Xerobit

Cube Root Symbol ∛: Copy and Paste

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

  • Symbol
    ∛
  • Unicode
    U+221B
  • HTML (decimal)
    ∛
  • HTML (hex)
    ∛
  • CSS
    \221B
  • JavaScript
    \u221B

Cube Root Symbol codes and values

FormatValue
UnicodeU+221B
HTML (decimal)∛
HTML (hex)∛
CSS\221B
JavaScript\u221B

The official Unicode name is "Cube Root".

How to type the cube root symbol

Windows

  1. In Microsoft Word, type 221B and press Alt + X to turn the code into ∛.
  2. 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 "cube root".
  2. Or add the "Unicode Hex Input" keyboard in System Settings, hold Option and type 221B.

Linux

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

Web pages

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

Encoding details

EncodingValue
Code pointU+221B (decimal 8731)
UTF-8 bytesE2 88 9B
URL encoded%E2%88%9B
CategorySm

What the cube root symbol means

The cube root symbol indicates the mathematical operation of finding a number that, when multiplied by itself three times, yields the original value. Algebra and geometry use it to solve cubic equations.

Using the cube root symbol well

Use Unicode U+221B to place this radical in text. For better formatting in publications, rely on equation editors that automatically adjust the radical height to fit the enclosed expression.

Characters next to it in Unicode

CharacterCodeName
∘U+2218Ring Operator
∙U+2219Bullet Operator
√U+221ASquare Root
∜U+221CFourth Root
∝U+221DProportional To
∞U+221EInfinity

FAQ

What is the Unicode for the cube root symbol?

The cube root symbol ∛ is U+221B (Cube Root).

How do I type ∛ on a keyboard?

There is no classic Alt code for it. On Windows type 221B in Word and press Alt + X, on Mac use the Character Viewer, and on Linux press Ctrl + Shift + U then 221b.

What is the HTML code for ∛?

Use ∛. The hexadecimal form is ∛.

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