ä
Latin small letter a with diaeresis
ExtendedASCII 228 | Hex 0xE4 | U+00E4
ASCII Code
Decimal
228
Hexadecimal
0xE4
Octal
344
Binary
1110 0100
How to Type
Windows Alt CodeAlt + 228
HTML Entity
ä
Unicode InputU+00E4
Character in Different Encodings
| Encoding | Code | Symbol | Name |
|---|---|---|---|
| Code page 437 | 228 | Σ | Greek capital letter Sigma |
| ISO-8859-1 | 228 | ä | Latin small letter a with diaeresis |
| ISO-8859-2 | 228 | ä | Latin small letter a with diaeresis |
| ISO-8859-3 | 228 | ä | Latin small letter a with diaeresis |
| ISO-8859-4 | 228 | ä | Latin small letter a with diaeresis |
| ISO-8859-5 | 228 | ф | Cyrillic small letter ef |
| ISO-8859-6 | 228 | ل | Arabic letter Lam |
| ISO-8859-7 | 228 | δ | Greek Small Letter Delta |
| ISO-8859-8 | 228 | ה | Hebrew letter He |
| ISO-8859-9 | 228 | ä | Latin small letter a with diaeresis |
| ISO-8859-10 | 228 | ä | Latin small letter a with diaeresis |
| ISO-8859-11 | 228 | ไ | Thai character Sara Ai Maimalai |
| Windows-1250 | 228 | ä | Latin small letter a with diaeresis |
| Windows-1251 | 228 | д | Cyrillic small letter de |
| Windows-1252 | 228 | ä | Latin small letter a with diaeresis |
| Windows-1253 | 228 | δ | Greek Small Letter Delta |
| Windows-1254 | 228 | ä | Latin small letter a with diaeresis |
| Windows-1255 | 228 | ה | Hebrew letter He |
| Windows-1256 | 228 | ن | Arabic letter Noon |
| Windows-1257 | 228 | ä | Latin small letter a with diaeresis |
| Windows-1258 | 228 | ä | Latin small letter a with diaeresis |
Frequently Asked Questions
What is ASCII code 228?
ASCII code 228 represents the Latin small letter a with diaeresis character. In hexadecimal it is 0xE4, in binary 1110 0100, and in octal 344. This is an extended ASCII character whose meaning varies by encoding.
How do I type ASCII 228 on a keyboard?
On Windows, hold Alt and type 228 on the numeric keypad. On Mac, you can use the Character Viewer (Edit > Emoji & Symbols). In HTML, use the entity ä or ä.