A in Binary
"A" in binary
01000001
Capital A is 65, the first letter in ASCII. Lowercase a is 97, exactly 32 higher, a difference of one bit: 01000001 against 01100001.
Other ways to write it
| Form | Binary | Copy |
|---|---|---|
| As typed | 01000001 | |
| Lowercase | 01100001 | |
| UPPERCASE | 01000001 | |
| No spaces | 01000001 | |
| 7-bit | 1000001 |
Letter by letter
| Character | Binary | Decimal | Hex |
|---|---|---|---|
| A | 01000001 | 65 | 41 |
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Frequently asked questions
How do you write "A" in binary?
Write the ASCII code of each character as 8 bits and put the bytes in order: "A" is 01000001.
Is "A" in binary different in lowercase?
Yes. A lowercase letter is 32 more than its capital, so one bit flips in each letter you change. "a" in binary is 01100001.
How many bits is "A" in binary?
"A" has 1 character, so it takes 1 byte: 8 bits in standard 8-bit binary, or 7 bits in 7-bit ASCII.