Xerobit

Empty Set Symbol ∅: Copy and Paste

The empty set symbol is ∅. Click the button to copy it, or use the Unicode value U+2205, the HTML code or the keyboard shortcuts below to type it anywhere.

  • Symbol
    ∅
  • Unicode
    U+2205
  • HTML (decimal)
    ∅
  • HTML (hex)
    ∅
  • HTML entity
    ∅
  • CSS
    \2205
  • JavaScript
    \u2205

Empty Set Symbol codes and values

FormatValue
UnicodeU+2205
HTML (decimal)∅
HTML (hex)∅
HTML entity∅
CSS\2205
JavaScript\u2205

The official Unicode name is "Empty Set".

How to type the empty set symbol

Windows

  1. In Microsoft Word, type 2205 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 "empty set".
  2. Or add the "Unicode Hex Input" keyboard in System Settings, hold Option and type 2205.

Linux

  1. In GTK apps press Ctrl + Shift + U, type 2205 and press Enter.

Web pages

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

Encoding details

EncodingValue
Code pointU+2205 (decimal 8709)
UTF-8 bytesE2 88 85
URL encoded%E2%88%85
CategorySm

What the empty set symbol means

The empty set symbol represents a set containing no elements in mathematics. It is used in set theory, logic, and related fields to denote null sets or impossible conditions within formal proofs.

Using the empty set symbol well

Use the Unicode code point U+2205 when typing this character. Ensure your chosen font supports mathematical symbols so it renders correctly for all readers.

Characters next to it in Unicode

CharacterCodeName
∂U+2202Partial Differential
∃U+2203There Exists
∄U+2204There Does Not Exist
∆U+2206Increment
∇U+2207Nabla
∈U+2208Element Of

FAQ

What is the Unicode for the empty set symbol?

The empty set symbol ∅ is U+2205 (Empty Set).

How do I type ∅ on a keyboard?

There is no classic Alt code for it. On Windows type 2205 in Word and press Alt + X, on Mac use the Character Viewer, and on Linux press Ctrl + Shift + U then 2205.

What is the HTML code for ∅?

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

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