Skip to content
UUTOOLS.NET

Theme

Colours

Millimeters to Inches Converter

1 mm = 0.03937007874 in. Type any value to convert millimeters to inches.

1 mm = 0.03937007874 in

Formula: in = mm ÷ 25.4

Common values
Decimals
In every unit 22 units
Nanometer (nm) 1,000,000 nm
Micrometer (µm) 1,000 µm
Millimeter (mm) 1 mm
Centimeter (cm) 0.1 cm
Decimeter (dm) 0.01 dm
Meter (m) 0.001 m
Kilometer (km) 0.000001 km
Inch (in) 0.03937007874 in
Foot (ft) 0.003280839895 ft
Yard (yd) 0.001093613298 yd
Mile (mi) 6.213711922 × 10⁻⁷ mi
Nautical mile (nmi) 5.399568035 × 10⁻⁷ nmi
Mil (thou) (mil) 39.37007874 mil
Hand (hh) 0.009842519685 hh
Fathom (ftm) 0.0005468066492 ftm
Chain (ch) 0.00004970969538 ch
Furlong (fur) 0.000004970969538 fur
League (lea) 2.071237307 × 10⁻⁷ lea
Ångström (Å) 10,000,000 Å
Astronomical unit (au) 6.684587122 × 10⁻¹⁵ au
Light-year (ly) 1.057000834 × 10⁻¹⁹ ly
Parsec (pc) 3.240779289 × 10⁻²⁰ pc

Convert on our server?

If you continue, the file is uploaded over an encrypted connection and converted on our server. You can keep using the site meanwhile. The original is deleted as soon as it is converted; the result is kept for 6 hours so you can download it, and you can delete it at any time. Files are never shared or used for anything else.

Calculated in your browser – nothing you type is sent anywhere. Privacy details

Millimeters to inches table

Formula: in = mm ÷ 25.4

Millimeter (mm)Inch (in)
0.1 mm0.003937007874 in
0.25 mm0.009842519685 in
0.5 mm0.01968503937 in
1 mm0.03937007874 in
2 mm0.07874015748 in
3 mm0.1181102362 in
4 mm0.157480315 in
5 mm0.1968503937 in
6 mm0.2362204724 in
7 mm0.2755905512 in
8 mm0.3149606299 in
9 mm0.3543307087 in
10 mm0.3937007874 in
12 mm0.4724409449 in
15 mm0.5905511811 in
20 mm0.7874015748 in
25 mm0.9842519685 in
30 mm1.181102362 in
40 mm1.57480315 in
50 mm1.968503937 in
60 mm2.362204724 in
75 mm2.952755906 in
100 mm3.937007874 in
150 mm5.905511811 in
200 mm7.874015748 in
250 mm9.842519685 in
500 mm19.68503937 in
1,000 mm39.37007874 in

How to use: Millimeters to Inches

  1. 1 Type the value in millimeters.
  2. 2 The result in inches appears at once – or type in the inches field to convert back.
  3. 3 Pick a common value, round to fewer decimals or swap the units with one click.
  4. 4 Copy the result, or open “In every unit” to see the value in all units of length.

About this tool

Millimeter (mm) is a unit of length (SI); 1 mm = 0.001 m. Inch (in) is a unit of length (imperial and US customary); 1 in = 0.0254 m.

To convert millimeters to inches, divide the value by 25.4 (in = mm ÷ 25.4). Example: 10 mm = 0.3937007874 in.

Calculated in your browser – nothing you type is sent anywhere.

Frequently asked questions

How do I convert millimeters to inches?

To convert millimeters to inches, divide the value by 25.4: in = mm ÷ 25.4. For example 10 mm = 0.3937007874 in.

What is 1 mm in inches?

1 mm = 0.03937007874 in. The other way round, 1 in = 25.4 mm.

How exact is the result?

The converter uses the official definitions of both units and shows up to 10 significant digits; choose 0–6 decimals to round. Both units are defined exactly in terms of each other, so the factor itself is exact.

Can I convert other units of length here?

Yes – choose any of the 22 units of length in the From and To lists, or switch to another measurement at the top.

Related tools