Roman Numeral Nine (Ⅸ) is the Unicode character at U+2168 in the Number Forms block. It is a single glyph for the value 9 in uppercase roman style — not the same as typing the letters IX.
Remember
Character Ⅸ
Unicode U+2168
Hex entity Ⅸ
Decimal Ⅸ
CSS escape \2168
Named entity (none)
All of these produce the same glyph: Ⅸ. Prefer this character when you need a true roman numeral glyph; type the letters IX when you only need ordinary text.
Reference
Quick Reference
One table for every form you will actually use.
Form
Code
Where it goes
Direct character
Ⅸ
HTML text (UTF-8)
Hex entity
Ⅸ
HTML markup
Decimal entity
Ⅸ
HTML markup
CSS escape
\2168
Stylesheet content
Named entity
—
Not defined in HTML5
When to use which
Situation
Use
Need the roman numeral glyph Ⅸ
Type Ⅸ, or Ⅸ / Ⅸ
Generated text via ::before / ::after
content: "\2168"
Lowercase roman numeral nine
Use ⅸ (U+2178)
Ordinary letters IX (not a numeral)
Type IX
Looking for &romanIX; or similar
Does not exist — use numeric form
See it
Live Preview
Roman Numeral Nine rendered in common UI contexts.
Inline textⅨ. Index
Large glyphⅨ
Outline listⅦ Seven Ⅷ Eight Ⅸ Nine
MonospaceSECTION Ⅸ → NOTES
With entitiesHex: Ⅸ | Decimal: Ⅸ
Code
Complete HTML Example
One page that shows Roman Numeral Nine with the hex entity, decimal entity, CSS escape, and a typed character. Use View Output or open the live editor.
Hex + Decimal + CSS + Typed
All four ways to produce Ⅸ in a single document.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Roman Numeral Nine (Ⅸ) in HTML</title>
<style>
#point::after {
content: "\2168";
}
</style>
</head>
<body>
<p>Roman 9 using Hex Code: Ⅸ</p>
<p>Roman 9 using HTML Code: Ⅸ</p>
<p id="point">Roman 9 using CSS Entity: </p>
<p>Typed directly: Ⅸ</p>
</body>
</html>
Roman 9 using Hex Code: Ⅸ
Roman 9 using HTML Code: Ⅸ
Roman 9 using CSS Entity: Ⅸ
Typed directly: Ⅸ
How It Works
1. Hex:U+2168 → Ⅸ in HTML. The browser turns it into Ⅸ.
2. Decimal: same code point as 8552 → Ⅸ. Same result as hex.
3. CSS: use \2168 in content (not an HTML entity). #point::after appends that Ⅸ after the paragraph text.
4. Typed Ⅸ: fine in UTF-8 pages. All four lines show the same roman numeral.
Pitfalls & Tips
Common mistakes when working with Roman Numeral Nine entities.
Named?
No named entity
HTML5 does not define &romanIX; or similar. Use numeric forms.
CSS vs HTML
Do not mix escapes
\2168 belongs in CSS. Ⅸ / Ⅸ belong in HTML.
Ⅸ vs IX vs ⅸ
Different characters
Ⅸ is U+2168; letters IX are Basic Latin; lowercase ⅸ is U+2178.
Fonts
Check the glyph
Number Forms support varies by font. If Ⅸ is missing, fall back to IX or another font.
Semicolon
End references
Always finish with ; — write Ⅸ, not Ⅸ.
Lists
CSS list-style
For auto-numbered roman lists, prefer list-style-type: upper-roman instead of hard-coding Ⅸ.
Compatibility
Browser Support
Roman Numeral Nine (U+2168) and its numeric entity forms (Ⅸ, Ⅸ, CSS \\2168) are supported in all mainstream browsers. Glyph shape depends on the font.
✓ Universal support
Roman 9 (Ⅸ)
Encode with hex, decimal, or CSS escape — or paste Ⅸ in UTF-8 HTML.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerAll versions
Yes
U+2168 / entitiesFull support
Bottom line: Use Ⅸ or Ⅸ for the Unicode glyph, and \\2168 only inside CSS content. Prefer the letters IX for ordinary text.
Remember
Key Takeaways
Unicode: Roman Numeral Nine is U+2168 (decimal 8552).
HTML: use Ⅸ or Ⅸ when you need an entity.
CSS: use \2168 inside content for generated text.
Default: use Ⅸ for roman outlines; type IX for ordinary letters.
One line:U+2168 → Ⅸ / Ⅸ / CSS \2168, or paste Ⅸ.
Frequently Asked Questions
Use Ⅸ (hex), Ⅸ (decimal), or the CSS escape \2168 in the content property. All render Ⅸ. You can also paste Ⅸ directly when your file is UTF-8.
U+2168 (hex 2168, decimal 8552). It belongs to the Number Forms Unicode block.
No. HTML5 does not define a named entity for Ⅸ. Use numeric references like Ⅸ or Ⅸ.
Use it for outline labels, chapter markers, and typography that needs a true uppercase roman numeral glyph. For ordinary text, typing IX is usually enough.
No. The Latin letters that form IX are separate Basic Latin characters. Lowercase roman numeral nine is U+2178 (ⅸ). Uppercase roman numeral nine is U+2168 (Ⅸ) — a different character.
HTML entities (Ⅸ or Ⅸ) go in markup. The CSS escape \2168 is used in stylesheets (usually in the content property of ::before/::after). Both render Ⅸ.
🤔
Did you know?
Roman numeral nine is Unicode U+2168 (decimal 8552). HTML5 has no named entity for it — use Ⅸ or Ⅸ. It is a different character from the letters IX and from lowercase roman ⅸ (U+2178).
