Convert inches to millimeters
Convert inches to millimeters quickly and accurately. A free unit converter with a conversion table, formula, and instant calculator.
Quick answer
1 inches = 25.4 millimeters
How to convert inches to millimeters
To convert inches to millimeters, multiply the value by 25.4 (since 1 inches = 25.4 millimeters).
Formula
mm = in × 25.4
inches to millimeters conversion table
| inches | millimeters |
|---|---|
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 3 in | 76.2 mm |
| 4 in | 101.6 mm |
| 5 in | 127 mm |
| 10 in | 254 mm |
| 20 in | 508 mm |
| 25 in | 635 mm |
| 50 in | 1,270 mm |
| 100 in | 2,540 mm |
| 500 in | 12,700 mm |
| 1,000 in | 25,400 mm |