Web platform features explorer

calc-size()

The calc-size() CSS function computes mathematical expressions that include height and width keyword values, for example calc-size(fit-content, size / 2). Not to be confused with the calc() CSS function, which cannot use keyword values.

Status

Limited availability

MDN documentation

Browser support

Developer signals

Usage (according to Chrome Platform Status)

~0.095% of page loads. More data at chromestatus.