PX to REM Converter
Convert pixel values to REM units for responsive design with configurable root font sizes and real-time preview. Perfect for scalable typography and mobile-first design with instant calculations and CSS output generation.
px
rem
css
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Quick Presets
Common pixel values for quick conversion
Input & Settings
Enter a pixel value and base font size to convert to REM
REM is relative to the root font size (html element)
How it works: Divides the pixel value by your base font size (default 16px) to calculate the equivalent REM value. REM units scale proportionally with the root font size, making them ideal for responsive and accessible layouts.
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