How many mm in a inch? Inches to millimeters calculator.
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.
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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 millimeters | 11 inches = 279.4 millimeters | 21 inches = 533.4 millimeters |
| 2 inches = 50.8 millimeters | 12 inches = 304.8 millimeters | 22 inches = 558.8 millimeters |
| 3 inches = 76.2 millimeters | 13 inches = 330.2 millimeters | 23 inches = 584.2 millimeters |
| 4 inches = 101.6 millimeters | 14 inches = 355.6 millimeters | 24 inches = 609.6 millimeters |
| 5 inches = 127 millimeters | 15 inches = 381 millimeters | 25 inches = 635 millimeters |
| 6 inches = 152.4 millimeters | 16 inches = 406.4 millimeters | 26 inches = 660.4 millimeters |
| 7 inches = 177.8 millimeters | 17 inches = 431.8 millimeters | 27 inches = 685.8 millimeters |
| 8 inches = 203.2 millimeters | 18 inches = 457.2 millimeters | 28 inches = 711.2 millimeters |
| 9 inches = 228.6 millimeters | 19 inches = 482.6 millimeters | 29 inches = 736.6 millimeters |
| 10 inches = 254 millimeters | 20 inches = 508 millimeters | 30 inches = 762 millimeters |
| 40 inches = 1016 millimeters | 70 inches = 1778 millimeters | 100 inches = 2540 millimeters |
| 50 inches = 1270 millimeters | 80 inches = 2032 millimeters | 110 inches = 2794 millimeters |
| 60 inches = 1524 millimeters | 90 inches = 2286 millimeters | 120 inches = 3048 millimeters |
| 200 inches = 5080 millimeters | 500 inches = 12700 millimeters | 800 inches = 20320 millimeters |
| 300 inches = 7620 millimeters | 600 inches = 15240 millimeters | 900 inches = 22860 millimeters |
| 400 inches = 10160 millimeters | 700 inches = 17780 millimeters | 1000 inches = 25400 millimeters |
Length Conversions