¡
Inverted exclamation mark
ExtendedASCII 161 | Hex 0xA1 | U+00A1
ASCII Code
Decimal
161
Hexadecimal
0xA1
Octal
241
Binary
1010 0001
How to Type
Windows Alt CodeAlt + 161
HTML Entity
¡
Unicode InputU+00A1
Character in Different Encodings
| Encoding | Code | Symbol | Name |
|---|---|---|---|
| Code page 437 | 161 | í | Latin small letter i with acute |
| ISO-8859-1 | 161 | ¡ | Inverted exclamation mark |
| ISO-8859-2 | 161 | Ą | Latin capital letter A with ogonek |
| ISO-8859-3 | 161 | Ħ | Latin capital letter H with stroke |
| ISO-8859-4 | 161 | Ą | Latin capital letter A with ogonek |
| ISO-8859-5 | 161 | Ё | Cyrillic capital letter Io |
| ISO-8859-6 | 161 | - | Unused |
| ISO-8859-7 | 161 | ‘ | Left single quotation mark |
| ISO-8859-8 | 161 | - | Unused |
| ISO-8859-9 | 161 | ¡ | Inverted exclamation mark |
| ISO-8859-10 | 161 | Ą | Latin capital letter A with ogonek |
| ISO-8859-11 | 161 | ก | Thai character Ko Kai |
| Windows-1250 | 161 | ˇ | Caron |
| Windows-1251 | 161 | Ў | Cyrillic capital letter short U |
| Windows-1252 | 161 | ¡ | Inverted exclamation mark |
| Windows-1253 | 161 | ΅ | Greek dialytika tonos |
| Windows-1254 | 161 | ¡ | Inverted exclamation mark |
| Windows-1255 | 161 | ¡ | Inverted exclamation mark |
| Windows-1256 | 161 | ، | Arabic comma |
| Windows-1257 | 161 | - | Unused |
| Windows-1258 | 161 | ¡ | Inverted exclamation mark |
Frequently Asked Questions
What is ASCII code 161?
ASCII code 161 represents the Inverted exclamation mark character. In hexadecimal it is 0xA1, in binary 1010 0001, and in octal 241. This is an extended ASCII character whose meaning varies by encoding.
How do I type ASCII 161 on a keyboard?
On Windows, hold Alt and type 161 on the numeric keypad. On Mac, you can use the Character Viewer (Edit > Emoji & Symbols). In HTML, use the entity ¡ or ¡.