Octal to Decimal Calculator
Convert an octal number to decimal. Free online calculator with instant results — no login needed.
Decimal
What is the Octal to Decimal Calculator?
Convert an octal number to decimal. Free online calculator with instant results — no login needed.
Enter your values above and the result updates instantly. Enter digits 0–7 only.
Formula
Decimal = sum of octal digits × powers of 8
Example
Decimal
FAQs
What is octal?
A base-8 number system.
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