Developer tool
PX to REM & EM Converter
Convert pixel values to rem or em instantly. Set your base font size and copy clean CSS-ready values.
Result
1.5rem
24px = 1.5rem
Popular values for 16px base
4px = 0.25rem
8px = 0.5rem
12px = 0.75rem
14px = 0.875rem
16px = 1rem
18px = 1.125rem
20px = 1.25rem
24px = 1.5rem
32px = 2rem
40px = 2.5rem
48px = 3rem
64px = 4rem
Batch converter
Convert px values in CSS to rem
What is rem?
rem is relative to the root HTML font size. By default, most browsers use 16px.
What is em?
em is relative to the parent element font size.
Why use rem or em?
They help create scalable and accessible layouts.