Unit Converter
Convert between px, rem, em, and % with configurable base font size.
Base font size
Unit inputs
px
Used for rem/em calculations
PX input
REM input
EM input
Percent input
Common values
Formula reference
Current conversions
px → rem
px / base
rem → px
rem * base
px → %
(px / base) * 100
rem
em
%
Enter a value to convert