Handy Units
Millimeters to Inchesmm → in
1 mm = 0.0393701 in · 1 in = 25.4 mm
Formula
in = mm ÷ 25.4
Example: 25 mm = 25 ÷ 25.4 = 0.984252 in
These units differ only by a fixed factor: multiply by it to convert, divide to go back. The factors are exact international definitions (for example 1 inch = 2.54 cm exactly); results are rounded only for display.
Millimeters and Inches chart
| Millimeters (mm) | Inches (in) |
|---|---|
| 1 mm | 0.0393701 in |
| 2 mm | 0.0787402 in |
| 5 mm | 0.19685 in |
| 10 mm | 0.393701 in |
| 20 mm | 0.787402 in |
| 25 mm | 0.984252 in |
| 50 mm | 1.9685 in |
| 100 mm | 3.93701 in |
| 200 mm | 7.87402 in |
| 500 mm | 19.685 in |
| 1,000 mm | 39.3701 in |
| Inches (in) | Millimeters (mm) |
|---|---|
| 1 in | 25.4 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 |
| 8 in | 203.2 mm |
| 10 in | 254 mm |
| 12 in | 304.8 mm |
| 24 in | 609.6 mm |
| 36 in | 914.4 mm |
| 55 in | 1,397 mm |
| 65 in | 1,651 mm |
| 75 in | 1,905 mm |
About these units
Millimeter (mm)1 mm = 0.1 cm, common for parts, rainfall and paper sizes.
Inch (in)1 inch is exactly 2.54 cm, by international agreement in 1959. Screens, wheels and waist sizes are given in inches.
Questions
How many Inches are in 1 Millimeters?
1 mm = 0.0393701 in.
How many Millimeters are in 1 Inches?
1 in = 25.4 mm.
Related conversions
Inches to MillimetersCentimeters to InchesInches to CentimetersMeters to FeetFeet to MetersKilometers to MilesMiles to KilometersCentimeters to FeetFeet to CentimetersMeters to YardsYards to MetersNautical Miles to KilometersKilometers to Nautical MilesCentimeters to ChiChi to CentimetersMeters to ChiChi to MetersCun to CentimetersCentimeters to CunLi to KilometersKilometers to LiFeet to InchesInches to FeetLength Converter