inches= 3.94 in10 mm to Inches= 0.3937 in5 mm to Inches= 0.1969 in

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mm to Inches FAQ

How many inches are in a millimeter?

1 millimeter = 0.03937007874 inches.

How many millimeters are in a inch?

1 inch = 25.4 millimeters.

How do I convert mm to in?

Use in = mm × 0.03937007874. For example, 10 mm = 0.3937 in.

Can I print this mm to Inches chart?

Yes. Use "Print / Save PDF" next to the converter for a one-page chart, or "Download CSV" to open it in Excel or Google Sheets.