Fullwidth Number Sign
Copy and paste the fullwidth number sign symbol ＃ (U+FF03) instantly. Part of the Halfwidth and Fullwidth Forms Unicode block.
Works everywhere: websites, documents, social media, code editors
Character Codes
About This Symbol
- Name
- Fullwidth Number Sign
- Unicode Block
- Halfwidth and Fullwidth Forms
- Code Point
- U+FF03
The Fullwidth Number Sign (＃) is a Unicode character assigned to the Halfwidth and Fullwidth Forms block at code point U+FF03. This block contains characters used across a variety of applications including technical documentation, web development, mathematical notation, and everyday digital communication. The fullwidth number sign symbol can be inserted directly into text or referenced through its HTML entity, CSS code, or JavaScript escape sequence for use in websites and applications.
How to Use
- 1.Click "Copy Symbol" above to copy ＃ to your clipboard
- 2.Paste it anywhere with Ctrl+V (or Cmd+V on Mac)
- 3.Or use the HTML entity
＃in your code - 4.For CSS, use
\FF03with the content property
Understanding Fullwidth Number Sign
At code point U+FF03, the fullwidth number sign (＃) occupies a carefully chosen position within the Halfwidth and Fullwidth Forms allocation. The Unicode Consortium assigned this character to address the need for a reliable, cross-platform representation of this symbol in electronic documents and interfaces.
The hexadecimal value FF03 places this character at decimal position 65283 in the Unicode table. When embedding this character in source code, developers can choose between the HTML numeric reference ＃, the CSS escape \FF03, or the JavaScript literal \u{FF03}. Each method guarantees correct rendering regardless of the file encoding.
Known by its descriptive name referencing "fullwidth number," this character serves a specific role that generic symbols cannot fill. It appears in specialized typography, technical standards, and digital content where precision in symbol choice directly affects meaning or layout.