MM to REM Converter

Convert Millimeters (mm) to REM.

0rem

About MM to REM Converter

The MM to REM converter converts physical millimeter lengths into relative REM units. It first converts MM to PX using the DPI, then PX to REM using the root font size.

Formula

REM = ((MM × DPI) ÷ 25.4) ÷ Root Font Size

Examples

10mm at 96 DPI / 16px base = 2.36rem

Reference

  • • 25.4 mm = 1 inch
  • • 1 rem = root font size (default 16px)