CSS Unit Converter
Convert between px, rem, em, %, vw, vh, cm, mm, in, pt and pc.
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Reference values
All conversions
Reference notes
1rem = root font-size (usually 16px)1em = parent font-size · % does the same1vw = viewport width / 100 · 1vh = viewport height / 100in / cm / mm / pt / pc are physical units — CSS uses screen DPI (default 96) to convert to px. Print contexts assume 96 DPI for px, 72 DPI for pt.