How many mm in a inch ?

An inch (plural: inches, symbol: in) is a unit of length. An inch is defined to be exactly 25.4 mm. There are 12 inches in a foot and therefore 36 inches in a yard.

This tool converts inches to millimeters (in to mm) and vice versa. 1 inch = 25.4 millimeters. The user must fill one of the two fields and the conversion will become automatically.

 
 <=> 
   
precision:

1 inches = 25.4 millimeters

 



Formula inches in millimeters (in in mm). Millimeter = inch*25.4

 

Conversions inches to other units

Inch to Foot Inch to Millimeter Inch to Centimeter
Inch to Meter Inch to Kilometer Inch to Yard
Inch to Mile Inch to Nautical mile

  

Table inches to millimeters
1 inches = 25.4 millimeters11 inches = 279.4 millimeters21 inches = 533.4 millimeters
2 inches = 50.8 millimeters12 inches = 304.8 millimeters22 inches = 558.8 millimeters
3 inches = 76.2 millimeters13 inches = 330.2 millimeters23 inches = 584.2 millimeters
4 inches = 101.6 millimeters14 inches = 355.6 millimeters24 inches = 609.6 millimeters
5 inches = 127 millimeters15 inches = 381 millimeters25 inches = 635 millimeters
6 inches = 152.4 millimeters16 inches = 406.4 millimeters26 inches = 660.4 millimeters
7 inches = 177.8 millimeters17 inches = 431.8 millimeters27 inches = 685.8 millimeters
8 inches = 203.2 millimeters18 inches = 457.2 millimeters28 inches = 711.2 millimeters
9 inches = 228.6 millimeters19 inches = 482.6 millimeters29 inches = 736.6 millimeters
10 inches = 254 millimeters20 inches = 508 millimeters30 inches = 762 millimeters
40 inches = 1016 millimeters70 inches = 1778 millimeters100 inches = 2540 millimeters
50 inches = 1270 millimeters80 inches = 2032 millimeters110 inches = 2794 millimeters
60 inches = 1524 millimeters90 inches = 2286 millimeters120 inches = 3048 millimeters
200 inches = 5080 millimeters500 inches = 12700 millimeters800 inches = 20320 millimeters
300 inches = 7620 millimeters600 inches = 15240 millimeters900 inches = 22860 millimeters
400 inches = 10160 millimeters700 inches = 17780 millimeters1000 inches = 25400 millimeters


Length Conversions

Foot to Millimeter Foot to Centimeter Foot to Meter
Foot to Kilometer Foot to Yard Foot to Mile
Foot to Nautical mile Foot to Inch Millimeter to Foot
Millimeter to Centimeter Millimeter to Meter Millimeter to Kilometer
Millimeter to Yard Millimeter to Mile Millimeter to Nautical mile
Millimeter to Inch Centimeter to Foot Centimeter to Millimeter
Centimeter to Meter Centimeter to Kilometer Centimeter to Yard
Centimeter to Mile Centimeter to Nautical mile Centimeter to Inch
Meter to Foot Meter to Millimeter Meter to Centimeter
Meter to Kilometer Meter to Yard Meter to Mile
Meter to Nautical mile Meter to Inch Kilometer to Foot
Kilometer to Millimeter Kilometer to Centimeter Kilometer to Meter
Kilometer to Yard Kilometer to Mile Kilometer to Nautical mile
Kilometer to Inch Yard to Foot Yard to Millimeter
Yard to Centimeter Yard to Meter Yard to Kilometer
Yard to Mile Yard to Nautical mile Yard to Inch
Mile to Foot Mile to Millimeter Mile to Centimeter
Mile to Meter Mile to Kilometer Mile to Yard
Mile to Nautical mile Mile to Inch Nautical mile to Foot
Nautical mile to Millimeter Nautical mile to Centimeter Nautical mile to Meter
Nautical mile to Kilometer Nautical mile to Yard Nautical mile to Mile
Nautical mile to Inch