Inch to Millimeter Converter
Convert inches to millimeters (in to mm) instantly. Free, accurate, and easy to use. No sign-up required.
How to convert Inch to Millimeter
1 in = 25.4 mm
To convert inches to millimeters, simply enter the value in inches and the result will appear instantly. This converter uses the standard conversion factor for length units.
For example, 1 in = 25.4 mm.