Free online converter from inches to millimeters. Type a value to get an instant result, check the formula and use the quick reference table below.
| inches (in) | millimeters (mm) |
|---|---|
| 1 | 25.4 |
| 2 | 50.8 |
| 5 | 127 |
| 10 | 254 |
| 20 | 508 |
| 50 | 1270 |
| 100 | 2540 |
| 250 | 6350 |
| 500 | 12700 |
| 1000 | 25400 |
1 in = 25.4 mm.
Multiply the value in inches by 25.4 to get millimeters.