Unicode Character "Ω" (U+03A9)

The character Ω (Greek Capital Letter Omega) is represented by the Unicode codepoint U+03A9. 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 Ω.

Main Unicode Properties

Name Greek Capital Letter Omega
Unicode Codepoint U+03A9
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 ω (U+03C9)

Other Unicode Data

Category Uppercase Letter
Script Greek
Combining Class Not Reordered

U+03A9 Conversion

HTML (decimal) Ω
HTML (hex) Ω
HTML (named) Ω
URL Escape Code %CE%A9
CSS \0003A9
JavaScript, JSON \u03A9
C, C++, Java \u03A9
Python \u03A9
Rust \u{03A9}
Ruby \u03A9

How to type "Ω"

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


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

UTF Encodings

UTF-8 (hex) 0xCE 0xA9
UTF-16 (hex) 0x03A9
UTF-32 (hex) 0x000003A9

Characters based on "Ω" (U+03A9)