UnlimitedConvert
Inches to Millimeters converter
Convert inches (in) to millimeters (mm). Type a value and the result updates as you type.
1 in = 25.4 mm
How to convert inches to millimeters
1 in = 25.4 mm
Formula: mm = in × 25.4
Example: 10 in = 254 mm
in to mm conversion table
| inches (in) | millimeters (mm) |
|---|---|
| 0.1 in | 2.54 mm |
| 0.5 in | 12.7 mm |
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 3 in | 76.2 mm |
| 4 in | 101.6 mm |
| 5 in | 127 mm |
| 6 in | 152.4 mm |
| 7 in | 177.8 mm |
| 8 in | 203.2 mm |
| 9 in | 228.6 mm |
| 10 in | 254 mm |
| 12 in | 304.8 mm |
| 15 in | 381 mm |
| 20 in | 508 mm |
| 25 in | 635 mm |
| 30 in | 762 mm |
| 40 in | 1,016 mm |
| 50 in | 1,270 mm |
| 75 in | 1,905 mm |
| 100 in | 2,540 mm |
| 250 in | 6,350 mm |
| 500 in | 12,700 mm |
| 1,000 in | 25,400 mm |
About the units
Inch (in): Exactly 2.54 cm since 1959. Used in the US and UK for screens, height, and small lengths.
Millimeter (mm): One thousandth of a meter, used for small measurements, engineering drawings and screen sizes.
Convert the other way: millimeters to inches →