HTML Entity for Uppercase F Script Capital (ℱ)

Beginner
⏱️ 5 min read
📚 Updated: Jun 2026
🎯 1 Code Example
Unicode U+2131
HTML Entity for Uppercase F Script Capital tutorial illustration

What You'll Learn

How to display the script capital F (ℱ) in HTML using named entity, hexadecimal, decimal, and CSS escape methods. This character is part of the Letterlike Symbols block and is used in mathematical notation, calligraphy, and formal typography. Its official Unicode name is SCRIPT CAPITAL F (U+2131).

Render it with ℱ, ℱ, ℱ, or CSS escape \2131. The named entity ℱ is often the most readable option in HTML source.

⚡ Quick Reference — Uppercase F Script Capital Entity

Unicode U+2131

Letterlike Symbols

Hex Code ℱ

Hexadecimal reference

HTML Code ℱ

Decimal reference

Named Entity ℱ

Most readable option

Reference Table
Name           Value
────────────   ──────────
Unicode        U+2131
Hex code       ℱ
HTML code      ℱ
Named entity   ℱ
CSS code       \2131
Meaning        Script capital F
Related        U+2130 = ℰ (script E); U+212C = ℬ (script B)
Block          Letterlike Symbols (U+2100–U+214F)
1

Complete HTML Example

A simple example showing the script capital F (ℱ) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html
<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\2131";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x2131;</p>
<p>Symbol (decimal): &#8497;</p>
<p>Symbol (named): &Fscr;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>
Try it Yourself

🌐 Browser Support

The script capital F (ℱ) and the named entity &Fscr; are supported in modern browsers when UTF-8 is used:

Chrome1+
Firefox1+
Safari1+
Edge12+
Opera4+
Android4.4+
iOS Safari1+

👀 Live Preview

See the script capital F (ℱ) in mathematical and typographic contexts:

Large glyphℱ
Function notationℱ(x) = function of x
Script lettersℬ ℰ ℱ
Named entity&Fscr; renders as ℱ
Numeric refs&#x2131; &#8497; &Fscr; \2131

🧠 How It Works

1

Hexadecimal Code

&#x2131; uses the Unicode hexadecimal value 2131 to display the script capital F. The x prefix indicates hexadecimal format.

HTML markup
2

Decimal HTML Code

&#8497; uses the decimal Unicode value 8497 to display the same character. A common method for Letterlike Symbols.

HTML markup
3

Named Entity

&Fscr; is the standard named entity for ℱ—readable in source HTML and part of the HTML5 entity set.

HTML markup
4

CSS Entity

\2131 is used in CSS stylesheets, particularly in the content property of pseudo-elements like ::before and ::after.

CSS stylesheet
=

Same visual result

All four methods produce the glyph: ℱ. Unicode U+2131 sits in Letterlike Symbols. Do not confuse with plain F (U+0046), Ƒ (f hook), or ƒ (florin).

✅

Use Cases

The script capital F (ℱ) is commonly used in:

📐 Mathematical notation

Script-style capital F in equations, function notation, and formal mathematical writing.

🎨 Typography

Elegant script lettering in calligraphy, invitations, and formal design projects.

📄 Formal text

Certificates, formal documents, and sophisticated content requiring script capital letters.

📚 Academic papers

Scholarly documents and research papers using script letter notation.

🌟 Elegant branding

Luxury product descriptions, logos, and high-end design requiring script F styling.

🌐 Web publishing

Scientific blogs and online textbooks that need proper script F rendering.

🔍 Search & SEO

Correct rendering so typographic and mathematical content can be found and indexed.

💡 Best Practices

Do

  • Use &Fscr; in HTML when possible for readability
  • Serve pages as UTF-8; you can also type ℱ directly in UTF-8 source
  • Use math-friendly fonts (e.g. Cambria Math, STIX) for reliable script glyph display
  • Distinguish ℱ (script F) from plain F (U+0046)
  • Pick one entity style (named, hex, or decimal) per project for consistency

Don’t

  • Substitute plain F when ℱ is required in math or script notation
  • Put CSS escape \2131 in HTML text nodes
  • Use padded Unicode notation like U+02131—the correct value is U+2131
  • Use \02131 in CSS—the correct escape is \2131
  • Assume all fonts render Letterlike Symbols identically

Key Takeaways

1

Four references render ℱ; named entity is most readable

&#x2131; &#8497; &Fscr;
2

For CSS stylesheets, use the escape in the content property

\2131
3

Unicode U+2131 — SCRIPT CAPITAL F

4

Used in math notation, calligraphy, formal typography, and elegant design

5

Previous: Uppercase F Hook (Ƒ)   Next: Uppercase F Turned (Ⅎ)

❓ Frequently Asked Questions

Use &Fscr; (named), &#x2131; (hex), &#8497; (decimal), or \2131 in CSS content. The named entity &Fscr; is the most readable for HTML content.
U+2131 (SCRIPT CAPITAL F). Letterlike Symbols block. Hex 2131, decimal 8497. Used in mathematical notation, calligraphy, and formal typography.
In mathematical notation, calligraphy-style typography, formal design, elegant branding, and academic content requiring script-style capital F.
HTML code (&#8497; or &#x2131;) or the named entity &Fscr; is used in HTML content. The CSS entity (\2131) is used in CSS, e.g. in the content property of pseudo-elements. Both produce ℱ but in different contexts.
Yes. The named HTML entity is &Fscr;. It is part of the standard HTML5 entity set and is well supported. You can also use &#8497; or &#x2131; for numeric references.

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About the author

Mari Selvan M P
Mari Selvan M P 🔗

Developer, cloud engineer, and technical writer

  • Experience 12 years building web and cloud systems
  • Focus Full Stack Development, AWS, and Developer Education

I write practical tutorials so students and working developers can learn by doing—from databases and APIs to deployment on AWS.

AWS Certified Developer – Associate (Credly)

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