Millimeter to Inch
Convert mm to in instantly — free, no sign-up.
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About the Millimeter (mm)
The Millimeter is one thousandth of a meter, commonly used for precision measurements like paper thickness or small mechanical parts.
About the Inch (in)
The Inch is defined as exactly 2.54 centimeters, still the standard for screen sizes, tools, and paper sizes in the US.
How to convert mm to in
- Enter the value in mm in the box above.
- The in equivalent updates instantly.
- Use the swap button to convert in back to mm just as easily.