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PX to REM Converter
Convert pixels to rem units for responsive web design. Calculate rem values based on root font size. Free CSS unit converter.
Common Conversions
Embed this tool on your website
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px
ℹ️ About Px To Rem
Convert between pixels (px) and rem/em units for CSS. Essential for responsive web design. Customize base font size.
💡 Use Cases
Responsive web design
Converting design specs
Accessibility-friendly sizing
CSS framework development
Design to code translation
📋 How to Use
1
Enter a value in px or rem
2
Set your base font size
3
View the conversion
4
Copy the CSS value
💎 Pro Tips
- Default base: 16px = 1rem
- rem is relative to root font size
- em is relative to parent font size
❓ Frequently Asked Questions
Rem respects user font size preferences - better accessibility.
rem is relative to html/root; em is relative to parent element.
16px is browser default and most common base size.