About ascii converter
ASCII assigns a number to each basic character: A is 65, a is 97 and the digit 0 is 48. This converter shows those codes in decimal, hex, binary or octal and converts them back to text.
Good to know
- ASCII covers 128 characters: letters, digits, punctuation and control codes.
- Letters beyond that, like Hindi or é, need Unicode.
- Upper and lower case differ by 32, which is a single bit.
A worked example
The word 'Hello' is 72 101 108 108 111 in decimal ASCII codes, or 48 65 6C 6C 6F in hex. A capital letter and its lowercase form differ by 32, so A is 65 and a is 97. A space is 32 and the digit 0 is 48.
Beyond ASCII
ASCII covers only English letters, digits and symbols. Other letters, such as é or क, need Unicode, which includes ASCII as its first 128 characters.
