Uppercase U umlaut (Ü) is the Unicode character at U+00DC in Latin-1 Supplement. Official name: LATIN CAPITAL LETTER U WITH DIAERESIS — a capital U with two dots above (umlaut/diaeresis), common in German, Turkish, and Hungarian.
Remember
Character Ü
Unicode U+00DC
Named entity Ü (capital U)
Hex entity Ü
Decimal Ü
CSS escape \00DC
Not the same ü · Ũ · UE
Prefer Ü in HTML markup — the capital U in the name matters. Numeric forms and typing Ü in UTF-8 also work. For the lowercase letter, use ü (ü).
Using Named Entity: Ü
Using Hex Code: Ü
Using HTML Code: Ü
Using CSS Entity: Ü
Typed directly: Ü
Word: ÜBER
How It Works
1. Named:Ü (capital U) is the clearest HTML form for U+00DC. Lowercase ü is a different character (ü).
2. Hex:U+00DC → Ü in HTML. Same glyph as the named entity.
3. Decimal: same code point as 220 → Ü. Same glyph as hex and named.
4. CSS: use \00DC in content (not an HTML entity). #point::after appends that Ü after the paragraph text.
5. Typed / word: paste Ü in UTF-8, or build German words like ÜBER with lang="de".
Pitfalls & Tips
Common mistakes when working with U+00DC.
Case
Ü ≠ ü
Ü → Ü (capital). ü → ü (lowercase). Entity names are case-sensitive.
vs Ũ
Not a tilde
Ũ (Ũ) has a tilde above. Ü has two dots (diaeresis) — different marks.
vs UE
Not the digraph UE
Typing UE is sometimes used as an ASCII fallback in German, but it is two letters — not the single character Ü.
Encoding
Keep UTF-8 declared
Latin-1 letters display reliably with <meta charset="UTF-8">. Prefer named entities when the source file encoding is uncertain.
CSS vs HTML
Do not mix escapes
\00DC belongs in CSS strings. Ü / Ü / Ü belong in HTML.
A11y
Use real language context
When Ü appears in German (or other) words, keep surrounding text and lang accurate (for example de) so screen readers get useful context.
Compatibility
Browser Support
Uppercase U umlaut (U+00DC) and its entity forms (Ü, Ü, Ü, CSS \\00DC) are supported in all mainstream browsers. Latin-1 glyphs are universally available in system fonts.
✓ Universal support
Uppercase U Umlaut (Ü)
Encode with named, hex, decimal, CSS escape, or type the character — same code point everywhere encoding is supported.
100%Browser coverage
Google ChromeSupported
Yes
Microsoft EdgeSupported
Yes
Mozilla FirefoxSupported
Yes
Apple SafariSupported
Yes
OperaSupported
Yes
Internet ExplorerIE 9+
Yes
U+00DC / ÜFull support
Bottom line: Prefer Ü (capital U) in HTML. Use \\00DC only inside CSS content. Do not confuse with ü (ü), tilde Ũ, or the digraph UE.
Remember
Key Takeaways
Unicode: uppercase U umlaut is U+00DC (decimal 220) — glyph Ü.
HTML: prefer Ü (capital U) — also Ü / Ü.
CSS: use \00DC inside content for generated text.
Meaning:Ü is capital diaeresis — not ü (ü), not Ũ (tilde), not UE.
Use Ü (named), Ü (hex), Ü (decimal), type Ü directly in UTF-8, or the CSS escape \00DC in content. Prefer Ü in normal HTML.
U+00DC (LATIN CAPITAL LETTER U WITH DIAERESIS). Hex DC, decimal 220. It belongs to Latin-1 Supplement (U+0080–U+00FF).
Yes. Use Ü (capital U). Numeric forms Ü and Ü also work. Note: ü (lowercase) is a different letter (ü).
No. Ü is U+00DC (Ü, capital diaeresis). ü is U+00FC (ü). Ũ is U+0168 (Ũ, tilde).
Use it for German, Turkish, Hungarian, and other orthographies that need capital Ü — not as a substitute for Ũ, the digraph UE, or plain U.
HTML entities (Ü, Ü, or Ü) go in markup. The CSS escape \00DC goes in stylesheet strings (usually content on ::before/::after).
🤔
Did you know?
Uppercase U umlaut is Unicode U+00DC (decimal 220) — glyph Ü in Latin-1 Supplement (U+0080–U+00FF). HTML5 names it Ü (capital U). Official name: LATIN CAPITAL LETTER U WITH DIAERESIS. Lowercase is ü (ü, U+00FC). Common in German, Turkish, and Hungarian. Do not confuse with tilde Ũ (Ũ) or the ASCII digraph UE.
