Binary alphabet
Every letter and digit in 8-bit binary. Print this page for a clean chart, or type below to spell your own word.
Put this code on a gift. It is filled in for you at checkout.
The binary alphabet chart
Capital letters start at 01000001 (65) and lowercase letters at 01100001 (97). Use your browser's print option for a one-page chart.
Capital letters
| Character | Binary |
|---|---|
| A | 01000001 |
| B | 01000010 |
| C | 01000011 |
| D | 01000100 |
| E | 01000101 |
| F | 01000110 |
| G | 01000111 |
| H | 01001000 |
| I | 01001001 |
| J | 01001010 |
| K | 01001011 |
| L | 01001100 |
| M | 01001101 |
| N | 01001110 |
| O | 01001111 |
| P | 01010000 |
| Q | 01010001 |
| R | 01010010 |
| S | 01010011 |
| T | 01010100 |
| U | 01010101 |
| V | 01010110 |
| W | 01010111 |
| X | 01011000 |
| Y | 01011001 |
| Z | 01011010 |
Lowercase letters
| Character | Binary |
|---|---|
| a | 01100001 |
| b | 01100010 |
| c | 01100011 |
| d | 01100100 |
| e | 01100101 |
| f | 01100110 |
| g | 01100111 |
| h | 01101000 |
| i | 01101001 |
| j | 01101010 |
| k | 01101011 |
| l | 01101100 |
| m | 01101101 |
| n | 01101110 |
| o | 01101111 |
| p | 01110000 |
| q | 01110001 |
| r | 01110010 |
| s | 01110011 |
| t | 01110100 |
| u | 01110101 |
| v | 01110110 |
| w | 01110111 |
| x | 01111000 |
| y | 01111001 |
| z | 01111010 |
Digits
| Character | Binary |
|---|---|
| 0 | 00110000 |
| 1 | 00110001 |
| 2 | 00110010 |
| 3 | 00110011 |
| 4 | 00110100 |
| 5 | 00110101 |
| 6 | 00110110 |
| 7 | 00110111 |
| 8 | 00111000 |
| 9 | 00111001 |
Questions
What is A in binary?
Capital A is 01000001 and lowercase a is 01100001.
Why do the codes for capitals and lowercase letters differ by one bit?
ASCII puts lowercase letters exactly 32 after capitals, and 32 is a single bit (00100000).
Can teachers use this chart?
Yes. It is free to print and share in class.