<sqrt> | CSS Types & Functions

Calculates the square root of a number. This is part of the exponent function set in CSS, useful for relative scaling based on geometric areas.

Quick example

.square {
  /* Scale an element based on the square root of its area */
  width: calc(sqrt(var(--area)) * 1px);
}

Widely availableSince 202388% global usage

This feature is well established and works across many devices and browser versions. It has been available across browsers since 2023.

Safe to use without fallbacks.

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