Roman Numeral Four (Ⅳ) is the Unicode character at U+2163 in the Number Forms block. It looks like an uppercase roman IV and is used for outlines, chapter labels, and formal numbering.
Remember
Character Ⅳ
Unicode U+2163
Hex entity Ⅳ
Decimal Ⅳ
CSS escape \2163
Named entity (none)
All of these produce the same glyph: Ⅳ. Prefer the Unicode character (or its entities) when you need a true roman numeral; type the letters IV 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
Ⅳ
HTML text (UTF-8)
Hex entity
Ⅳ
HTML markup
Decimal entity
Ⅳ
HTML markup
CSS escape
\2163
Stylesheet content
Named entity
—
Not defined in HTML5
When to use which
Situation
Use
Need the roman numeral glyph Ⅳ
Type Ⅳ, or Ⅳ / Ⅳ
Generated text via ::before / ::after
content: "\2163"
Lowercase roman numeral four
Use ⅳ (U+2173)
Ordinary letters IV (not a numeral)
Type IV
Looking for &romanIV; or similar
Does not exist — use numeric form
See it
Live Preview
Roman Numeral Four rendered in common writing contexts.
Inline textⅣ. Index
Large glyphⅣ
OutlineⅡ Two Ⅲ Three Ⅳ Four
MonospaceSECTION Ⅳ → NOTES
With entitiesHex: Ⅳ | Decimal: Ⅳ
Code
Complete HTML Example
One page that shows Roman Numeral Four 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 Ⅳ in a single document.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Roman Numeral Four (Ⅳ) in HTML</title>
<style>
#point::after {
content: "\2163";
}
</style>
</head>
<body>
<p>Roman 4 using Hex Code: Ⅳ</p>
<p>Roman 4 using HTML Code: Ⅳ</p>
<p id="point">Roman 4 using CSS Entity: </p>
<p>Typed directly: Ⅳ</p>
</body>
</html>
Roman 4 using Hex Code: Ⅳ
Roman 4 using HTML Code: Ⅳ
Roman 4 using CSS Entity: Ⅳ
Typed directly: Ⅳ
How It Works
1. Hex:U+2163 → Ⅳ in HTML. The browser turns it into Ⅳ.
2. Decimal: same code point as 8547 → Ⅳ. Same result as hex.
3. CSS: use \2163 in content (not an HTML entity). #point::after appends that Ⅳ after the paragraph text.
4. Typed Ⅳ: fine in UTF-8 pages. All four lines show the same roman numeral.
Pitfalls & Tips
Common mistakes when working with Roman Numeral Four entities.
Named?
No named entity
HTML5 does not define &romanIV; or similar. Use numeric forms.
CSS vs HTML
Do not mix escapes
\2163 belongs in CSS. Ⅳ / Ⅳ belong in HTML.
Ⅳ vs IV vs ⅳ
Different characters
Ⅳ is U+2163; letters IV are Basic Latin; lowercase ⅳ is U+2173.
Fonts
Check the glyph
Number Forms support varies by font. If Ⅳ is missing, fall back to IV or another font.
Semicolon
End references
Always finish with ; — write Ⅳ, not Ⅳ.
Lists
CSS list-style
For auto-numbered roman lists, prefer list-style-type: upper-roman instead of hard-coding Ⅳ.
Compatibility
Browser Support
Roman Numeral Four (U+2163) and its numeric entity forms (Ⅳ, Ⅳ, CSS \\2163) are supported in all mainstream browsers. Glyph shape depends on the font.
✓ Universal support
Roman 4 (Ⅳ)
Encode with hex, decimal, or CSS escape — or paste Ⅳ 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+2163 / entitiesFull support
Bottom line: Use Ⅳ or Ⅳ for the Unicode glyph, and \\2163 only inside CSS content. Prefer the letters IV for ordinary text.
Remember
Key Takeaways
Unicode: Roman Numeral Four is U+2163 (decimal 8547).
HTML: use Ⅳ or Ⅳ when you need an entity.
CSS: use \2163 inside content for generated text.
Default: use Ⅳ for roman outlines; type IV for ordinary letters.
One line:U+2163 → Ⅳ / Ⅳ / CSS \2163, or paste Ⅳ.
Frequently Asked Questions
Use Ⅳ (hex), Ⅳ (decimal), or the CSS escape \2163 in the content property. All render Ⅳ. You can also paste Ⅳ directly when your file is UTF-8.
U+2163 (hex 2163, decimal 8547). It belongs to the Number Forms Unicode block.
No. HTML5 does not define a named entity for Ⅳ. Use numeric references like Ⅳ or Ⅳ.
Use it for outline labels, chapter markers, and typography that needs a true uppercase roman numeral glyph. For ordinary text, typing IV is usually enough.
No. The Latin letters I and V are separate Basic Latin characters. Lowercase roman numeral four is U+2173 (ⅳ). Uppercase roman numeral four is U+2163 (Ⅳ) — a different character.
HTML entities (Ⅳ or Ⅳ) go in markup. The CSS escape \2163 is used in stylesheets (usually in the content property of ::before/::after). Both render Ⅳ.
🤔
Did you know?
Uppercase roman numeral four is Unicode U+2163 (decimal 8547). HTML5 has no named entity for it — use Ⅳ or Ⅳ. It is a different character from the letters IV and from lowercase roman ⅳ (U+2173).
