UnicodeCharactercom
√
U+221A · SQUARE ROOT

Square Root

  • CodepointU+221A
  • NameSQUARE ROOT
  • Decimal8730
  • BlockMathematical Operators (U+2200–U+22FF)
  • Plane0 — Basic Multilingual Plane
  • ScriptCommon
  • CategorySm — Math Symbol
  • Unicode version1.1 (1993)
  • Bidi classON — Other Neutral
  • Combining class0
  • East Asian widthA — Ambiguous
  • MirroredYes

About this character

U+221A (√) is SQUARE ROOT, a mathematical symbol in the Mathematical Operators 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 mirrored character: in right-to-left text renderers draw its mirror image.

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 88 9A3 bytes
UTF-16221A1 code unit
UTF-320000221A4 bytes
HTML named√named character reference
HTML named√named character reference
HTML decimal√
HTML hex√
CSS\221Ain content: "…"
JavaScript\u221A
JSON\u221A
Python\u221A
Python\N{SQUARE ROOT}by name
Java / C#\u221A
C / C++\u221Auniversal character name
Rust / Swift / PHP\u{221A}
Go\u221A
Ruby\u221A
Excel / Sheets=UNICHAR(8730)
URL-encoded%E2%88%9Apercent-encoded UTF-8
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Nearby in Mathematical Operators

All in block →
U+2214∔Dot Plus U+2215∕Division Slash U+2216∖Set Minus U+2217∗Asterisk Operator U+2218∘Ring Operator U+2219∙Bullet Operator U+221B∛Cube Root U+221C∜Fourth Root U+221D∝Proportional to U+221E∞Infinity U+221F∟Right Angle U+2220∠Angle