Convert Millimetre to Inch
Instant length conversion, with the formula and a full reference table.
1 mm
0.03937008 in
1 in = 25.4 mm
How to convert Millimetre to Inch
Multiply the number of millimetre by 0.03937008.
in = mm × 0.03937008
To go the other way, divide instead — or multiply by 25.4.
Worked example
To convert 25 mm: 25 × 0.03937008 = 0.98425197 in.
Millimetre to Inch conversion table
| Millimetre (mm) | Inch (in) |
|---|---|
| 1 | 0.03937008 |
| 2 | 0.07874016 |
| 3 | 0.11811024 |
| 5 | 0.19685039 |
| 10 | 0.39370079 |
| 20 | 0.78740157 |
| 25 | 0.98425197 |
| 50 | 1.9685 |
| 100 | 3.937 |
| 250 | 9.8425 |
| 500 | 19.685 |
| 1,000 | 39.3701 |