Xerobit

Square Root Symbol √: Copy and Paste

The square root symbol is √. Click the button to copy it, or use the Unicode value U+221A, the HTML code or the keyboard shortcuts below to type it anywhere.

  • Symbol
    √
  • Unicode
    U+221A
  • HTML (decimal)
    √
  • HTML (hex)
    √
  • HTML entity
    √
  • CSS
    \221A
  • JavaScript
    \u221A
  • Windows Alt code
    Alt+251

Square Root Symbol codes and values

FormatValue
UnicodeU+221A
HTML (decimal)√
HTML (hex)√
HTML entity√
CSS\221A
JavaScript\u221A
Windows Alt codeAlt+251

The official Unicode name is "Square Root".

How to type the square root symbol

Windows

  1. Hold Alt and type 251 on the numeric keypad, then release. (Num Lock must be on.)
  2. In Microsoft Word, type 221A and press Alt + X to turn the code into √.
  3. Or press Win + . to open the emoji and symbol panel and search for it.

Mac

  1. Press Control + Command + Space to open the Character Viewer and search for "square root".
  2. Or add the "Unicode Hex Input" keyboard in System Settings, hold Option and type 221A.

Linux

  1. In GTK apps press Ctrl + Shift + U, type 221a and press Enter.

Web pages

Write √ or √ in HTML, or paste the character directly into a UTF-8 page.

Encoding details

EncodingValue
Code pointU+221A (decimal 8730)
UTF-8 bytesE2 88 9A
URL encoded%E2%88%9A
CategorySm

What the square root symbol means

This mathematical sign indicates the principal square root of the number placed beside or beneath it. Students and scientists use it to solve equations involving powers, areas, and geometric distances.

Using the square root symbol well

In plain text environments, write it using the Unicode character U+221A. For complex expressions on the web, consider MathML or a rendering library to draw the overline correctly over multiple terms.

Characters next to it in Unicode

CharacterCodeName
∗U+2217Asterisk Operator
∘U+2218Ring Operator
∙U+2219Bullet Operator
∛U+221BCube Root
∜U+221CFourth Root
∝U+221DProportional To

FAQ

What is the Unicode for the square root symbol?

The square root symbol √ is U+221A (Square Root).

How do I type √ on a keyboard?

On Windows hold Alt and type 251 on the numeric keypad. On Mac use the Character Viewer (Control + Command + Space), and on Linux use Ctrl + Shift + U then 221a.

What is the HTML code for √?

Use √ or the named entity √. The hexadecimal form is √.

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