Octal To Decimal
Reverse Conversion
How This Converter Works
Converts an unsigned octal integer to decimal using base-8 place values.
Formula or rule
Remove whitespace and underscores, validate digits 0-7, parse in base 8, then format in base 10.
Example
- Input
- 157
- Calculation
- 1×8² + 5×8 + 7 = 64 + 40 + 7 = 111.
- Result
- 111