HTML Entity for Uppercase U Double Acute (Ű)

Beginner

5 min read

Updated: Sep 2026

1 example

Unicode U+0170

HTML Entity for uppercase U double acute (U+0170) tutorial illustration

Definition

What Is Uppercase U Double Acute?

Uppercase U double acute (Ű) is the Unicode character at U+0170 in Latin Extended-A. Official name: LATIN CAPITAL LETTER U WITH DOUBLE ACUTE — a capital U with two acute accents, a distinct letter in the Hungarian alphabet.

Remember

Character     Ű
Unicode       U+0170
Named entity  &Udblac;  (capital U)
Hex entity    &#x170;
Decimal       &#368;
CSS escape    \0170
Not the same  ű · Ü · Ú

Prefer &Udblac; in HTML markup — the capital U in the name matters. Numeric forms and typing Ű in UTF-8 also work. For the lowercase letter, use &udblac; (ű).

Reference

Quick Reference

One table for every form you will actually use.

Form	Code	Where it goes
Named entity	`&Udblac;`	HTML markup (preferred)
Direct character	`Ű`	HTML text (UTF-8)
Hex entity	`Ű`	HTML markup
Decimal entity	`Ű`	HTML markup
CSS escape	`\0170`	Stylesheet `content`
Lowercase (related)	ű (U+0171)	Named `&udblac;`

When to Use Which

Situation	Use
Capital U with double acute (Ű)	`&Udblac;` or type `Ű`
Lowercase u with double acute (ű)	ű (`&udblac;`)
Capital U with diaeresis (Ü)	Ü (`Ü`)
Capital U with acute (Ú)	Ú (`Ú`)
Capital O with double acute (Ő)	Ő (`&Odblac;`)
Generated text via `::before` / `::after`	`content: "\0170"`

See it

Live Preview

Uppercase U double acute rendered alone and next to related letters.

Large glyph Ű

Notation TŰZ

Compared Ű | ű | Ü | Ú

Hint Compare: Double acute Ű | Lower ű | Diaeresis Ü | Acute Ú

With entities Named: Ű | Hex: Ű | Decimal: Ű

Code

Complete HTML Example

One page that shows the letter with named, hex, decimal, CSS escape, and a typed character. Use View Output or open the live editor.

Named + Hex + Decimal + CSS + Typed

Five ways to produce Ű, plus a short Hungarian word.

html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Uppercase U Double Acute (Ű)</title>
  <style>
    #point::after {
      content: "\0170";
    }
  </style>
</head>
<body>
  <p>Using Named Entity: &Udblac;</p>
  <p>Using Hex Code: &#x170;</p>
  <p>Using HTML Code: &#368;</p>
  <p id="point">Using CSS Entity: </p>
  <p>Typed directly: Ű</p>
  <p lang="hu">Magyar: T&Udblac;Z</p>
</body>
</html>

Try It Yourself

How It Works

1. Named: &Udblac; (capital U) is the clearest HTML form for U+0170. Lowercase &udblac; is a different character (ű).

2. Hex: U+0170 → Ű in HTML. Same glyph as the named entity.

3. Decimal: same code point as 368 → Ű. Same glyph as hex and named.

4. CSS: use \0170 in content (not an HTML entity). #point::after appends that Ű after the paragraph text.

5. Typed / word: paste Ű in UTF-8, or write T&Udblac;Z with lang="hu".

Pitfalls & Tips

Common mistakes when working with U+0170.

Case

&Udblac; ≠ &udblac;

&Udblac; → Ű (capital). &udblac; → ű (lowercase). Entity names are case-sensitive.

vs Ü

Not a diaeresis

Ü (Ü) is Ü with two dots. Double acute marks are pointed, not round dots.

vs Ú

Not a single acute

Ú (Ú) is Ú with one accent. Double acute needs two.

vs Ő

Not O-double-acute

Hungarian Ő is &Odblac; (U+0150). Same diacritic idea, different base letter.

Encoding

Keep UTF-8 declared

Latin Extended-A letters display reliably with <meta charset="UTF-8">. Prefer named entities when encoding is uncertain.

CSS vs HTML

Do not mix escapes

\0170 belongs in CSS strings. &Udblac; / Ű / Ű belong in HTML.

A11y

Use real language context

When Ű appears in Hungarian words, keep surrounding text and lang accurate (for example lang="hu").

Compatibility

Browser Support

Uppercase U double acute (U+0170) and its entity forms (&Udblac;, Ű, Ű, CSS \\0170) are supported in all mainstream browsers. Latin Extended-A glyphs are widely available in system fonts.

✓ Universal support

Uppercase U Double Acute (Ű)

Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.

100% Browser coverage

Google Chrome Supported

Yes

Microsoft Edge Supported

Yes

Mozilla Firefox Supported

Yes

Apple Safari Supported

Yes

Opera Supported

Yes

Internet Explorer All versions

Yes

U+0170 / &Udblac; Full support

Bottom line: Prefer &Udblac; (capital U) in HTML. Use \\0170 only inside CSS content. Do not confuse with &udblac; (ű) or diaeresis Ü.

Remember

Key Takeaways

Unicode: uppercase U double acute is U+0170 (decimal 368) — glyph Ű.
HTML: prefer &Udblac; (capital U) — also Ű / Ű.
CSS: use \0170 inside content for generated text.
Meaning: Ű is capital double acute — not ű (&udblac;), not Ü (diaeresis), not Ú (acute).

One line: U+0170 → &Udblac; / Ű / Ű / CSS \0170.

Frequently Asked Questions

How do I display Ű in HTML?

Use &Udblac; (named), Ű (hex), Ű (decimal), type Ű directly in UTF-8, or the CSS escape \0170 in content. Prefer &Udblac; in normal HTML.

What is the Unicode value for uppercase U double acute?

U+0170 (LATIN CAPITAL LETTER U WITH DOUBLE ACUTE). Hex 170, decimal 368. It belongs to Latin Extended-A (U+0100–U+017F).

Is there a named HTML entity for U+0170?

Yes. Use &Udblac; (capital U). Numeric forms Ű and Ű also work. Note: &udblac; (lowercase) is a different letter (ű).

Is Ű the same as ű or Ü?

No. Ű is U+0170 (&Udblac;, capital double acute). ű is U+0171 (&udblac;). Ü is U with diaeresis (Ü, U+00DC).

When should I use &Udblac;?

Use it for Hungarian and other text that needs capital Ű — not as a substitute for Ü or Ú.

What is the difference between HTML code and CSS entity for U+0170?

HTML entities (&Udblac;, Ű, or Ű) go in markup. The CSS escape \0170 goes in stylesheet strings (usually content on ::before/::after).

Did you know?

Uppercase U double acute is Unicode U+0170 (decimal 368) — glyph Ű in Latin Extended-A (U+0100–U+017F). HTML5 names it &Udblac; (capital U). Official name: LATIN CAPITAL LETTER U WITH DOUBLE ACUTE. Lowercase is &udblac; (ű, U+0171). Essential in Hungarian (distinct from Ü). Do not confuse with diaeresis Ü (Ü) or single acute Ú (Ú).

Next: Uppercase U Double Grave

Learn the HTML entity for uppercase U with double grave (U+0214).

Continue tutorial →

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.

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