ToolKHHow to Use This Tool
- Step 1: Set base root font size (default 16px).
- Step 2: Enter PX value to calculate REM/EM equivalent.
Key Features & Advantages
- Custom base root font size.
- Bidirectional conversion (PX to REM / REM to PX).
Technical Details & Specifications
Formula: rem_val = px_val / base_font_size.
Frequently Asked Questions
Why use REM instead of PX in CSS?
REM respects user browser font scaling preferences for better accessibility.