Binary to Octal Converter
Convert binary numbers to octal (base-8) values instantly.
About Binary to Octal Converter
The Binary to Octal Converter transforms binary (base-2) numbers into octal (base-8) representation. Since 3 binary bits correspond to exactly one octal digit, this is a natural conversion.
Each group of 3 binary digits maps to one octal digit (0-7). For example, 111 in binary equals 7 in octal.
Input
Octal Result
How to Use
Enter Binary
Type binary numbers (containing only 0s and 1s), separated by spaces.
Convert
Click "Convert to Octal" to see the octal representation.
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Frequently Asked Questions
How does binary to octal work?
Group binary digits into sets of 3 from right to left, then convert each group: 000=0, 001=1, 010=2, 011=3, 100=4, 101=5, 110=6, 111=7.
What is 11111111 in octal?
11111111 in binary = 377 in octal. Grouping as 011 111 111 gives 3, 7, 7.
What if length is not a multiple of 3?
The tool pads with leading zeros to make the length a multiple of 3 before converting.
Is this tool free?
Yes, this Binary to Octal Converter is completely free and runs locally in your browser.