Copy Formats & Codes
Description & Usage
The Empty Set Symbol is ∅. Its Unicode code point is U+2205, HTML entity is ∅, CSS escape is \\2205, and JavaScript escape is \u2205.
Empty set (∅) is a technical or utility text sign for labels, shortcuts, contact information, diagrams, and documentation within math symbols in the sets group.
Practical use
Use Empty set in labels, shortcuts, contact text, diagrams, or implementation notes where a compact sign improves scanning.
Compatibility
Empty set is a Unicode character, but exact shape, weight, spacing, and fallback behavior depend on the font and platform.
Use the primary copy button for the actual character. Use the implementation codes when you need to place the same symbol in HTML, CSS, JavaScript, or technical documentation.
Related Symbols
View categoryWhere this category helps
Technical notes
Use Math Symbols to label shortcuts, contact details, diagrams, references, and compact UI text.
Documentation and code
Use Unicode and escape formats when the same sign must be represented in HTML, CSS, JavaScript, or technical docs. For math symbols, keep the surrounding label and detail notes aligned with the intended use.
Readable alternatives
Keep a text label near unfamiliar symbols when accessibility, localization, or quick scanning matters. For math symbols, keep the surrounding label and detail notes aligned with the intended use.
FAQ
How do I copy the Empty Set?
Use the copy button on SymbolCopy to copy Empty Set to your clipboard, then paste it into your document, app, website, or social post.
What is the Unicode for Empty Set?
The Unicode value for Empty Set is U+2205.