Unicode Character "Σ" (U+03A3)

The character Σ (Greek Capital Letter Sigma) is represented by the Unicode codepoint U+03A3. 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 Σ.

Main Unicode Properties

Name Greek Capital Letter Sigma
Unicode Codepoint U+03A3
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 σ (U+03C3)

Other Unicode Data

Category Uppercase Letter
Script Greek
Combining Class Not Reordered

U+03A3 Conversion

HTML (decimal) Σ
HTML (hex) Σ
HTML (named) Σ
URL Escape Code %CE%A3
CSS \0003A3
JavaScript, JSON \u03A3
C, C++, Java \u03A3
Python \u03A3
Rust \u{03A3}
Ruby \u03A3

How to type "Σ"

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


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

UTF Encodings

UTF-8 (hex) 0xCE 0xA3
UTF-16 (hex) 0x03A3
UTF-32 (hex) 0x000003A3

Characters based on "Σ" (U+03A3)