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Square root symbol √ — HTML code and how to type it

The square root symbol √ is √ in HTML and U+221A in Unicode. Copy any form below.

Updated

Character√
HTML named entity√
HTML decimal√
HTML hex√
UnicodeU+221A
CSS content"\221A"
JavaScript"\u221A"
URL encoded%E2%88%9A
UTF-8 bytesE2 88 9A

When to use it

The radical sign: √9 = 3.

In HTML, CSS and JavaScript

<p>&radic;</p>           <!-- or the character itself in a UTF-8 page -->

.note::before { content: "\221A"; }

const s = "\u221A";

In a page saved as UTF-8 (the default today) you can paste the character directly; the entity is only needed when it must survive a non-UTF-8 system. Encode or decode whole texts with the HTML Entity Encoder.

How to type square root symbol

  • Windows: press Win + . to open the emoji and symbol panel and search for it, or type 221A then Alt + X in Word.
  • Mac: Option + V (US keyboard layout).
  • Linux: Ctrl + Shift + U, then 221A and Enter.
HTML Entity EncoderEscape < > & " so text is safe to show in HTML, convert accents and symbols to named or numeric entities, or decode entity-filled HTML back to plain text.
Open the tool

Frequently asked questions

What is the HTML code for the square root symbol?
&radic; (named), &#8730; (decimal) or &#x221A; (hex). All three produce the same character.
What is the Unicode for the square root symbol?
U+221A. In CSS write "\221A" and in JavaScript "\u221A".
How do I type the square root symbol on a keyboard?
On Windows open the symbol panel with Win + . and search for it. On a Mac press Option + V.