Easily convert between pixels (px) and rem units with our instant converter. Perfect for responsive web design and CSS development.
The most advanced PX to REM converter and REM to PX calculator online. Convert pixels to rem units instantly for responsive web design. Perfect for CSS development and frontend workflows.
The conversion is based on the standard root font-size of 16px. The formula is simple: REM = PX / 16 and PX = REM × 16.
REM units are relative to the root element's font-size, making them perfect for responsive design and accessibility. They scale consistently across different devices and user preferences.
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