Octal to Binary Converter
Type a octal number to see it in binary. Below: how the conversion works, a worked example and a conversion table.
377 octal = 11111111 binary
How to convert octal to binary
Replace each octal digit with its 3-digit binary equivalent and join them, dropping leading zeros.
Example: 377 to binary
Because 8 = 23, every octal digit stands for exactly 3 binary digits. Write each octal digit as 3 binary digits:
| Binary group | Octal digit |
|---|---|
011 | 3 |
111 | 7 |
111 | 7 |
Result: 377 in octal = 11111111 in binary (leading zeros dropped).
Octal to Binary table
Octal to other systems
Other systems to binary
Reverse conversion
Frequently asked questions
How do you convert octal to binary?
Replace each octal digit with its 3-digit binary equivalent and join them, dropping leading zeros.
What is 377 in binary?
377 in octal is 11111111 in binary.