ToolForgeby ForgeSparse

CSS Unit Converter Tools

Convert between px, em, rem, %, vw and more.

Value

Context

Root font size (px)Parent font size (px)Viewport width (px)Viewport height (px)

Equivalents

px24px

rem1.5rem

em1.5em

pt18pt

pc1.5pc

in0.25in

cm0.635cm

mm6.35mm

%150%

vw1.6667vw

vh2.6667vh

Preview

Bar width relative to the viewport width you set.

Good to know

CSS reference: 1in = 96px, 1pt = 1/72in, 1pc = 16px.
rem uses the root font size; em uses the parent font size.
% and em share the same base here (parent font size).
vw / vh depend on the viewport size you set below.