in to mm CSS Converter
Convert Inch to Millimeter. Assumes 1in = 25.4mm at the default 16px root font-size and 1920×1080 viewport. Adjust root context below for precise rem/em/vw/vh calculations.
Input Inch
in
Result Millimeter
mm
Context
Common values
0.25in 6.35mm
0.5in 12.7mm
0.75in 19.05mm
1in 25.4mm
1.5in 38.1mm
2in 50.8mm
3in 76.2mm
4in 101.6mm
6in 152.4mm