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Inch (in) to Millimeter (mm)
Convert measurements between Inch (in) and Millimeter (mm).
Common conversions
1in = 25.4 mm
5in = 126.9999 mm
10in = 253.9998 mm
24in = 609.5996 mm
32in = 812.7995 mm
55in = 1396.9991 mm
Conversion information
1 Inch (in) = 25.4 Millimeter (mm)
The CSS inch is defined as 96 reference pixels
The CSS millimeter is one thousandth of the screen-defined meter
Frequently Asked Questions
How many pixels are in a CSS inch?
A CSS inch equals 96 pixels.
Where is the typographic inch used?
In web design, printing, and layout.
How many pixels are in a CSS millimeter?
A CSS millimeter equals 3.77953 pixels.
Where is the typographic millimeter used?
In printing, design, and layout.