Example Conversion
ASCII to Binary
A → 01000001
Hello → 01001000 01100101 01101100 01101100 01101111
Binary to ASCII
01000001 → A
01001000 01101001 → Hi
Common Text Example
ChatGPT → 01000011 01101000 01100001 01110100 01000111 01010000 01010100
Popular ASCII Text Examples
Hello → 01001000 01100101 01101100 01101100 01101111
Admin → 01000001 01100100 01101101 01101001 01101110
Password → 01010000 01100001 01110011 01110011 01110111 01101111 01110010 01100100
Binary → 01000010 01101001 01101110 01100001 01110010 01111001
Popular ASCII Binary Examples
| Character |
Binary |
| A | 01000001 |
| B | 01000010 |
| C | 01000011 |
| a | 01100001 |
| b | 01100010 |
| 1 | 00110001 |
| 2 | 00110010 |
| Space | 00100000 |
| ! | 00100001 |
What Is ASCII to Binary Conversion?
ASCII-to-binary conversion transforms standard ASCII characters into 8-bit binary code used by computers and digital systems. Each ASCII character is represented by a unique binary value.
Unlike Unicode systems, standard ASCII uses 128 character codes including letters, numbers, punctuation, and control characters. Each ASCII character maps to a unique numeric and binary representation used by computers to process readable text data.
Where ASCII Binary Conversion Is Used
ASCII and binary conversion is commonly used in programming, networking, cybersecurity, data encoding, embedded systems, and computer science education.
Developers often translate ASCII text into binary format when working with low-level communication protocols, memory storage, and machine-readable text processing.
How to Convert ASCII to Binary?
To convert ASCII text to binary manually, first find the ASCII decimal value of the character, then convert that decimal number into an 8-bit binary value.
Example:
Example: Convert ASCII to Binary
Character:
ASCII Decimal:
Binary:
ASCII Binary Reference Table
Below is a quick ASCII reference table showing common characters, decimal ASCII values, hexadecimal values, and binary code representations.
Use this ASCII binary reference table to quickly look up character encodings in decimal, hexadecimal, and binary formats.
| Character |
ASCII Decimal |
Hex |
Binary |
| Space | 32 | 20 | 00100000 |
| ! | 33 | 21 | 00100001 |
| " | 34 | 22 | 00100010 |
| # | 35 | 23 | 00100011 |
| $ | 36 | 24 | 00100100 |
| % | 37 | 25 | 00100101 |
| & | 38 | 26 | 00100110 |
| ' | 39 | 27 | 00100111 |
| ( | 40 | 28 | 00101000 |
| ) | 41 | 29 | 00101001 |
| * | 42 | 2A | 00101010 |
| + | 43 | 2B | 00101011 |
| , | 44 | 2C | 00101100 |
| - | 45 | 2D | 00101101 |
| . | 46 | 2E | 00101110 |
| / | 47 | 2F | 00101111 |
| 0 | 48 | 30 | 00110000 |
| 1 | 49 | 31 | 00110001 |
| 2 | 50 | 32 | 00110010 |
| 3 | 51 | 33 | 00110011 |
| 4 | 52 | 34 | 00110100 |
| 5 | 53 | 35 | 00110101 |
| 6 | 54 | 36 | 00110110 |
| 7 | 55 | 37 | 00110111 |
| 8 | 56 | 38 | 00111000 |
| 9 | 57 | 39 | 00111001 |
| : | 58 | 3A | 00111010 |
| ; | 59 | 3B | 00111011 |
| < | 60 | 3C | 00111100 |
| = | 61 | 3D | 00111101 |
| > | 62 | 3E | 00111110 |
| ? | 63 | 3F | 00111111 |
| @ | 64 | 40 | 01000000 |
| A | 65 | 41 | 01000001 |
| B | 66 | 42 | 01000010 |
| C | 67 | 43 | 01000011 |
| D | 68 | 44 | 01000100 |
| E | 69 | 45 | 01000101 |
| F | 70 | 46 | 01000110 |
| G | 71 | 47 | 01000111 |
| H | 72 | 48 | 01001000 |
| I | 73 | 49 | 01001001 |
| J | 74 | 4A | 01001010 |
| K | 75 | 4B | 01001011 |
| L | 76 | 4C | 01001100 |
| M | 77 | 4D | 01001101 |
| N | 78 | 4E | 01001110 |
| O | 79 | 4F | 01001111 |
| Character |
ASCII Decimal |
Hex |
Binary |
| P | 80 | 50 | 01010000 |
| Q | 81 | 51 | 01010001 |
| R | 82 | 52 | 01010010 |
| S | 83 | 53 | 01010011 |
| T | 84 | 54 | 01010100 |
| U | 85 | 55 | 01010101 |
| V | 86 | 56 | 01010110 |
| W | 87 | 57 | 01010111 |
| X | 88 | 58 | 01011000 |
| Y | 89 | 59 | 01011001 |
| Z | 90 | 5A | 01011010 |
| [ | 91 | 5B | 01011011 |
| \ | 92 | 5C | 01011100 |
| ] | 93 | 5D | 01011101 |
| ^ | 94 | 5E | 01011110 |
| _ | 95 | 5F | 01011111 |
| ` | 96 | 60 | 01100000 |
| a | 97 | 61 | 01100001 |
| b | 98 | 62 | 01100010 |
| c | 99 | 63 | 01100011 |
| d | 100 | 64 | 01100100 |
| e | 101 | 65 | 01100101 |
| f | 102 | 66 | 01100110 |
| g | 103 | 67 | 01100111 |
| h | 104 | 68 | 01101000 |
| i | 105 | 69 | 01101001 |
| j | 106 | 6A | 01101010 |
| k | 107 | 6B | 01101011 |
| l | 108 | 6C | 01101100 |
| m | 109 | 6D | 01101101 |
| n | 110 | 6E | 01101110 |
| o | 111 | 6F | 01101111 |
| p | 112 | 70 | 01110000 |
| q | 113 | 71 | 01110001 |
| r | 114 | 72 | 01110010 |
| s | 115 | 73 | 01110011 |
| t | 116 | 74 | 01110100 |
| u | 117 | 75 | 01110101 |
| v | 118 | 76 | 01110110 |
| w | 119 | 77 | 01110111 |
| x | 120 | 78 | 01111000 |
| y | 121 | 79 | 01111001 |
| z | 122 | 7A | 01111010 |
| { | 123 | 7B | 01111011 |
| | | 124 | 7C | 01111100 |
| } | 125 | 7D | 01111101 |
| ~ | 126 | 7E | 01111110 |
The ASCII table above helps developers, students, and engineers quickly look up character encodings in decimal, hexadecimal, and binary formats.
ASCII vs Unicode
ASCII is a 7-bit character encoding standard that supports English letters, numbers, and basic symbols. Unicode is a universal encoding system that supports thousands of international characters, emojis, and multilingual text.
ASCII is still widely used in programming, networking, and low-level systems because of its simplicity and compatibility, while Unicode is commonly used for modern web and application development.
Supported Features
- ASCII ⇄ Binary conversion
- Real-time translation
- 8-bit binary output
- Copy-to-clipboard support
- Instant reverse conversion
- ASCII character support
- Space and symbol conversion
- Developer-friendly formatting
Related Converters
ASCII to binary is one direction in a wider set of conversion tools. Each related page takes a different input format, so you can move between character codes, text, and number systems without starting over.
Binary Translator
Decode binary into text, or encode text into binary, in one place.
Text to Binary Converter
Encode full words and sentences rather than single characters.
Binary to Text Converter
Decode a binary string into readable characters when that is all you need.
Binary to Decimal Converter
Read a binary number as a Base-10 value instead of a character code.
Decimal to Binary Converter
Turn decimal numbers into binary bits for calculations and programming.
Hex to Binary Converter
Work with 0xFF-style values when you need hexadecimal instead of ASCII.
All Binary Tools
See every converter and guide on the site in one place.
FAQ
What is ASCII code?
ASCII is a standard character encoding system that represents letters, numbers, punctuation, and control characters using numeric values.
How many bits are used in ASCII?
Standard ASCII uses 7 bits, while most modern systems store ASCII characters in 8-bit bytes.
What is the binary value of A in ASCII?
The ASCII character A is represented as:
What is the difference between ASCII and Unicode?
ASCII supports 128 standard characters, while Unicode supports thousands of international characters and symbols.
Can I convert binary back to ASCII text?
Yes. Binary values can be translated back into readable ASCII characters instantly using the converter.
Why is ASCII important in computing?
ASCII provides a universal standard for representing text data across computers, programming languages, and communication systems.
What is the ASCII value of space?
The ASCII value of the space character is:
Decimal: 32
Binary: 00100000
Hex: 20
Further Reading
What Is Binary Code? covers the character-code layer that ASCII sits on. The Binary Alphabet chart is the quickest way to check one character, and How to Read Binary Code shows the manual 8-bit method.
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