What Does 01100001 Mean in Binary?
01100001 is the lowercase letter a in ASCII and UTF-8. In decimal it is 97, and in hex 61.
- Character
- a
- Decimal
- 97
- Hex
- 61
01100001 step by step
Each 1 switches on its place value. Add the place values of the 1s to get the ASCII code.
| Bit | Place value | Value |
|---|---|---|
| 0 | 2to the power of 7 = 128 | 0 |
| 1 | 2to the power of 6 = 64 | 64 |
| 1 | 2to the power of 5 = 32 | 32 |
| 0 | 2to the power of 4 = 16 | 0 |
| 0 | 2to the power of 3 = 8 | 0 |
| 0 | 2to the power of 2 = 4 | 0 |
| 0 | 2to the power of 1 = 2 | 0 |
| 1 | 2to the power of 0 = 1 | 1 |
64 + 32 + 1 = 97
Decode more binary
The converter starts with 01100001. Add more bytes to decode a whole message.
Binary to text
| Binary | Dec | Hex | Char |
|---|---|---|---|
| 01100001 | 97 | 61 | a |
Uppercase and lowercase
The capital A is 01000001, which is 65: 32 less than a. Only the third bit from the left changes.
Frequently asked questions
What letter is 01100001 in binary?
01100001 is the lowercase letter a. Its place values add up to 97, and 97 is a in the ASCII table.
What is 01100001 in decimal and hex?
01100001 is 97 in decimal and 61 in hex. The first four bits, 0110, make the hex digit 6, and the last four, 0001, make 1.
Is 01100001 the same in ASCII and UTF-8?
Yes. UTF-8 keeps every ASCII code from 0 to 127 as a single byte, so 01100001 is a in both.