1011 Binary to Octal
1011 binary = 13 octal
1011 written in octal is 13, the number 11 in everyday decimal.
1011 binary = 13 octal
How to convert 1011 to octal
Because 8 = 23, every octal digit stands for exactly 3 binary digits. Split the binary number into groups of 3 from the right (adding leading zeros), then write each group as one octal digit:
| Binary group | Octal digit |
|---|---|
001 | 1 |
011 | 3 |
Result: 1011 in binary = 13 in octal.
1011 (binary) in other systems
| Decimal | 11 |
| Roman numerals | XI |
| Hexadecimal | B |
| Duodecimal | B |
| Ternary | 102 |
| Base 36 | B |
| Vigesimal | B |
| Quaternary | 23 |
| Quinary | 21 |
| Senary | 15 |
Nearby binary to octal conversions
| 110 to octal | 6 |
| 111 to octal | 7 |
| 1000 to octal | 10 |
| 1001 to octal | 11 |
| 1010 to octal | 12 |
| 1100 to octal | 14 |
| 1101 to octal | 15 |
| 1110 to octal | 16 |
| 1111 to octal | 17 |
| 10000 to octal | 20 |
About the number 11
- 11 is an odd number.
- 11 is a prime number.
- Written in binary it needs 4 bits, so it fits in one byte.
Reverse conversion
Frequently asked questions
What is 1011 in octal?
1011 in binary is 13 in octal (the number 11 in decimal).