X
Uppercase X
PrintableASCII 88 | Hex 0x58 | U+0058
ASCII Code
Decimal
88
Hexadecimal
0x58
Octal
130
Binary
0101 1000
URL Escape
%58
How to Type
Windows Alt CodeAlt + 88
HTML Entity
X
Unicode InputU+0058
Frequently Asked Questions
What is ASCII code 88?
ASCII code 88 represents the Uppercase X character. In hexadecimal it is 0x58, in binary 0101 1000, and in octal 130. It is a printable character that appears as "X" in text.
How do I type ASCII 88 on a keyboard?
On Windows, hold Alt and type 88 on the numeric keypad. On Mac, you can use the Character Viewer (Edit > Emoji & Symbols). In HTML, use the entity X or X.