CSS Unit Converter

Convert between px, em, rem, pt, percent and vw/vh in both directions.

Pixels (px):

Base font-size (px):

rem:

Points (pt):

Viewport width (px):

–em (base)

–Percent

–vw

How to use

Enter a value in any unit — every other unit converts live; everything runs in your browser.

What base size is used?

16 px default — change it to match your root font-size.

How are vw units handled?

Viewport width you enter: 1 vw = 1% of that width.

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