1 mm = 0.0393701 in
One millimeter equals approximately 0.0394 inches.
Conversion Formula
inches = mm x 0.0393701
Quick Converter
Millimeters to Inches Reference Table
| Millimeters (mm) | Inches (in) |
|---|---|
| 0.1 mm | 0.003937 in |
| 0.5 mm | 0.019685 in |
| 1 mm | 0.03937 in |
| 2 mm | 0.07874 in |
| 3 mm | 0.11811 in |
| 5 mm | 0.19685 in |
| 10 mm | 0.393701 in |
| 15 mm | 0.590552 in |
| 20 mm | 0.787402 in |
| 25 mm | 0.984252 in |
| 50 mm | 1.968505 in |
| 75 mm | 2.952757 in |
| 100 mm | 3.93701 in |
| 150 mm | 5.905515 in |
| 200 mm | 7.87402 in |
| 250 mm | 9.842525 in |
| 500 mm | 19.68505 in |
| 750 mm | 29.527575 in |
| 1000 mm | 39.3701 in |
| 5000 mm | 196.8505 in |
How to Convert Millimeters to Inches
To convert millimeters to inches, use the formula: inches = mm x 0.0393701. One millimeter equals approximately 0.0394 inches.
Quick Example
10 mm = 0.393701 in
About the Millimeters to Inches Conversion
Millimeters are the metric unit of choice for precise engineering, machining, and hardware specs. US workshops often convert them to inches because their tools and drawings use imperial fractions.
Worked example: A 25 mm bolt equals 25 x 0.0393701 = 0.98 inches, just under one inch. A 10 mm wrench is about 0.39 inches.
Common Uses
In practice, converting millimeters to inches comes up most often for matching metric bolt and drill sizes to imperial tools, reading engineering and machining specs, measuring jewelry and small parts, and converting print and design dimensions.