HTML Entity for Lowercase U Tilde (ũ)

Q: How do I display the lowercase u with tilde (ũ) in HTML?

Use &utilde; (named), ũ (hex), ũ (decimal), or \0169 in CSS content. The named entity &utilde; is the most readable option for HTML content.

Q: What is the Unicode value for the lowercase u tilde?

U+0169 (LATIN SMALL LETTER U WITH TILDE) in the Latin Extended-A block. Hex 0169, decimal 361. Used in Vietnamese and some African orthographies. Uppercase form is U+0168 (Ũ) with named entity &Utilde;.

Q: When should I use the lowercase u tilde in HTML?

When writing Vietnamese text (e.g. ngũ, vũ, trũ), African language orthographies, linguistic transcription, or any internationalized content requiring u with tilde.

Q: Is u tilde (ũ) the same as u umlaut (ü)?

No. ũ (U+0169) is u with tilde, used in Vietnamese and other languages. ü (U+00FC) is u with diaeresis/umlaut (ü), used in German and other languages. They are different letters.

Q: Is there a named HTML entity for the lowercase u tilde?

Yes. The named HTML entity is &utilde;. It is part of the standard HTML5 entity set and is well supported in modern browsers.

Beginner

⏱️ 5 min read

📚 Updated: Jun 2026

🎯 1 Code Example

Unicode U+0169

HTML Entity for Lowercase U Tilde tutorial illustration

What You'll Learn

How to display the lowercase u with tilde (ũ) in HTML using named entity, hexadecimal, decimal, and CSS escape methods. This character is U+0169 (LATIN SMALL LETTER U WITH TILDE) in the Latin Extended-A block—the letter u with a tilde (˜) above. It is used in Vietnamese (e.g. ngũ, vũ, trũ) and in some African language orthographies.

Render it with &utilde;, ũ, ũ, or CSS escape \0169. Do not confuse ũ (u tilde) with ü (u umlaut, ü)—they are different letters.

⚡ Quick Reference — Lowercase U Tilde Entity

Unicode U+0169

Latin Extended-A

Hex Code ũ

Hexadecimal reference

HTML Code ũ

Decimal reference

Named Entity &utilde;

Most readable option

Reference Table

Name           Value
────────────   ──────────
Unicode        U+0169
Hex code       &#x0169;
HTML code      &#361;
Named entity   &utilde;
CSS code       \0169
Meaning        Latin small letter u with tilde
Related        U+0168 = Ũ (&Utilde;)
Block          Latin Extended-A (U+0100–U+017F)

Complete HTML Example

A simple example showing the lowercase u tilde (ũ) using hexadecimal code, decimal HTML code, the named entity, and a CSS content escape:

html

<!DOCTYPE html>
<html>
<head>
 <style>
  #point:after{
   content: "\0169";
  }
 </style>
</head>
<body>
<p>Symbol (hex): &#x0169;</p>
<p>Symbol (decimal): &#361;</p>
<p>Symbol (named): &utilde;</p>
<p id="point">Symbol (CSS): </p>
</body>
</html>

Try It Yourself

🌐 Browser Support

The lowercase u tilde (ũ) and the named entity &utilde; are supported in modern browsers:

Chrome1+

Firefox1+

Safari1+

Edge12+

Opera4+

Android4.4+

iOS Safari1+

👀 Live Preview

See the lowercase u tilde (ũ) in Vietnamese and content contexts:

Large glyphũ

Vietnamesengũ, vũ, trũ

Named entity&utilde; renders as ũ

UppercaseŨ (U+0168) — &Utilde;

Not the same asü (u umlaut, ü) | plain u (U+0075) | ů (u ring)

Numeric refsũ ũ &utilde; \0169

🧠 How It Works

Hexadecimal Code

ũ uses the Unicode hexadecimal value 0169 to display the character. The x prefix indicates hexadecimal format.

HTML markup

Decimal HTML Code

ũ uses the decimal Unicode value 361 to display the same character. A common method for Latin Extended-A characters.

HTML markup

Named Entity

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

HTML markup

CSS Entity

\0169 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: ũ. Unicode U+0169 sits in Latin Extended-A. Uppercase equivalent: U+0168 (Ũ). Do not confuse with ü (u umlaut) or plain u (U+0075).

✅

Use Cases

The lowercase u tilde (ũ) is commonly used in:

🇻🇳 Vietnamese

Essential in words like ngũ (five/sleep), vũ (dance), trũ (pillar). One of the tone-marked u vowels in quốc ngữ.

🌍 African Orthographies

Some African language writing systems use u tilde as a distinct letter in romanization.

📝 Proper names

Vietnamese and African place names, surnames, and brands that include ũ must display correctly.

🔤 Education

Language learning apps, dictionaries, and pronunciation guides teaching Vietnamese tones.

📄 Publishing

Legal, academic, and editorial content in Vietnamese requiring correct tone marks.

🌐 Internationalization

Vietnamese-language websites, forms, and CMS content requiring correct orthography.

⚙ Programmatic HTML

When building HTML from i18n data, using &utilde; or ũ guarantees correct output.

💡 Best Practices

Do

Use &utilde; in HTML when possible for readability
Serve pages as UTF-8; you can also type ũ directly in UTF-8 source
Set lang="vi" on Vietnamese content for correct pronunciation
Use fonts that support Latin Extended-A and Vietnamese tone marks
Distinguish ũ (tilde) from ü (umlaut) and plain u

Don’t

Use ü (ü) when ũ (u tilde) is required—they are different letters
Substitute plain u when ũ is required for correct Vietnamese spelling
Use the old incorrect CSS escape \00169—the correct value is \0169
Put CSS escape \0169 in HTML text nodes
Omit UTF-8 encoding on pages with accented characters

Key Takeaways

Four references render ũ; named entity is most readable

ũ ũ &utilde;

For CSS stylesheets, use the escape in the content property

\0169

Unicode U+0169 — LATIN SMALL LETTER U WITH TILDE

Essential for Vietnamese; not the same as ü (u umlaut)

Previous: Lowercase U Ring Above (ů) Next: Lowercase U Umlaut (ü)

❓ Frequently Asked Questions

How do I display the lowercase u with tilde (ũ) in HTML?

Use &utilde; (named), ũ (hex), ũ (decimal), or \0169 in CSS content. The named entity &utilde; is the most readable for HTML content.

What is the Unicode value for the lowercase u tilde?

U+0169 (LATIN SMALL LETTER U WITH TILDE). Latin Extended-A block. Hex 0169, decimal 361. Used in Vietnamese and some African orthographies. Uppercase form is U+0168 (Ũ) with named entity &Utilde;.

When should I use the lowercase u tilde in HTML?

When writing Vietnamese (e.g. ngũ, vũ, trũ), African language orthographies, linguistic transcription, or any internationalized content requiring u with tilde.

Is u tilde (ũ) the same as u umlaut (ü)?

No. ũ (U+0169) is u with tilde, used in Vietnamese and other languages. ü (U+00FC) is u with diaeresis/umlaut (ü), used in German and other languages. They are different letters with different Unicode values.

Is there a named HTML entity for the lowercase u tilde?

Yes. The named HTML entity is &utilde;. It is part of the standard HTML5 entity set and is well supported. You can also use ũ or ũ for numeric references.

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About the author

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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Lowercase U Ring Above (ů) Lowercase U Umlaut (ü)

HTML Entity for Lowercase U Tilde (ũ)

What You'll Learn

⚡ Quick Reference — Lowercase U Tilde Entity

Complete HTML Example

🌐 Browser Support

👀 Live Preview

🧠 How It Works

Hexadecimal Code

Decimal HTML Code

Named Entity

CSS Entity

Same visual result

Use Cases

💡 Best Practices

Do

Don’t

Key Takeaways

❓ Frequently Asked Questions

🧩 Related HTML Topics

Explore More HTML Entities!

About the author