in to mm converter
1 in = 25.4 mm
And 1 mm = 0.0393701 in. Inches to millimetres.
Formula
mm = in × 25.4
A reading of 10 in is 10 × 25.4 = 254 mm.
in to mm table
| in | mm |
|---|---|
| 1 in | 25.4 mm |
| 2 in | 50.8 mm |
| 5 in | 127 mm |
| 10 in | 254 mm |
| 25 in | 635 mm |
| 50 in | 1,270 mm |
| 100 in | 2,540 mm |
| 500 in | 12,700 mm |
| 1,000 in | 25,400 mm |
mm to in table
| mm | in |
|---|---|
| 1 mm | 0.0393701 in |
| 2 mm | 0.0787402 in |
| 5 mm | 0.19685 in |
| 10 mm | 0.393701 in |
| 25 mm | 0.984252 in |
| 50 mm | 1.9685 in |
About these units
in (inches): US drawings and fasteners: exactly 25.4 mm.
mm (millimetres): Drawings, machining and tolerances.
The international inch is exactly 25.4 mm. A mil (or thou) is a thousandth of an inch, used for coating, film and tolerance values; do not confuse it with the millimetre.
Convert mm to in instead · All length conversions