Roman Numeral One Thousand (Ⅿ) is the Unicode character at U+216F in the Number Forms block. It looks like an uppercase roman M and is used for outlines, chapter labels, and formal numbering.
Remember
Character Ⅿ
Unicode U+216F
Hex entity Ⅿ
Decimal Ⅿ
CSS escape \216F
Named entity (none)
All of these produce the same glyph: Ⅿ. Prefer the Unicode character (or its entities) when you need a true roman numeral; type the letter M 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
Ⅿ
HTML text (UTF-8)
Hex entity
Ⅿ
HTML markup
Decimal entity
Ⅿ
HTML markup
CSS escape
\216F
Stylesheet content
Named entity
—
Not defined in HTML5
When to use which
Situation
Use
Need the roman numeral glyph Ⅿ
Type Ⅿ, or Ⅿ / Ⅿ
Generated text via ::before / ::after
content: "\216F"
Lowercase roman numeral one thousand
Use ⅿ (U+217F)
Ordinary letter M (not a numeral)
Type M (U+004D)
Looking for &romanM; or similar
Does not exist — use numeric form
See it
Live Preview
Roman Numeral One Thousand rendered in common writing contexts.
Inline textⅯ. Appendix
Large glyphⅯ
OutlineⅮ Five hundred Ⅿ Thousand ↀ CD form
Monospacesection Ⅿ → appendix
With entitiesHex: Ⅿ | Decimal: Ⅿ
Code
Complete HTML Example
One page that shows Roman Numeral One Thousand 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 Ⅿ in a single document.
html
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Roman Numeral One Thousand (Ⅿ) in HTML</title>
<style>
#point::after {
content: "\216F";
}
</style>
</head>
<body>
<p>Roman Numeral 1000 using Hex Code: Ⅿ</p>
<p>Roman Numeral 1000 using HTML Code: Ⅿ</p>
<p id="point">Roman Numeral 1000 using CSS Entity: </p>
<p>Typed directly: Ⅿ</p>
</body>
</html>
Roman Numeral 1000 using Hex Code: Ⅿ
Roman Numeral 1000 using HTML Code: Ⅿ
Roman Numeral 1000 using CSS Entity: Ⅿ
Typed directly: Ⅿ
How It Works
1. Hex:U+216F → Ⅿ in HTML. The browser turns it into Ⅿ.
2. Decimal: same code point as 8559 → Ⅿ. Same result as hex.
3. CSS: use \216F in content (not an HTML entity). #point::after appends that Ⅿ after the paragraph text.
4. Typed Ⅿ: fine in UTF-8 pages. All four lines show the same roman numeral.
Pitfalls & Tips
Common mistakes when working with Roman Numeral One Thousand entities.
Named?
No named entity
HTML5 does not define &romanM; or similar. Use numeric forms.
CSS vs HTML
Do not mix escapes
\216F belongs in CSS. Ⅿ / Ⅿ belong in HTML.
Ⅿ vs M vs ⅿ
Different characters
Ⅿ is U+216F; letter M is U+004D; lowercase ⅿ is U+217F; CD-form ↀ is U+2180.
Fonts
Check the glyph
Number Forms support varies by font. If Ⅿ is missing, fall back to the letter M or another font.
Semicolon
End references
Always finish with ; — write Ⅿ, not Ⅿ.
Lists
CSS list-style
For auto-numbered roman lists, prefer list-style-type: upper-roman instead of hard-coding Ⅿ.
Compatibility
Browser Support
Roman Numeral One Thousand (U+216F) and its numeric entity forms (Ⅿ, Ⅿ, CSS \\216F) are supported in all mainstream browsers. Glyph shape depends on the font.
✓ Universal support
Roman 1000 (Ⅿ)
Encode with hex, decimal, or CSS escape — or paste Ⅿ 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+216F / entitiesFull support
Bottom line: Use Ⅿ or Ⅿ for the Unicode glyph, and \\216F only inside CSS content. Prefer the letter M for ordinary text.
Remember
Key Takeaways
Unicode: Roman Numeral One Thousand is U+216F (decimal 8559).
HTML: use Ⅿ or Ⅿ when you need an entity.
CSS: use \216F inside content for generated text.
Default: use Ⅿ for roman outlines; type M for ordinary letters.
One line:U+216F → Ⅿ / Ⅿ / CSS \216F, or paste Ⅿ.
Frequently Asked Questions
Use Ⅿ (hex), Ⅿ (decimal), or the CSS escape \216F in the content property. All render Ⅿ. You can also paste Ⅿ directly when your file is UTF-8.
U+216F (hex 216F, decimal 8559). It belongs to the Number Forms Unicode block.
No. HTML5 does not define a named entity for Ⅿ. Use numeric references like Ⅿ or Ⅿ.
Use it for chapter labels, outlines, and typography that needs a true uppercase roman numeral glyph. For ordinary text, the letter M is usually enough.
No. The Latin letter M is U+004D. Lowercase roman numeral one thousand is U+217F (ⅿ). CD-form thousand is U+2180 (ↀ). Uppercase roman numeral one thousand is U+216F (Ⅿ) — a different character.
HTML entities (Ⅿ or Ⅿ) go in markup. The CSS escape \216F is used in stylesheets (usually in the content property of ::before/::after). Both render Ⅿ.
🤔
Did you know?
Uppercase roman numeral one thousand is Unicode U+216F (decimal 8559). HTML5 has no named entity for it — use Ⅿ or Ⅿ. It is a different character from the letter M (U+004D), lowercase roman ⅿ (U+217F), and CD-form ↀ (U+2180).
