Octal to Decimal Converter

To convert an octal number to decimal, multiply each octal digit by its corresponding power of 8 and sum the results. The octal number is represented by powers of 8 from right to left.

Octal Digit to Decimal Conversion Mapping

Octal Digit Decimal Value
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7

Example: Convert Octal 731 to Decimal

Octal Digit Power of 8 Decimal Value Calculation Result
1 8 0 = 1 1 1 × 1 1
3 8 1 = 8 8 3 × 8 24
7 8 2 = 64 64 7 × 64 448
Decimal Result: 473

The decimal equivalent of the octal number 731 is 473 .