U+221E
| OS | Layout | Shortcut |
|---|---|---|
| Windows(you) | Us | AltGr + 8 |
| Windows | Uk | AltGr + 5 |
| Windows | German | AltGr + 5 |
| macOS | Us | Option + 5 |
| macOS | Uk | Option + 5 |
| macOS | German | Option + 5 |
The infinity symbol represents an unbounded quantity greater than any real number. It was introduced by mathematician John Wallis in 1655.
Used in mathematics for limits, set theory, and calculus. Also used colloquially and in design to represent endlessness or eternity.