Octal to Binary Converter
Convert Octal (Base 8) to Binary (Base 2) instantly. Enter any Octal value to get the Binary equivalent.
Octal to Binary
6 units
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Common Numbers Conversions
Octal to Binary Conversion Table
| Octal (Base 8) | Binary (Base 2) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 10 |
| 3 | 11 |
| 4 | 100 |
| 5 | 101 |
| 10 | 1000 |
| 12 | 1010 |
| 17 | 1111 |
| 20 | 10000 |
| 40 | 100000 |
| 100 | 1000000 |
| 144 | 1100100 |
| 200 | 10000000 |
| 377 | 11111111 |
| 1000 | 1000000000 |
| 1750 | 1111101000 |
| 2000 | 10000000000 |
| 7777 | 111111111111 |
| 177777 | 1111111111111111 |
How to Convert Octal to Binary
To convert from Octal (base 8) to Binary (base 2), express the integer value using the digits available in the target base. For example, decimal 255 is 377 in Octal and 11111111 in Binary.
Use the converter above — type any Octal value to instantly see its Binary equivalent. Convert Binary → Octal instead →
Frequently Asked Questions
Q
How do I convert Octal to Binary?
Interpret the Octal (base 8) number as an integer, then express it in base 2. For example, the Octal value FF equals 255 in decimal, which is 11111111 in Binary.
Q
What is 255 in Binary?
255 in decimal = 11111111 in Binary.
About These Units
Octal
Base 8
A positional numeral system with base 8. Uses 8 distinct digits (0–7).
Binary
Base 2
A positional numeral system with base 2. Uses 2 distinct digits (0–1).