Binary to Octal Converter

Convert binary numbers (base-2) to octal numbers (base-8) instantly. Easy-to-use binary to octal calculator with detailed conversion steps.

Enter Binary Number
Octal Result

How to Use This Binary to Octal Converter

1Enter Binary Number

Type your binary number into the input field. Only digits 0 and 1 are accepted.

2Click Convert

Press the convert button to transform your binary to octal format instantly.

3View Results

See the octal result with detailed conversion steps showing how the binary to octal conversion works.

4Check Conversion Table

Reference our binary to octal table for quick lookups of common conversions.

What is Binary to Octal Conversion?

Binary to octal conversion is the process of converting numbers from the binary system (base-2) to the octal system (base-8). The binary system uses two digits (0 and 1), while the octal system uses eight digits (0-7). This binary to octal converter simplifies the conversion process by grouping binary digits into sets of three.

How to Convert Binary to Octal

To convert binary to octal, group the binary digits into sets of three from right to left, then convert each group to its octal equivalent. For example, to convert binary 101010 to octal:

Group: 101 | 010
101 (binary) = 5 (octal)
010 (binary) = 2 (octal)
Step 4: Combine the octal digits: 2, 5, 5 = 255

Binary to Octal Lookup Table

Quick reference for converting 3-bit binary groups to octal.

OctalBinaryDecimal
00000
10011
20102
30113
41004
51015
61106
71117

Common Applications

Unix File Permissions

File permissions in Unix/Linux are often represented using Octal numbers (e.g., 755, 644).

r (Read)
4 (100)
w (Write)
2 (010)
x (Execute)
1 (001)
chmod 755 = rwx r-x r-x

Why Use Binary to Octal?

A binary to octal calculator is essential for quick and accurate conversions in computer science and digital systems. Our binary to octal converter provides instant results with a clear binary to octal table and step-by-step explanations, making it perfect for students, programmers, and engineers.

Binary to Octal Conversion Table
BinaryOctal
0000
0011
0102
0113
1004
1015
1106
1117
100010
100111
101012
101113
110014
110115
111016
111117

Features of Our Binary to Octal Calculator

Instant Conversion

Convert binary to octal numbers in milliseconds with our optimized calculator.

Step-by-Step Explanation

Understand the conversion process with detailed steps for educational purposes.

Binary to Octal Table

Quick reference table showing common binary to octal conversions.

No Limits

Convert binary numbers of any length to octal format without restrictions.

Free & Online

Use this binary to octal converter completely free, no installation required.

Mobile Friendly

Access our binary to octal calculator from any device, anywhere.

Frequently Asked Questions

Binary to Octal Converter (Step-by-Step) | TheBinaryKit