UnicodeCharactercom
ϑ
U+03D1 · GREEK THETA SYMBOL

Greek Theta Symbol

  • CodepointU+03D1
  • NameGREEK THETA SYMBOL
  • Decimal977
  • 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 widthN — Neutral
  • MirroredNo

About this character

U+03D1 (ϑ) is GREEK THETA SYMBOL, 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+0398 Θ.

It is a compatibility variant of U+03B8 θ (compatibility decomposition <compat>). NFC and NFD leave it alone, but NFKC and NFKD replace it with U+03B8 θ. Search engines, identifier checks and username systems that apply NFKC will treat the two as the same text.

How to type ϑ

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Encodings & escapes

UTF-8 encoder →
UTF-8CF 912 bytes
UTF-1603D11 code unit
UTF-32000003D14 bytes
HTML named&thetav;named character reference
HTML named&thetasym;named character reference
HTML named&vartheta;named character reference
HTML decimal&#977;
HTML hex&#x3D1;
CSS\3D1in content: "…"
JavaScript\u03D1
JSON\u03D1
Python\u03D1
Python\N{GREEK THETA SYMBOL}by name
Java / C#\u03D1
C / C++\u03D1universal character name
Rust / Swift / PHP\u{3D1}
Go\u03D1
Ruby\u03D1
Excel / Sheets=UNICHAR(977)
URL-encoded%CF%91percent-encoded UTF-8
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Normalization forms

Normalizer →
NFCunchanged
NFDunchanged
NFKCU+03B8 θ
NFKDU+03B8 θ
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Characters built on ϑ

U+1D6DD𝛝Mathematical Bold Theta Symbol U+1D717𝜗Mathematical Italic Theta Symbol U+1D751𝝑Mathematical Bold Italic Theta Symbol U+1D78B𝞋Mathematical Sans-Serif Bold Theta Symbol U+1D7C5𝟅Mathematical Sans-Serif Bold Italic Theta Symbol
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Nearby in Greek and Coptic

All in block →
U+03CBϋGreek Small Letter Upsilon with Dialytika U+03CCόGreek Small Letter Omicron with Tonos U+03CDύGreek Small Letter Upsilon with Tonos U+03CEώGreek Small Letter Omega with Tonos U+03CFϏGreek Capital Kai Symbol U+03D0ϐGreek Beta Symbol U+03D2ϒGreek Upsilon with Hook Symbol U+03D3ϓGreek Upsilon with Acute and Hook Symbol U+03D4ϔGreek Upsilon with Diaeresis and Hook Symbol U+03D5ϕGreek Phi Symbol U+03D6ϖGreek Pi Symbol U+03D7ϗGreek Kai Symbol