straighten

CSS Unit Converter

Convert between px, rem, em, %, vw, vh.

Base Font Size (px)

Viewport Width (px)

px

rem

em

%

vw

pt

Quick reference (base 16px)

12px
0.75rem

14px
0.875rem

16px
1rem

18px
1.125rem

20px
1.25rem

24px
1.5rem

32px
2rem

48px
3rem