To convert inches to millimeters, multiply by 25.4.
| Inches (in) | Millimeters (mm) |
|---|---|
| 1 in | 25.4 mm |
| 5 in | 127 mm |
| 10 in | 254 mm |
| 15 in | 381 mm |
| 20 in | 508 mm |
| 25 in | 635 mm |
| 50 in | 1270 mm |
| 100 in | 2540 mm |
Formula: mm = in × 25.4
Example: 10 in = 10 × 25.4 = 254 mm
Reverse: 1 mm = 0.0393701 in. Convert Millimeters to Inches→