UnicodeCharactercom
σ
U+03C3 · GREEK SMALL LETTER SIGMA

Greek Small Letter Sigma

  • CodepointU+03C3
  • NameGREEK SMALL LETTER SIGMA
  • Decimal963
  • BlockGreek and Coptic (U+0370–U+03FF)
  • Plane0 — Basic Multilingual Plane
  • ScriptGreek
  • CategoryLl — Lowercase Letter
  • Unicode version1.1 (1993)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthA — Ambiguous
  • MirroredNo

About this character

U+03C3 (σ) is GREEK SMALL LETTER SIGMA, a lowercase letter in the Greek and Coptic block. It belongs to the Greek script. It was added in Unicode 1.1 (1993).

Its uppercase form is U+03A3 Σ.

How to type σ

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Encodings & escapes

UTF-8 encoder →
UTF-8CF 832 bytes
UTF-1603C31 code unit
UTF-32000003C34 bytes
HTML namedσnamed character reference
HTML decimalσ
HTML hexσ
CSS\3C3in content: "…"
JavaScript\u03C3
JSON\u03C3
Python\u03C3
Python\N{GREEK SMALL LETTER SIGMA}by name
Java / C#\u03C3
C / C++\u03C3universal character name
Rust / Swift / PHP\u{3C3}
Go\u03C3
Ruby\u03C3
Excel / Sheets=UNICHAR(963)
URL-encoded%CF%83percent-encoded UTF-8
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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+006FoLatin Small Letter O U+03BFοGreek Small Letter Omicron U+043EоCyrillic Small Letter O U+0585օArmenian Small Letter Oh U+05E1סHebrew Letter Samekh U+0647هArabic Letter Heh U+0665٥Arabic-Indic Digit Five U+06BEھArabic Letter Heh Doachashmee U+06C1ہArabic Letter Heh Goal U+06D5ەArabic Letter Ae U+06F5۵Extended Arabic-Indic Digit Five U+0966०Devanagari Digit Zero U+0E50๐Thai Digit Zero U+10FFჿGeorgian Letter Labial Sign U+2134ℴScript Small O U+FF4FｏFullwidth Latin Small Letter O
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Characters built on σ

U+1D6D4𝛔Mathematical Bold Small Sigma U+1D70E𝜎Mathematical Italic Small Sigma U+1D748𝝈Mathematical Bold Italic Small Sigma U+1D782𝞂Mathematical Sans-Serif Bold Small Sigma U+1D7BC𝞼Mathematical Sans-Serif Bold Italic Small Sigma
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Nearby in Greek and Coptic

All in block →
U+03BDνGreek Small Letter Nu U+03BEξGreek Small Letter Xi U+03BFοGreek Small Letter Omicron U+03C0πGreek Small Letter Pi U+03C1ρGreek Small Letter Rho U+03C2ςGreek Small Letter Final Sigma U+03C4τGreek Small Letter Tau U+03C5υGreek Small Letter Upsilon U+03C6φGreek Small Letter Phi U+03C7χGreek Small Letter Chi U+03C8ψGreek Small Letter Psi U+03C9ωGreek Small Letter Omega