Unicode Character "∞" (U+221E)

The character (Infinity) is represented by the Unicode codepoint U+221E. It is encoded in the Mathematical Operators block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as ∞.

Main Unicode Properties

Name Infinity
Unicode Codepoint U+221E
Unicode Version 1.1 (June, 1993)
Block Mathematical Operators
Plane Basic Multilingual Plane

Bidirectional Data

Bidirectional class Other Neutral (ON)
Is mirrored? No

Other Unicode Data

Category Math Symbol
Script Code for undetermined script
Combining Class Not Reordered

U+221E Conversion

HTML (decimal) ∞
HTML (hex) ∞
HTML (named) ∞
URL Escape Code %E2%88%9E
CSS \00221E
JavaScript, JSON \u221E
C, C++, Java \u221E
Python \u221E
Rust \u{221E}
Ruby \u221E

How to type "∞"

  • Windows ?: Hold Alt, then type 2 2 1 E. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 2 2 1 E. Release Alt.


  • Times, Times New Roman, serif
  • Helvetica, Arial, sans-serif
  • Courier, Courier New, monospace

UTF Encodings

UTF-8 (hex) 0xE2 0x88 0x9E
UTF-16 (hex) 0x221E
UTF-32 (hex) 0x0000221E