CSS Units

Convert between px, rem, em, pt, vw, vh, and %. Live preview of font sizes and box dimensions. Click any row to copy.

Context settings

Root font size (px)

Parent font size (px)

Viewport width (px)

Viewport height (px)

Pixels

Unit	Value	Expression

Value 16

Unit

The quick brown fox jumps over the lazy dog

Width 200px

Unit