CSS unit converter

Convert between CSS units: px, rem, em, vw, vh with configurable base font size and viewport

Value

Unit

Context settings (base font size, viewport)

Base font size (px)

used for rem, em, %

Viewport width (px)

used for vw

Viewport height (px)

used for vh

px16pxpixels (reference)

rem1remrelative to root font size

em1emrelative to parent font size

%100%percentage of parent

vw1.111111vwviewport width %

vh1.777778vhviewport height %

pt12pt1/72 inch

pc1pc12 points

in0.1666667ininches

cm0.4233333cmcentimetres

mm4.233333mmmillimetres

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