Roman Numeral Three (Ⅲ) is the Unicode character at U+2162 in the Number Forms block. It looks like an uppercase roman III and is used for chapter labels, outlines, and formal numbering.
Remember
Character Ⅲ
Unicode U+2162
Hex entity Ⅲ
Decimal Ⅲ
CSS escape \2162
Named entity (none)
All of these produce the same glyph: Ⅲ. Prefer the Unicode character (or its entities) when you need a true roman numeral; type the letters III 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
Ⅲ
HTML text (UTF-8)
Hex entity
Ⅲ
HTML markup
Decimal entity
Ⅲ
HTML markup
CSS escape
\2162
Stylesheet content
Named entity
—
Not defined in HTML5
When to use which
Situation
Use
Need the roman numeral glyph Ⅲ
Type Ⅲ, or Ⅲ / Ⅲ
Generated text via ::before / ::after
content: "\2162"
Lowercase roman numeral three
Use ⅲ (U+2172)
Ordinary letters III (not a numeral)
Type III
Looking for &romanIII; or similar
Does not exist — use numeric form
See it
Live Preview
Roman Numeral Three rendered in common writing contexts.
Inline textⅢ. Glossary
Large glyphⅢ
OutlineⅠ One Ⅱ Two Ⅲ Three
Monospacesection Ⅲ → notes
With entitiesHex: Ⅲ | Decimal: Ⅲ
Code
Complete HTML Example
One page that shows Roman Numeral Three 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 Ⅲ in a single document.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Roman Numeral Three (Ⅲ) in HTML</title>
<style>
#point::after {
content: "\2162";
}
</style>
</head>
<body>
<p>Roman Numeral 3 using Hex Code: Ⅲ</p>
<p>Roman Numeral 3 using HTML Code: Ⅲ</p>
<p id="point">Roman Numeral 3 using CSS Entity: </p>
<p>Typed directly: Ⅲ</p>
</body>
</html>
Roman Numeral 3 using Hex Code: Ⅲ
Roman Numeral 3 using HTML Code: Ⅲ
Roman Numeral 3 using CSS Entity: Ⅲ
Typed directly: Ⅲ
How It Works
1. Hex:U+2162 → Ⅲ in HTML. The browser turns it into Ⅲ.
2. Decimal: same code point as 8546 → Ⅲ. Same result as hex.
3. CSS: use \2162 in content (not an HTML entity). #point::after appends that Ⅲ after the paragraph text.
4. Typed Ⅲ: fine in UTF-8 pages. All four lines show the same roman numeral.
Pitfalls & Tips
Common mistakes when working with Roman Numeral Three entities.
Named?
No named entity
HTML5 does not define &romanIII; or similar. Use numeric forms.
CSS vs HTML
Do not mix escapes
\2162 belongs in CSS. Ⅲ / Ⅲ belong in HTML.
Ⅲ vs III vs ⅲ
Different characters
Ⅲ is U+2162; letters III are Basic Latin; lowercase ⅲ is U+2172.
Fonts
Check the glyph
Number Forms support varies by font. If Ⅲ is missing, fall back to III or another font.
Semicolon
End references
Always finish with ; — write Ⅲ, not Ⅲ.
Lists
CSS list-style
For auto-numbered roman lists, prefer list-style-type: upper-roman instead of hard-coding Ⅲ.
Compatibility
Browser Support
Roman Numeral Three (U+2162) and its numeric entity forms (Ⅲ, Ⅲ, CSS \\2162) are supported in all mainstream browsers. Glyph shape depends on the font.
✓ Universal support
Roman 3 (Ⅲ)
Encode with hex, decimal, or CSS escape — or paste Ⅲ 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+2162 / entitiesFull support
Bottom line: Use Ⅲ or Ⅲ for the Unicode glyph, and \\2162 only inside CSS content. Prefer the letters III for ordinary text.
Remember
Key Takeaways
Unicode: Roman Numeral Three is U+2162 (decimal 8546).
HTML: use Ⅲ or Ⅲ when you need an entity.
CSS: use \2162 inside content for generated text.
Default: use Ⅲ for roman outlines; type III for ordinary letters.
One line:U+2162 → Ⅲ / Ⅲ / CSS \2162, or paste Ⅲ.
Frequently Asked Questions
Use Ⅲ (hex), Ⅲ (decimal), or the CSS escape \2162 in the content property. All render Ⅲ. You can also paste Ⅲ directly when your file is UTF-8.
U+2162 (hex 2162, decimal 8546). It belongs to the Number Forms Unicode block.
No. HTML5 does not define a named entity for Ⅲ. Use numeric references like Ⅲ or Ⅲ.
Use it for chapter labels, outlines, and typography that needs a true uppercase roman numeral glyph. For ordinary text, typing III is usually enough.
No. The Latin letters I, I, and I are separate Basic Latin characters. Lowercase roman numeral three is U+2172 (ⅲ). Uppercase roman numeral three is U+2162 (Ⅲ) — a different character.
HTML entities (Ⅲ or Ⅲ) go in markup. The CSS escape \2162 is used in stylesheets (usually in the content property of ::before/::after). Both render Ⅲ.
🤔
Did you know?
Uppercase roman numeral three is Unicode U+2162 (decimal 8546). HTML5 has no named entity for it — use Ⅲ or Ⅲ. It is a different character from the letters III and from lowercase roman ⅲ (U+2172).
