UnicodeCharactercom
ℚ
U+211A · DOUBLE-STRUCK CAPITAL Q

Double-Struck Capital Q

  • CodepointU+211A
  • NameDOUBLE-STRUCK CAPITAL Q
  • Decimal8474
  • BlockLetterlike Symbols (U+2100–U+214F)
  • Plane0 — Basic Multilingual Plane
  • ScriptCommon
  • CategoryLu — Uppercase Letter
  • Unicode version1.1 (1993)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthN — Neutral
  • MirroredNo

About this character

U+211A (ℚ) is DOUBLE-STRUCK CAPITAL Q, an uppercase letter in the Letterlike Symbols block. Its script is Common: it is shared by many writing systems rather than belonging to one. It was added in Unicode 1.1 (1993).

It is a font variant of U+0051 Q (compatibility decomposition <font>). NFC and NFD leave it alone, but NFKC and NFKD replace it with U+0051 Q. Search engines, identifier checks and username systems that apply NFKC will treat the two as the same text.

How to type ℚ

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Encodings & escapes

UTF-8 encoder →
UTF-8E2 84 9A3 bytes
UTF-16211A1 code unit
UTF-320000211A4 bytes
HTML named&Qopf;named character reference
HTML named&rationals;named character reference
HTML decimal&#8474;
HTML hex&#x211A;
CSS\211Ain content: "…"
JavaScript\u211A
JSON\u211A
Python\u211A
Python\N{DOUBLE-STRUCK CAPITAL Q}by name
Java / C#\u211A
C / C++\u211Auniversal character name
Rust / Swift / PHP\u{211A}
Go\u211A
Ruby\u211A
Excel / Sheets=UNICHAR(8474)
URL-encoded%E2%84%9Apercent-encoded UTF-8
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Normalization forms

Normalizer →
NFCunchanged
NFDunchanged
NFKCU+0051 Q
NFKDU+0051 Q
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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+0051QLatin Capital Letter Q U+1D410𝐐Mathematical Bold Capital Q U+1D444𝑄Mathematical Italic Capital Q U+1D478𝑸Mathematical Bold Italic Capital Q U+1D4AC𝒬Mathematical Script Capital Q U+1D4E0𝓠Mathematical Bold Script Capital Q U+1D514𝔔Mathematical Fraktur Capital Q U+1D57C𝕼Mathematical Bold Fraktur Capital Q U+1D5B0𝖰Mathematical Sans-Serif Capital Q U+1D5E4𝗤Mathematical Sans-Serif Bold Capital Q U+1D618𝘘Mathematical Sans-Serif Italic Capital Q U+1D64C𝙌Mathematical Sans-Serif Bold Italic Capital Q U+1D680𝚀Mathematical Monospace Capital Q U+2D55ⵕTifinagh Letter Yarr U+1CCE6𜳦Outlined Latin Capital Letter Q
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Nearby in Letterlike Symbols

All in block →
U+2114℔L B Bar Symbol U+2115ℕDouble-Struck Capital N U+2116№Numero Sign U+2117℗Sound Recording Copyright U+2118℘Script Capital P U+2119ℙDouble-Struck Capital P U+211BℛScript Capital R U+211CℜBlack-Letter Capital R U+211DℝDouble-Struck Capital R U+211E℞Prescription Take U+211F℟Response U+2120℠Service Mark