Unicode Character "Ι" (U+0399)

The character Ι (Greek Capital Letter Iota) is represented by the Unicode codepoint U+0399. It is encoded in the Greek and Coptic block, which belongs to the Basic Multilingual Plane. It was added to Unicode in version 1.1 (June, 1993). It is HTML encoded as Ι.

Main Unicode Properties

Name Greek Capital Letter Iota
Unicode Codepoint U+0399
Unicode Version 1.1 (June, 1993)
Block Greek and Coptic
Plane Basic Multilingual Plane

Bidirectional Data

Bidirectional class Left To Right (L)
Is mirrored? No

Character Case

Case Uppercase
Lowercase character ι (U+03B9)

Other Unicode Data

Category Uppercase Letter
Script Greek
Combining Class Not Reordered

U+0399 Conversion

HTML (decimal) Ι
HTML (hex) Ι
HTML (named) Ι
URL Escape Code %CE%99
CSS \000399
JavaScript, JSON \u0399
C, C++, Java \u0399
Python \u0399
Rust \u{0399}
Ruby \u0399

How to type "Ι"

  • Windows ?: Hold Alt, then type 0 3 9 9. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 0 3 9 9. Release Alt.


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

UTF Encodings

UTF-8 (hex) 0xCE 0x99
UTF-16 (hex) 0x0399
UTF-32 (hex) 0x00000399

Characters based on "Ι" (U+0399)