Octal to Decimal Converter

Convert Your Octal Number to Decimal

Please enter a valid octal number (digits 0-7 only).
Input accepts digits 0-7 only.

Uncover the decimal value of any octal number with our efficient Octal to Decimal Converter. This free online tool simplifies complex base 8 to base 10 conversions, making it an indispensable resource for students, developers, and engineers alike. Understand the logic behind number systems and get instant, accurate results for your octal inputs.

Formula:

To convert an Octal number to a Decimal number, each digit in the octal number is multiplied by 8 raised to the power of its position, starting from 0 for the rightmost digit, and then all products are summed.

For an Octal number (dn dn-1 ... d1 d0)8, the conversion formula is:

Decimal = dn × 8n + dn-1 × 8n-1 + ... + d1 × 81 + d0 × 80

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