Fullwidth Number Sign Letter
＃ is the fullwidth (wide) form of the number sign character, useful for consistent East Asian typography.
U+FF03
＃ (U+FF03) is a fullwidth version of the number sign. It’s commonly used when you need wide characters to align visually in East Asian layouts. This page helps you copy the symbol and use it in HTML, CSS, and JavaScript.
Fullwidth Number Sign Letter Meaning
The character ＃ is known as the “FULLWIDTH NUMBER SIGN” and is the wide (fullwidth) variant of the standard #. Visually, it occupies more horizontal space, which can help keep text alignment consistent in fullwidth or CJK-style layouts. Like #, it may appear in contexts such as tags, labels, and denoting “number” or “hash” in plain text. However, because it is a different Unicode code point than the regular #, it can behave differently in systems that treat fullwidth and halfwidth characters separately.
Common uses
- •Displaying hash-style tags in designs that require fullwidth alignment
- •Creating typography-consistent headings in fullwidth/CJK text layouts
- •Use in UI labels or form text where wide characters are preferred for spacing
- •Copy/paste symbols for posters, badges, or social posts using East Asian style fonts
- •Developing content that must preserve fullwidth character intent when pasted into text systems
Examples
＃ Fullwidth Number Sign (U+FF03)
- ＃商品名 ＃１２
- ＃タグ: ＃design
- ＃版面番号 ＃03
- ＃更新 ＃1
- ＃確認: ＃ABC-123
Variations
Technical codes
| Unicode | U+FF03 | |
| HTML Entity | ＃ | |
| HTML Code | ＃ | |
| CSS | \FF03 |
FAQ
What does the Fullwidth Number Sign letter mean?
The character ＃ is known as the “FULLWIDTH NUMBER SIGN” and is the wide (fullwidth) variant of the standard #. Visually, it occupies more horizontal space, which can help keep text alignment consistent in fullwidth or CJK-style layouts. Like #, it may appear in contexts such as tags, labels, and denoting “number” or “hash” in plain text. However, because it is a different Unicode code point than the regular #, it can behave differently in systems that treat fullwidth and halfwidth characters separately.
How is ＃ different from the regular #?
They are different Unicode characters. ＃ is U+FF03 (fullwidth number sign), while the regular # is a different code point and may render with different width and behavior in some systems.
What is the Unicode code point for ＃?
The Unicode code point for ＃ is U+FF03.
How can I use ＃ in HTML?
You can use the HTML entity: ＃
How can I use ＃ in CSS or JavaScript?
CSS escape: \\FF03. JavaScript Unicode escape: \\u{FF03}.