U+00C4

A with diaeresisÄ

A with diaeresis is a monochrome text character from the Unicode Latin-1 Supplement block, listed here under Latin Letters & Accents. Copy it with one click, or use the hex, octal, decimal and HTML entity codes below to embed it in web pages, code, and documents. It is often searched for as "letter", "german", "umlaut".

Quick facts

Unicode
U+00C4
Decimal
196
Hex
0x00C4
Octal
0o304

Unicode identity

FormatValueCopy
Code pointOfficial Unicode notationU+00C4
Official nameUnicodeData.txt, Unicode 18.0.0LATIN CAPITAL LETTER A WITH DIAERESIS
Unicode 1.0 nameLegacy aliasLATIN CAPITAL LETTER A DIAERESIS
DecimalBase 10196
HexadecimalBase 160x00C4
OctalBase 80o304
BinaryBase 20000000011000100
General categoryLetter, uppercaseLu
Unicode blockU+0080–U+00FFLatin-1 Supplement
PlaneBasic Multilingual Plane (BMP, Plane 0)

HTML & CSS

FormatValueCopy
HTML entity (decimal)Ä
HTML entity (hex)Ä
HTML entity (named)Ä
CSS content escapeUse inside content: "…"\00C4
URL encodedPercent-encoded UTF-8%C3%84

Programming languages

FormatValueCopy
JavaScript / TypeScript\u00C4
JSONUTF-16 surrogate pairs\u00C4
Python\u00C4
Java / C# / Kotlin\u00C4

Byte encodings

FormatValueCopy
UTF-82 bytesC3 84
UTF-16 (BE)00C4
UTF-32 (BE)000000C4

How to type A with diaeresis

  • Windows

    Hold Alt and type +C4 with the hex numeric keypad option enabled, or type C4 then press Alt+X in Word and most Office apps.

  • macOS

    Enable the Unicode Hex Input keyboard, hold Option, and type 00C4. Or open Character Viewer (Control+Command+Space) and search "A with diaeresis".

  • Linux

    Press Ctrl+Shift+U, type c4, then press Space or Enter in GTK apps. IBus and most terminals support the same sequence.

  • HTML, CSS & code

    Paste the character directly, or use the escapes above: Ä in HTML, \00C4 in CSS, and \u00C4 in JavaScript.

Official Unicode reference

Character name
LATIN CAPITAL LETTER A WITH DIAERESIS
Unicode 1.0 name
LATIN CAPITAL LETTER A DIAERESIS
Block
Latin-1 Supplement (U+0080–U+00FF)
General category
Lu — Letter, uppercase

Data from the Unicode Character Database, version 18.0.0. See the official code chart for the Latin-1 Supplement block: U0080.pdf (PDF, unicode.org).

Frequently asked questions

How do I copy the A with diaeresis symbol?

Click the Copy button at the top of this page, or select Ä and press Ctrl+C (Cmd+C on Mac). It is plain Unicode text, so it pastes into documents, chats, code, and design tools.

What is the Unicode code point for A with diaeresis?

A with diaeresis is U+00C4 (decimal 196, hexadecimal 0x00C4, octal 0o304). It lives in the Latin-1 Supplement block (U+0080–U+00FF) of the Basic Multilingual Plane (BMP, Plane 0).

What is the official Unicode name of A with diaeresis?

The Unicode Standard (version 18.0.0) names this character "LATIN CAPITAL LETTER A WITH DIAERESIS"; its Unicode 1.0 name was "LATIN CAPITAL LETTER A DIAERESIS". Its General_Category is Lu (Letter, uppercase).

What is the HTML code for A with diaeresis?

Use Ä or Ä, or the named entity Ä. In CSS, use content: "\00C4".

How do I type A with diaeresis in code?

JavaScript: "\u00C4". Python: "\u00C4". JSON and Java: "\u00C4". The UTF-8 byte sequence is C3 84.

Is A with diaeresis an emoji?

No. A with diaeresis is a text symbol and renders as a monochrome glyph in the current font. Some platforms may offer an emoji variant when U+FE0F is appended.

Related symbols in Latin Letters & Accents

View all latin letters & accents