- Home
- /
- Free Pixel to REM Converter — PX to REM Calculator
✓100% Free✓No Signup✓No Data Stored✓Works Instantly
✦ Free Online Tool
FREE PIXEL TO REM CONVERTER
Convert pixels to REM units instantly for CSS. Set your base font size. Free PX to REM converter, no signup.
PX to REM Formula
REM = PX / Base Font Size. With 16px base: 16px = 1rem, 24px = 1.5rem, 32px = 2rem, 12px = 0.75rem.
Why Developers Use REM
- Scales proportionally when user zooms browser
- Respects user accessibility font preferences
- Makes responsive typography easier to manage
Frequently Asked Questions
What is REM?+
REM (root em) is a CSS unit relative to the root element font size. Default browser font size is 16px, so 1rem = 16px.
Why use REM instead of PX?+
REM scales with user's browser font size preferences, making layouts more accessible and responsive.
What base size should I use?+
Use 16px (browser default) unless your CSS sets a different root font size.
Is it free?+
Yes, 100% free.