Unicode Character "ϑ" (U+03D1)

The character ϑ (Greek Theta Symbol) is represented by the Unicode codepoint U+03D1. 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 ϑ.

Main Unicode Properties

Name Greek Theta Symbol
Unicode Codepoint U+03D1
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 Lowercase
Uppercase character Θ (U+0398)

Other Unicode Data

Category Lowercase Letter
Script Greek
Combining Class Not Reordered
Decomposition mapping

U+03D1 Conversion

HTML (decimal) ϑ
HTML (hex) ϑ
HTML (named) ϑ
URL Escape Code %CF%91
CSS \0003D1
JavaScript, JSON \u03D1
C, C++, Java \u03D1
Python \u03D1
Rust \u{03D1}
Ruby \u03D1

How to type "ϑ"

  • Windows ?: Hold Alt, then type 0 3 D 1. Release Alt.
  • Mac ?: Hold Alt ⌥, then type 0 3 D 1. Release Alt.


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

UTF Encodings

UTF-8 (hex) 0xCF 0x91
UTF-16 (hex) 0x03D1
UTF-32 (hex) 0x000003D1

Characters based on "ϑ" (U+03D1)