PX to REM Converter

Convert pixels to rem using your document base font size.

Conversion values

The browser default is often 16px, but your document or user settings may use another base.

Conversion result

REM value1.5rem

24px ÷ 16px = 1.5rem

About the PX to REM Converter

Translate an absolute pixel measurement into a root-relative rem value for CSS planning.

How to use it

  1. Enter the pixel measurement.
  2. Confirm the root base font size, which defaults to 16px.
  3. Copy the calculated rem value.

Formula

rem = pixels ÷ base font size.

Example

24px divided by a 16px base equals 1.5rem.

Notes

The rendered size depends on the document root font size and user/browser settings.