Inches to Millimeters converter
Type a value and get the answer instantly. Multiply the inches value by 25.4.
Millimeters25.4mm
Formula: mm = in × 25.4 — exact by international definition.
Common values
| Inches | Millimeters |
|---|---|
| 0.125 in | 3.175 mm |
| 0.25 in | 6.35 mm |
| 0.5 in | 12.7 mm |
| 0.75 in | 19.05 mm |
| 1 in | 25.4 mm |
| 1.5 in | 38.1 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 |
| 12 in | 304.8 mm |
Related
Frequently asked
How many millimeters is 1 inche?
1 in is 25.4 mm. The factor is exact by international definition.
How do I convert inches to millimeters?
Multiply the inches value by 25.4. Formula: mm = in × 25.4.