Web platform features explorer - calc() keywords

Web platform features explorer

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

Status

Baseline Newly Available (since 2023-06-06)

This feature is expected to reach Baseline Widely Available status on: 2025-12-06

MDN documentation

<calc-keyword>

Specifications

CSS Values and Units Module Level 4 (#calc-keywords), from Cascading Style Sheets (CSS) Working Group (W3C).

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

Usage (according to Chrome Platform Status)

~0.311% of page loads. More data at chromestatus.

Web Platform Tests (WPT)

View the latest WPT test results for this feature

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