MM to Inches Converter

Type an amount in millimeters to see it in inches and other length units.

Enter the value

Result

25.4 mm =
1 in
25.4 mm in other units
UnitValue
Centimetre (cm)2.54
Metre (m)0.0254
Kilometre (km)0.0000254
Inch (in)1
Foot (ft)0.08333333
Yard (yd)0.02777778
Mile (mi)0.00001578

How to use it

  1. Type the amount.
  2. Check the From and To units, or change them.
  3. Read the result. The table shows the same amount in other units.

About this tool

1 millimeter = 0.03937008 inches, so to convert millimeters to inches, multiply by 0.03937008. To go the other way, 1 inch = 25.4 millimeters.

25.4 mm is exactly one inch, so divide millimeters by 25.4.

Formula

  • inches = millimeters × 0.03937008
  • millimeters = inches × 25.4

mm to in conversion chart

Millimetre (mm) converted to Inch (in)
mmin
0.50.01968504
10.03937008
20.07874016
30.11811024
40.15748032
50.19685039
60.23622047
70.27559055
80.31496063
90.35433071
100.39370079
150.59055118
200.78740157
250.98425197
301.1811
401.5748
501.9685
752.95276
1003.93701
2509.84252
50019.68504
1,00039.37008

in to mm

Inch (in) converted to Millimetre (mm)
inmm
0.512.7
125.4
250.8
376.2
4101.6
5127
6152.4
7177.8
8203.2
9228.6
10254
15381

Examples

  • 1 mm = 0.03937008 in
  • 5 mm = 0.19685039 in
  • 10 mm = 0.39370079 in
  • 50 mm = 1.9685 in
  • 100 mm = 3.93701 in

Tips

  • 25.4 mm is exactly one inch, so divide millimeters by 25.4.
  • Use Swap units to convert the other way.
  • Results are rounded for display. The exact factor is used in the calculation.

Questions and answers

How many inches are in 1 millimeter?

1 millimeter = 0.03937008 inches.

How many millimeters are in 1 inch?

1 inch = 25.4 millimeters.

How do I convert millimeters to inches?

Multiply the number of millimeters by 0.03937008.

Are my numbers saved or sent anywhere?

No. The conversion runs in your browser on your own device. Nothing you type is sent to Paul Digital or any other server.

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Privacy

The conversion runs in your browser on your own device. Nothing you type is sent to Paul Digital or any other server. For work where accuracy matters, such as medicine, engineering or cooking times, check against the official measurement.