Millimeters (mm) to Inches Conversion Calculator
Convert millimeters to inches quickly with our calculation tool, formula, and conversion table.
Millimeter to Inch Conversion
Convert Millimeters (mm) to Inches
Both inches and millimeters are units of length. The inch system is most commonly used in the United States, Canada, and the United Kingdom. While the metric system is used in most other parts of the world. So you may need the conversion frequently when buying paper roll products. We have created this free mm to inch conversion tool so you can make the conversion easier and quickly.
Since we know 1 inch = 25.4 mm, the fastest and easiest way to convert millimeters to inches (mm to in) is to use this simple formula:
Formula:
- Inches = Millimeters ÷ 25.4
Example #1: Convert 50 mm to inches:
inches = (50 mm ÷ 25.4) = 1.9685″
Example #2: Convert 80 mm to inches:
inches = (80 mm ÷ 25.4) = 3.1496″
Download the MM and Inch Conversion PDF Chart
We also prepared a printable PDF conversion chart table listing common inch and mm conversions. You can print and keep it on your desk for quick reference.
Common Millimeters to Inches Conversion Chart Table
| Millimeters | Inches (Decimal) | Inches (Fraction) |
|---|---|---|
| 1 mm | 0.03937″ | – |
| 2 mm | 0.07874″ | – |
| 3 mm | 0.11811″ | 1/8″ |
| 4 mm | 0.15748″ | – |
| 5 mm | 0.19685″ | – |
| 6 mm | 0.23622″ | 1/4″ |
| 7 mm | 0.275591″ | – |
| 8 mm | 0.314961″ | 5/16″ |
| 9 mm | 0.354331″ | – |
| 10 mm | 0.393701″ | 3/8″ |
| 11 mm | 0.433071″ | – |
| 12 mm | 0.472441″ | 15/32″ |
| 13 mm | 0.511811″ | 1/2″ |
| 14 mm | 0.551181″ | – |
| 15 mm | 0.590551″ | – |
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