ASCII Converter
Convert between ASCII text, binary, hexadecimal, and decimal with real-time character encoding and per-character breakdown table.
What Is ASCII Encoding?
ASCII (American Standard Code for Information Interchange) maps 128 characters to decimal values 0 through 127. Each character has equivalent binary, hexadecimal, and decimal representations used in programming and data transmission.
Common Conversions
- Letter "A" = decimal 65 = hex 41 = binary 01000001
- Space = decimal 32 = hex 20 = binary 00100000
- Digit "0" = decimal 48 = hex 30 = binary 00110000
Related tools: Text to ASCII, ASCII to Text, Convert ASCII to Binary, and Convert ASCII to Hexadecimal.
Frequently Asked Questions
How do I convert hex to ASCII?
Split the hex string into pairs (e.g., 48 65 6C 6C 6F), convert each pair to decimal, then map each decimal to its ASCII character. Result: "Hello".
How many ASCII characters exist?
Standard ASCII has 128 characters: 33 control codes (0-31 and 127) and 95 printable characters (32-126).
What is the ASCII value of lowercase "a"?
Lowercase "a" is decimal 97, hexadecimal 61, and binary 01100001.
Can this tool handle extended ASCII?
This converter handles standard ASCII (0-127). Values above 127 are rejected to keep output compatible with 7-bit ASCII.
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