UnicodeCharactercom
ä
U+00E4 · LATIN SMALL LETTER A WITH DIAERESIS

Latin Small Letter A with Diaeresis

  • CodepointU+00E4
  • NameLATIN SMALL LETTER A WITH DIAERESIS
  • Decimal228
  • BlockLatin-1 Supplement (U+0080–U+00FF)
  • Plane0 — Basic Multilingual Plane
  • ScriptLatin
  • CategoryLl — Lowercase Letter
  • Unicode version1.1 (1993)
  • Bidi classL — Left-to-Right
  • Combining class0
  • East Asian widthN — Neutral
  • MirroredNo

About this character

U+00E4 (ä) is LATIN SMALL LETTER A WITH DIAERESIS, a lowercase letter in the Latin-1 Supplement block. It belongs to the Latin script. It was added in Unicode 1.1 (1993).

Its uppercase form is U+00C4 Ä.

It is precomposed. Under NFD it decomposes into U+0061 a + U+0308 ◌̈, and NFC recombines that sequence into this single codepoint, so both spellings are canonically equivalent and should compare equal after normalization. See the normalization guide.

How to type ä

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Encodings & escapes

UTF-8 encoder →
UTF-8C3 A42 bytes
UTF-1600E41 code unit
UTF-32000000E44 bytes
HTML namedänamed character reference
HTML decimalä
HTML hexä
CSS\E4in content: "…"
JavaScript\u00E4
JSON\u00E4
Python\u00E4
Python\N{LATIN SMALL LETTER A WITH DIAERESIS}by name
Java / C#\u00E4
C / C++\u00E4universal character name
Rust / Swift / PHP\u{E4}
Go\u00E4
Ruby\u00E4
Excel / Sheets=UNICHAR(228)
URL-encoded%C3%A4percent-encoded UTF-8
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Normalization forms

Normalizer →
NFCunchanged
NFDU+0061 a + U+0308 ◌̈
NFKCunchanged
NFKDU+0061 a + U+0308 ◌̈
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Characters built on ä

U+01DFǟLatin Small Letter A with Diaeresis and Macron
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Nearby in Latin-1 Supplement

All in block →
U+00DEÞLatin Capital Letter Thorn U+00DFßLatin Small Letter Sharp S U+00E0àLatin Small Letter A with Grave U+00E1áLatin Small Letter A with Acute U+00E2âLatin Small Letter A with Circumflex U+00E3ãLatin Small Letter A with Tilde U+00E5åLatin Small Letter A with Ring Above U+00E6æLatin Small Letter Ae U+00E7çLatin Small Letter C with Cedilla U+00E8èLatin Small Letter E with Grave U+00E9éLatin Small Letter E with Acute U+00EAêLatin Small Letter E with Circumflex