Octal (base 8)s to Binary (base 2)s (base 8 to base 2)
Free online octal (base 8) to binary (base 2) converter. Type a value, get an instant exact result — plus the formula, a ready-made conversion table, and reverse conversion.
NUMBERS (BASE) CONVERTER — INSTANT RESULT
Positional notation: each digit is worth digit × 8^position in Octal (base 8), and the reverse division/remainder method converts to Binary (base 2).
Octal (base 8)s to Binary (base 2)s conversion table
| Octal (base 8)s (base 8) | Binary (base 2)s (base 2) |
|---|---|
| 18 Octal (base 8) | 12 Binary (base 2) |
| 28 Octal (base 8) | 102 Binary (base 2) |
| 38 Octal (base 8) | 112 Binary (base 2) |
| 48 Octal (base 8) | 1002 Binary (base 2) |
| 58 Octal (base 8) | 1012 Binary (base 2) |
| 68 Octal (base 8) | 1102 Binary (base 2) |
| 78 Octal (base 8) | 1112 Binary (base 2) |
| 108 Octal (base 8) | 10002 Binary (base 2) |
| 118 Octal (base 8) | 10012 Binary (base 2) |
| 128 Octal (base 8) | 10102 Binary (base 2) |
| 178 Octal (base 8) | 11112 Binary (base 2) |
| 248 Octal (base 8) | 101002 Binary (base 2) |
| 318 Octal (base 8) | 110012 Binary (base 2) |
| 368 Octal (base 8) | 111102 Binary (base 2) |
| 508 Octal (base 8) | 1010002 Binary (base 2) |
| 628 Octal (base 8) | 1100102 Binary (base 2) |
| 1138 Octal (base 8) | 10010112 Binary (base 2) |
| 1448 Octal (base 8) | 11001002 Binary (base 2) |
| 3728 Octal (base 8) | 111110102 Binary (base 2) |
| 7648 Octal (base 8) | 1111101002 Binary (base 2) |
| 17508 Octal (base 8) | 11111010002 Binary (base 2) |
How to convert octal (base 8)s to binary (base 2)s
Enter a octal (base 8) value and read the exact binary (base 2) equivalent. The converter handles arbitrary precision.
Convert numbers between binary, octal, decimal, hexadecimal and other positional bases from 2 to 36. Uses arbitrary-precision digit conversion for exact results.
Frequently asked questions
How many binary (base 2)s are in one octal (base 8)?
Use the converter above — enter 1 in the value field and select Octal (base 8) → Binary (base 2).
How do I convert base 8 to base 2?
Enter your value above and choose Octal (base 8) as the source and Binary (base 2) as the target unit.
Is this base 8 to base 2 converter free?
Yes — every ToolsEngg converter is free, runs entirely in your browser, and requires no sign-up.