What is REM in CSS?
REM stands for root em and is based on the root font size, usually 16px by default.
Converters
PX to REM Converter
Convert pixels (px) to rem and rem to pixels instantly using a 16px root font size.
Tool
PX to REM Converter
Convert pixels (px) to rem and rem to pixels instantly using a 16px root font size.
This tool runs in your browser. Your input is processed locally and is not uploaded.
About this Tool
Use this free online PX to REM converter to quickly convert between pixels (px) and rem units.
Conversion Formula
px → rem
rem = px ÷ 16
rem → px
px = rem × 16
Examples
- 16 px = 1 rem
- 24 px = 1.5 rem
- 2 rem = 32 px
Frequently Asked Questions
How do you convert px to rem?
Divide the pixel value by 16.
Why use rem instead of px?
REM units scale better for accessibility and responsive design.
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