Convert binary numbers (0s and 1s) to octal format instantly using 3-bit grouping method
Binary (base-2) is the fundamental language of computers, using only two digits: 0 and 1. Octal (base-8) uses digits 0 through 7 and is often used as a more compact representation of binary data.
The conversion works because 2³ = 8, which means every 3 binary bits correspond exactly to one octal digit. This relationship makes the conversion straightforward and accurate.
For example, binary 101010 is grouped from right to left as 101 (which equals 5 in decimal) and 010 (which equals 2 in decimal), resulting in octal 52.
This method is widely used in computer science, digital electronics, and programming because it provides a bridge between machine-level binary and human-readable octal notation.
Step 1: Enter your binary number in the input field above. Use only digits 0 and 1. Spaces are automatically removed.
Step 2: Click the "Convert to Octal" button. The tool automatically groups digits in sets of 3 from right to left.
Step 3: View your result instantly in the output box. The octal number appears without any leading zeros.
Step 4: Copy the result using the "Copy" button or manually select and press Ctrl+C.
Pro Tip: If your binary length isn't a multiple of 3, the tool automatically adds leading zeros to make complete groups.
101010 → 101 (5) + 010 (2) = 52 octal
110011 → 110 (6) + 011 (3) = 63 octal
11110000 → 111 (7) + 100 (4) + 000 (0) = 740 octal
101 → 101 (5) = 5 octal
1101 → 001 (1) + 101 (5) = 15 octal