LATIN SMALL LETTER A WITH DIAERESIS·U+00E4

ä

Character Information

Code Point
U+00E4
HEX
00E4
Unicode Plane
Basic Multilingual Plane
Category
Lowercase Letter

Character Representations

Click elements to copy
EncodingHexBinary
UTF8
C3 A4
11000011 10100100
UTF16 (big Endian)
00 E4
00000000 11100100
UTF16 (little Endian)
E4 00
11100100 00000000
UTF32 (big Endian)
00 00 00 E4
00000000 00000000 00000000 11100100
UTF32 (little Endian)
E4 00 00 00
11100100 00000000 00000000 00000000
HTML Entity
ä
URI Encoded
%C3%A4

Description

The character U+00E4, also known as Latin Small Letter A with Diaeresis, plays a significant role in digital texts, particularly for the German language. In typography, it signifies the "ä" sound, which distinguishes between long and short forms of certain words. Notably, the diaeresis symbol (¨) over the "a" indicates that the "ä" has a unique pronunciation different from the regular "a." This is essential for accurate representation in written communication within German-speaking cultures. U+00E4 is part of the Latin-1 Supplement Unicode block, which includes characters ranging from 128 to 255 that serve various text formatting and typography purposes. Its use reflects linguistic nuances and cultural contexts, ensuring accurate representation of texts for speakers of the German language.

How to type the ä symbol on Windows

Hold Alt and type 0228 on the numpad. Or use Character Map.

  1. Step 1: Determine the UTF-8 encoding bit layout

    The character ä has the Unicode code point U+00E4. In UTF-8, it is encoded using 2 bytes because its codepoint is in the range of 0x0080 to 0x07ff.

    Therefore we know that the UTF-8 encoding will be done over 11 bits within the final 16 bits and that it will have the format: 110xxxxx 10xxxxxx
    Where the x are the payload bits.

    UTF-8 Encoding bit layout by codepoint range
    Codepoint RangeBytesBit patternPayload length
    U+0000 - U+007F10xxxxxxx7 bits
    U+0080 - U+07FF2110xxxxx 10xxxxxx11 bits
    U+0800 - U+FFFF31110xxxx 10xxxxxx 10xxxxxx16 bits
    U+10000 - U+10FFFF411110xxx 10xxxxxx 10xxxxxx 10xxxxxx21 bits
  2. Step 2: Obtain the payload bits:

    Convert the hexadecimal code point U+00E4 to binary: 11100100. Those are the payload bits.

  3. Step 3: Fill in the bits to match the bit pattern:

    Obtain the final bytes by arranging the paylod bits to match the bit layout:
    11000011 10100100