PX to REM Converter

Convert pixels to rem units instantly for responsive web design

About PX to REM Conversion

REM (Root EM) units in CSS are relative to the root element's font size, making them ideal for responsive design. Unlike pixels (px) which are fixed units, REM units scale with the user's preferred browser settings.

How to Use This Tool

  1. Enter the pixel value you want to convert
  2. Specify your base font size (default is 16px)
  3. Click "Convert to REM" to get the equivalent REM value
  4. Copy the result and use it in your CSS

The Conversion Formula

The formula to convert pixels to rem is simple:

rem = px / base-font-size

For example, if your base font size is 16px and you want to convert 24px to rem:

24px / 16px = 1.5rem

Why Use REM Units?

Best Practices