Binary to Octal Converter

Convert Binary (Base 2) to Octal (Base 8) instantly. Enter any Binary value to get the Octal equivalent.

Binary to Octal 6 units

Common Numbers Conversions

Binary to Octal Conversion Table

Binary (Base 2) Octal (Base 8)
0 0
1 1
10 2
11 3
100 4
101 5
1000 10
1010 12
1111 17
10000 20
100000 40
1000000 100
1100100 144
10000000 200
11111111 377
1000000000 1000
1111101000 1750
10000000000 2000
111111111111 7777
1111111111111111 177777

📐 How to Convert Binary to Octal

To convert from Binary (base 2) to Octal (base 8), express the integer value using the digits available in the target base. For example, decimal 255 is 11111111 in Binary and 377 in Octal.

Use the converter above — type any Binary value to instantly see its Octal equivalent. Convert Octal → Binary instead →

Frequently Asked Questions

Q How do I convert Binary to Octal?
Interpret the Binary (base 2) number as an integer, then express it in base 8. For example, the Binary value FF equals 255 in decimal, which is 377 in Octal.
Q What is 255 in Octal?
255 in decimal = 377 in Octal.

ℹ️ About These Units

Binary
Base 2

A positional numeral system with base 2. Uses 2 distinct digits (0–1).

Octal
Base 8

A positional numeral system with base 8. Uses 8 distinct digits (0–7).