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HTML Entity Detail
HTML Entity - Roman Numeral One
Roman Numeral One is a Roman numerals and number forms used in outlines and formal documents. This HTML entity enables web developers to display this character reliably across all browsers without encoding issues.
Symbol preview
Ⅰ
Unicode
U+2160
HTML entity
Ι
CSS code
\2160
Usage Examples
Use this HTML entity in chapter headings, copyright dates, clock faces, and formal outlines. Example: Chapter Ⅴ.
Related Entities
Common Mistakes
⚠️
Mistake: Using Latin capital I instead of Ⅰ for Roman numeral one
Fix: Roman numeral Ⅰ is a single-width glyph. Latin letter I may not match the font style and weight of other Roman numeral characters.
Roman Numeral One
Select any code to highlight it before copying.
Category: Number Forms
| Unicode | U+2160 |
|---|---|
| Hex Code | Ⅰ |
| HTML Code | Ⅰ |
| HTML Entity | Ι |
| CSS Code | \2160 |
| Windows Shortcut | |
| Mac Shortcut | |
HTML code example
CSS code example
Last updated: 21 Jun 2026
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