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calc() keywords

Widely Available (since 2025-12-06)

The e, pi, infinity, and NaN keywords represent well-defined constants accepted in CSS math functions such as calc().

Browser support

  • Chrome 110 Released on 2023-02-07
  • Chrome Android 110 Released on 2023-02-07
  • Edge 110 Released on 2023-02-09
  • Firefox 114 Released on 2023-06-06
  • Firefox for Android 114 Released on 2023-06-06
  • Safari 16 Released on 2022-09-12
  • Safari on iOS 16 Released on 2022-09-12

MDN documentation

Specifications

Usage (according to Chrome Platform Status)

~0.526% of page loads. More data at chromestatus.com.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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