UnicodeCharactercom
Σ
U+03A3 · GREEK CAPITAL LETTER SIGMA

Greek Capital Letter Sigma

  • CodepointU+03A3
  • NameGREEK CAPITAL LETTER SIGMA
  • Decimal931
  • BlockGreek and Coptic (U+0370–U+03FF)
  • Plane0 — Basic Multilingual Plane
  • ScriptGreek
  • CategoryLu — Uppercase Letter
  • Unicode version1.1 (1993)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthA — Ambiguous
  • MirroredNo

About this character

U+03A3 (Σ) is GREEK CAPITAL LETTER SIGMA, an uppercase letter in the Greek and Coptic block. It belongs to the Greek script. It was added in Unicode 1.1 (1993).

Its lowercase form is U+03C3 σ.

How to type Σ

§

Encodings & escapes

UTF-8 encoder →
UTF-8CE A32 bytes
UTF-1603A31 code unit
UTF-32000003A34 bytes
HTML namedΣnamed character reference
HTML decimalΣ
HTML hexΣ
CSS\3A3in content: "…"
JavaScript\u03A3
JSON\u03A3
Python\u03A3
Python\N{GREEK CAPITAL LETTER SIGMA}by name
Java / C#\u03A3
C / C++\u03A3universal character name
Rust / Swift / PHP\u{3A3}
Go\u03A3
Ruby\u03A3
Excel / Sheets=UNICHAR(931)
URL-encoded%CE%A3percent-encoded UTF-8
§

Looks similar

Characters that Unicode’s security data (UTS #39 confusables) lists as visually confusable with this one. Useful for spotting lookalike spoofing in URLs and usernames.

U+01A9ƩLatin Capital Letter Esh U+2140⅀Double-Struck N-Ary Summation U+2211∑N-Ary Summation U+1D6BA𝚺Mathematical Bold Capital Sigma U+1D6F4𝛴Mathematical Italic Capital Sigma U+1D72E𝜮Mathematical Bold Italic Capital Sigma U+1D768𝝨Mathematical Sans-Serif Bold Capital Sigma U+1D7A2𝞢Mathematical Sans-Serif Bold Italic Capital Sigma U+2D49ⵉTifinagh Letter Yi
§

Characters built on Σ

U+03F9ϹGreek Capital Lunate Sigma Symbol U+1D6BA𝚺Mathematical Bold Capital Sigma U+1D6F4𝛴Mathematical Italic Capital Sigma U+1D72E𝜮Mathematical Bold Italic Capital Sigma U+1D768𝝨Mathematical Sans-Serif Bold Capital Sigma U+1D7A2𝞢Mathematical Sans-Serif Bold Italic Capital Sigma
§

Nearby in Greek and Coptic

All in block →
U+039DΝGreek Capital Letter Nu U+039EΞGreek Capital Letter Xi U+039FΟGreek Capital Letter Omicron U+03A0ΠGreek Capital Letter Pi U+03A1ΡGreek Capital Letter Rho U+03A4ΤGreek Capital Letter Tau U+03A5ΥGreek Capital Letter Upsilon U+03A6ΦGreek Capital Letter Phi U+03A7ΧGreek Capital Letter Chi U+03A8ΨGreek Capital Letter Psi U+03A9ΩGreek Capital Letter Omega