Inch to REM Converter

Accurately convert inches (in) to REM, suitable for responsive web design

px
dpi
in
0 rem

Conversion formula: 1 inch = 96px (96dpi)

Calculation method: (inch × dpi) ÷ rootFontSize = rem

Inch to REM Conversion Instructions

REM is a unit of measurement relative to the root element (html) font size. In the default case, 1 inch equals 96 pixels, then converted to REM based on the root font size.

Common Conversion Values (Based on 16px Root Font):

  • 1in = 6rem
  • 0.5in = 3rem
  • 0.25in = 1.5rem
  • 2in = 12rem

Usage Instructions:

  1. Set the root element font size (default 16px)
  2. Adjust the screen DPI value (default 96)
  3. Input the inch value
  4. Get the corresponding REM value

Usage Tips:

  • Suitable for responsive design
  • Scales based on the root font size
  • Accurate to three decimal places
  • Commonly used in web layout