Binary to Octal and Octal to Binary Made Simple

This tool converts binary to octal and octal to binary. It shows each step as plain text. You can copy the result with one click. It runs fast in your browser and starts right away.

Get Started in a Flash

Type a value and choose the action. The tool checks the digits and explains the steps. It groups binary bits in threes to build octal. It adds zeros at the start when a group needs it. For octal input it maps each digit to three bits. It trims extra zeros at the start of the final binary string. If input breaks the rules the tool shows a clear message. Press Enter in a field to run the conversion. Use Clear to reset.

Inputs

• Enter Binary Number. Type digits 0 and 1. Use plain digits without spaces or letters.
• Enter Octal Number. Type digits 0 to 7. Use plain digits without spaces or letters.

What the output shows

• Conversion Steps that guide you through the process.
• Original value so you can check your input.
• Padded Binary line if the tool added zeros.
• Groups split in threes for clear mapping.
• A list that maps each group to a single digit.
• Octal Result with a Copy button.
• Each octal digit mapped to a three bit group.
• Combined binary string for the full value.
• Binary Result with a Copy button.

How to Use the Tool

Binary to Octal

1. Click in Enter Binary Number.
2. Type digits 0 and 1 only.
3. Click Convert to Octal or press Enter.
4. Review the groups and the octal result.
5. Click Copy to copy the octal value.
6. Click Clear to reset the field and result.

Octal to Binary

1. Click in Enter Octal Number.
2. Type digits from 0 to 7 only.
3. Click Convert to Binary or press Enter.
4. Review each three bit group and the combined string.
5. Click Copy to copy the binary value.
6. Click Clear to reset the field and result.

Why Choose This Binary to Octal Converter?

The tool teaches while it converts. It shows each step for clear learning. It also works the other way for octal to binary. Copy buttons save time during study or work. Enter keys speed up busy hands.

• Two way converter on one page.
• Transparent steps that mirror manual math.
• Copy and Clear actions for quick reuse.
• Accurate grouping by three bits since 8 equals 2 cubed.
• Great for class, labs, scripts, and code reviews.

Limitations and notes

• Use whole numbers.
• Use digits without spaces or signs.
• Binary input accepts only 0 and 1.
• Octal input accepts digits 0 to 7.
• Binary results drop extra zeros at the start.
• Binary to octal may add zeros at the start for groups of three.

Examples

• Binary 101101 becomes octal 55.
• Binary 1001110 becomes octal 116.
• Octal 755 becomes binary 111101101.
• Octal 10 becomes binary 1000.

Common use cases

• Check homework on number bases with quick feedback.
• Teach how three bits map to one octal digit.
• Read Unix permission values like 755 with ease.
• Shrink long bit strings into a shorter octal form for logs.