Widely Available
CSS
id: calc-constants
calc() keywords
The
e, pi, infinity, and NaN keywords represent well-defined constants accepted in CSS math functions such as calc().
Baseline Status:
Achieved Widely Available on Dec 6, 2025 (Cross-browser Newly Available since Jun 6, 2023).
Desktop Browser Engine Support
Google Chrome
110
Supported
Mozilla Firefox
114
Supported
Apple Safari
16
Supported
Microsoft Edge
110
Supported
Mobile Browser Engine Support
Chrome Android
110
Firefox Android
114
Safari iOS
16
Specifications and References