UnicodeCharactercom
⇔
U+21D4 · LEFT RIGHT DOUBLE ARROW

Left Right Double Arrow

  • CodepointU+21D4
  • NameLEFT RIGHT DOUBLE ARROW
  • Decimal8660
  • BlockArrows (U+2190–U+21FF)
  • Plane0 — Basic Multilingual Plane
  • ScriptCommon
  • CategorySm — Math Symbol
  • Unicode version1.1 (1993)
  • Bidi classON — Other Neutral
  • Combining class0
  • East Asian widthA — Ambiguous
  • MirroredNo

About this character

U+21D4 (⇔) is LEFT RIGHT DOUBLE ARROW, a mathematical symbol in the Arrows 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).

Its East Asian Width is Ambiguous: it takes one column in Western contexts and two in East Asian legacy contexts, a common cause of misaligned tables in terminals.

How to type ⇔

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Encodings & escapes

UTF-8 encoder →
UTF-8E2 87 943 bytes
UTF-1621D41 code unit
UTF-32000021D44 bytes
HTML named⇔named character reference
HTML named⇔named character reference
HTML named⇔named character reference
HTML decimal⇔
HTML hex⇔
CSS\21D4in content: "…"
JavaScript\u21D4
JSON\u21D4
Python\u21D4
Python\N{LEFT RIGHT DOUBLE ARROW}by name
Java / C#\u21D4
C / C++\u21D4universal character name
Rust / Swift / PHP\u{21D4}
Go\u21D4
Ruby\u21D4
Excel / Sheets=UNICHAR(8660)
URL-encoded%E2%87%94percent-encoded UTF-8
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Characters built on ⇔

U+21CE⇎Left Right Double Arrow with Stroke
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Nearby in Arrows

All in block →
U+21CE⇎Left Right Double Arrow with Stroke U+21CF⇏Rightwards Double Arrow with Stroke U+21D0⇐Leftwards Double Arrow U+21D1⇑Upwards Double Arrow U+21D2⇒Rightwards Double Arrow U+21D3⇓Downwards Double Arrow U+21D5⇕Up Down Double Arrow U+21D6⇖North West Double Arrow U+21D7⇗North East Double Arrow U+21D8⇘South East Double Arrow U+21D9⇙South West Double Arrow U+21DA⇚Leftwards Triple Arrow