Axis

Typography & screen units

chch

The CSS unit equal to the advance width of “0”.

Dimension
length
Canonical signature
L
System
css
Exactness
Context dependent

Definition record

How this unit is defined

Canonical base
1 ch = — m
Conversion type
context
Historical notes
Approximated as half the font size; requires a reference font size.
Aliases
character width, zero width

Same dimension

Common conversions

Every conversion routes through the canonical base of the dimension.