Millimeter to Inch Converter

1 Millimeter = 0.03937008 Inches. To convert Millimeters to Inches, multiply by 0.03937008.

Result updates as you type
Recent: 1 Millimeter = 0.03937008 Inch

Formula

To convert Millimeters to Inches, multiply the value by 0.03937008. One Millimeter equals 0.03937008 Inches.

in = mm × 0.03937008

For a quick mental estimate, multiply Millimeters by about 0.04 — the exact factor is 0.03937008.

Worked examples

  • 1 Millimeter = 0.03937008 Inches
  • 5 Millimeters = 0.19685039 Inches
  • 10 Millimeters = 0.39370079 Inches
  • 100 Millimeters = 3.937 Inches

Millimeters to Inches table

Millimeters (mm) Inches (in)
1 0.03937008
2 0.07874016
3 0.11811024
4 0.15748031
5 0.19685039
10 0.39370079
25 0.98425197
50 1.9685
100 3.937
250 9.8425
500 19.685
1000 39.3701

About Millimeter and Inch

Both the Millimeter (mm) and the Inch (in) measure length. One Millimeter is equal to 0.03937008 Inches, so you can convert any measurement by multiplying by 0.03937008. The calculator above updates instantly, and the reference table lists common Millimeter-to-Inch values for quick lookups.

Unit definitions

Millimeter (mm)
The Millimeter (mm) is a unit of length equal to 0.001 Meters.
Inch (in)
The Inch (in) is a unit of length equal to 0.0254 Meters.

Frequently asked questions

How do you convert Millimeters to Inches?
Multiply the number of Millimeters by 0.03937008. For example, 1 Millimeter × 0.03937008 = 0.03937008 Inches.
How many Inches are in a Millimeter?
There are 0.03937008 Inches in one Millimeter.
What is 10 Millimeters in Inches?
10 Millimeters is equal to 0.39370079 Inches.
How do you convert Inches back to Millimeters?
Multiply the number of Inches by 25.4 to get Millimeters. One Inch equals 25.4 Millimeters.