Formula
mm = inches × 25.4
Inches to MM table
| Inch (in) | Millimeter (mm) |
|---|---|
| 1 | 25.4 |
| 2 | 50.8 |
| 3 | 76.2 |
| 4 | 101.6 |
| 5 | 127 |
| 6 | 152.4 |
| 7 | 177.8 |
| 8 | 203.2 |
| 9 | 228.6 |
| 10 | 254 |
| 15 | 381 |
| 20 | 508 |
| 25 | 635 |
| 30 | 762 |
| 40 | 1016 |
| 50 | 1270 |
| 75 | 1905 |
| 100 | 2540 |
About the units
- Inch
- An inch is defined as exactly 2.54 centimeters. It is the standard unit for screen sizes and short lengths in the US.
- Millimeter
- A millimeter is one thousandth of a meter. It is used for precise measurements such as rainfall, screw sizes and the thickness of materials.