PX to EM Converter
Convert Pixels (PX) to EM instantly and vice versa.
PX to EM Converter
EM is relative to the parent element's font size.
px
em
px
16px=1em
Forward Formula
EM = PX ÷ Parent Font Size
Example: 24 ÷ 16 = 1.5em
Reverse Formula
PX = EM × Parent Font Size
Example: 1.5 × 16 = 24px
Unlike rem, em is relative to the parent element's font size. Nested em values compound, so an em inside an em inside an em multiplies sizes — useful for self-contained components, risky for global layouts.
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