DevConverter

Design Tools

CSS Unit Converter

Convert between all CSS length units in real time.

UnitValueDescription
px absolute
—

Pixels (CSS reference pixel)

rem relative
—

Relative to root <html> font-size

em relative
—

Relative to parent element font-size

% relative
—

Percentage of parent element size

vw viewport
—

Percentage of viewport width

vh viewport
—

Percentage of viewport height

vmin viewport
—

Percentage of the smaller viewport dimension

vmax viewport
—

Percentage of the larger viewport dimension

pt absolute
—

Points — 1pt = 1.333
px (96/72)

pc absolute
—

Picas — 1pc = 16px (12pt)

in absolute
—

Inches — 1in = 96px

cm absolute
—

Centimetres — 1cm ≈ 37.795px

mm absolute
—

Millimetres — 1mm ≈ 3.78px

Edit any field — all units update instantly