1rem = 16px (by default)
The PX REM Calculator is a simple tool made for developers and designers to convert values between pixel (px) and rem units. Whether you're designing for mobile, tablet, or desktop screens, using rems makes your CSS more flexible and easier to manage.
What are PX and REM in CSS?
PX (pixels) are fixed-size units based on the screen resolution. REM (root em) is relative to the root element’s font size, usually 16px in most browsers.
rem = px ÷ base font sizeExample: 24px ÷ 16 = 1.5rem
Why Convert PX to REM?
- More responsive design across different screen sizes
- Better accessibility for users who change default font size
- Easier scaling when adjusting root font size
- Cleaner and more consistent CSS
How to Use This Tool
Enter your value in PX or REM. Choose the base font size (default is 16px). The calculator will automatically show you the converted value.
Default REM Values (Base: 16px)
- 1rem = 16px
- 1.5rem = 24px
- 2rem = 32px
- 3rem = 48px
Conclusion
Our PX REM Calculator is perfect for anyone writing CSS or creating responsive layouts. With accurate conversion and simple use, it makes web design faster and better. Try it now to save time and build smarter styles.