Inch (in) to Millimeter (mm) converter

Converting from Inch (in) to Millimeter (mm) | Typography

What is Inch (in)

The inch (in) is a unit of length commonly used in the United States and other countries following the Imperial system. It is equivalent to 1/12 of a foot and is typically used in typography to measure font sizes and line spacing.

What is Millimeter (mm)

The millimeter (mm) is a metric unit of length equal to one thousandth of a meter. It is widely used in design and typography for precise measurements due to its smaller scale compared to the inch.

Conversion Formulas

The default conversion between inches and millimeters is:

  • 1 (in) = 25.4 (mm)
  • 1 (mm) = 0.03937008 (in)

For conversion, use the following formulas:

  • To convert inches to millimeters: mm=in×25.4

  • To convert millimeters to inches: in=mm×0.03937008

Examples

  • 8 inches in millimeters: 8in=203.2mm

  • 6 millimeters in inches: 6mm=0.2362205in

  • 13 inches in millimeters: 13in=330.2mm

  • 8 millimeters in inches: 8mm=0.3149606in

  • 6 inches in millimeters: 6in=152.4mm

  • 13 millimeters in inches: 13mm=0.511811in

Use this guide to easily perform conversions between inches and millimeters in typography projects.

Inch to Millimeter conversion table

in to mm conversion table

Inch (in)Millimeter (mm)
0.01 in0.254 mm
0.1 in2.54 mm
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
10 in254 mm
20 in508 mm
30 in762 mm
40 in1 016 mm
50 in1 270 mm
60 in1 524 mm
70 in1 778 mm
80 in2 032 mm
90 in2 286 mm
100 in2 540 mm
1 000 in25 400 mm
2 000 in50 800 mm
3 000 in76 200 mm
4 000 in101 600 mm
5 000 in127 000 mm
6 000 in152 400 mm
7 000 in177 800 mm
8 000 in203 200 mm
9 000 in228 600 mm
10 000 in254 000 mm