px
REM
0rem
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EM
0em
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Percentage
0%
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Points (pt)
0pt
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How it Works
Web browsers use a default base font size of 16px. The rem unit is relative to this root size.
Formula: Pixels / Base Size = REM: Pixels / Base Size = REM
Example: 24px / 16px = 1.5rem: 24px / 16px = 1.5rem