PX to REM Converter
Essential PX/REM converter with custom root font size support.
px
Default browser root font size is usually 16px
R
Using REM units in web development supports better responsive layouts and accessibility. This tool helps you quickly convert between PX and REM.
Common Conversion Table
About This Tool
In modern responsive web development, using REM (Root EM) units offers significant advantages over fixed PX (Pixels), especially for accessibility and mobile adaptation. This tool provides convenient bidirectional conversion between PX and REM. It defaults to a 16px base but supports custom adjustments. A handy reference table is also included to streamline your CSS coding process.
Features
- 🔄 Bidirectional: Auto-convert PX to REM and vice versa
- ⚙️ Custom Base: Adjustable Root Font Size (default 16px)
- 📊 Reference Table: Built-in common PX/REM mapping table
- ⚡ Real-time: Instant results as you type
- 📋 One-click Copy: Easily copy conversion results
- 📱 Responsive: Perfectly adapted for all screen sizes