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Convert Millimeters to Inches

1 millimeter = 0.03937008 inches. Type any value below to convert in either direction — the calculation happens in your browser.

Millimeters to Inches formula

Multiply the number of millimeters by 0.03937008 to get inches.

inches = millimeters × 0.03937008

To go the other way: divide the number of inches by 0.03937008, or multiply by 25.4.

millimeters = inches ÷ 0.03937008

Millimeters to Inches conversion table

MillimetersInches
1 mm0.03937008 in
2 mm0.07874016 in
3 mm0.1181102 in
4 mm0.1574803 in
5 mm0.1968504 in
6 mm0.2362205 in
7 mm0.2755906 in
8 mm0.3149606 in
9 mm0.3543307 in
10 mm0.3937008 in
15 mm0.5905512 in
20 mm0.7874016 in
25 mm0.984252 in
30 mm1.181102 in
40 mm1.574803 in
50 mm1.968504 in
75 mm2.952756 in
100 mm3.937008 in
250 mm9.84252 in
500 mm19.685039 in
1,000 mm39.370079 in

Inches to Millimeters conversion table

InchesMillimeters
1 in25.4 mm
2 in50.8 mm
3 in76.2 mm
4 in101.6 mm
5 in127 mm
6 in152.4 mm
7 in177.8 mm
8 in203.2 mm
9 in228.6 mm
10 in254 mm

About the millimeter

A millimetre is one thousandth of a metre and is the default unit on engineering drawings and rulers.

About the inch

An inch is exactly 25.4 millimetres and is used for screen sizes, pipe diameters and paper dimensions.

Frequently asked questions

How many inches are in a millimeter?

There are 0.03937008 inches in one millimeter.

How many millimeters are in a inch?

There are 25.4 millimeters in one inch.

Is this conversion exact?

The ratio between the millimeter and the inch is fixed by definition, so the conversion is exact — the figures shown here are rounded for readability only.

What is 10 millimeters in inches?

10 millimeters equals 0.3937008 inches.

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