# Convert Inches (in) to Millimeters (mm)

Please provide the values below to convert from Inch (in) to Millimeters (mm) and vice versa.

### What is a Inch?

The inch (symbol: in or ″) is a unit of length in the British imperial and the United States customary systems of measurement. An inch in the metric system equals 2.54 cm, or 1/36 yard or 1/12 of a foot.

### What is a Millimeter?

The Millimetre (international spelling; SI unit symbol mm) or millimeter (American spelling) is a unit of length in the metric system, equal to one-thousandth of a meter, which is the SI base unit of length. Therefore, there are one thousand millimeters in a meter and ten millimeters in a centimeter.

### How to Convert Inch to Millimeters?

To convert Inch to Millimeters, simply multiply the Inch value by 25.4.

The formula used to calculate Inch to Millimeters -

d(in) = d(mm) * 25.4

The distance d in Millimeters (mm) is equal to the distance d in Inches (in) multiplied by 25.4.

### How many Millimeters in a Inch

In simple terms, 1 in is equal to 25.4 mm.

The formula used is 1*25.4 = 25.4(mm)

### How many Inches in a Millimeter

1 Millimeter is equal to 0.03937007874 Inches. So we can also say that there are 0.03937007874 Inches in a Millimeter.

### Inch to Millimeters Conversion Table

Inch (in)Millimeter (mm)
0.01 (in)
0.02 (in)
0.03 (in)
0.04 (in)
0.05 (in)
1 (in)
2 (in)
3 (in)
4 (in)
5 (in)
6 (in)
7 (in)
8 (in)
9 (in)
10 (in)
20 (in)
30 (in)
40 (in)
50 (in)
60 (in)
70 (in)
80 (in)
90 (in)
100 (in)
200 (in)
300 (in)
400 (in)
500 (in)
600 (in)
700 (in)
800 (in)
900 (in)
1000 (in)
5000 (in)
10000 (in)