REM to PX Converter
Easily convert CSS values between REM and Pixels (PX). Essential for modern, responsive web design.
Fluid Typography Made Simple
Stop doing mental math. Our REM to PX converter helps you translate design specs (often in pixels) to accessible CSS units (REM) instantly.
How this REM to PX Converter works
This calculator facilitates accurate conversion between REM (Root EM) units and Pixels (PX) for responsive web design. REM units are relative to the root element's font-size (typically 16px), making them crucial for scalable layouts and accessibility. This tool performs the mathematical multiplication or division required to translate between these two units instantly.
The converter supports custom base font sizes, allowing users to adjust the calculation if their project uses a non-standard root size (e.g., 10px or 14px). It offers bidirectional conversion: typing in the REM field updates the PX value, and vice-versa. This eliminates the need for manual mental math during CSS development, ensuring precise layout measurements across different screen sizes.
How to Use
Set Base Size
Default is 16px (standard for most browsers).
Enter Values
Type in either REM or PX field.
Get Result
The other field updates automatically.
Example Usage
Converting 2rem to pixels.
Frequently Asked Questions
Why use REM instead of PX?
What is the standard base size?
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The REM to PX Converter is maintained by CodeItBro. We aim to provide the best free developer tools on the web. If you have feedback or suggestions, please visit our contact page.