Octal to Decimal Converter

Convert any Octal number to Decimal Number Calculator

User Guide

  1. Input Section
    1. Enter the octal number in the text area labeled "Octal Numbers".
    2. Use the "Clear" button beneath the input field to erase your entry if needed.
  2. Output Section
    1. The decimal equivalent will appear in the output area.
    2. Use the "Copy" button below the output area to copy the result to your clipboard.

The octal system (base-8) uses digits 0 through 7 and is often used in computing as a more concise alternative to binary. The decimal system (base-10) is the standard system for everyday numerical representation. Converting octal to decimal involves positional value calculations based on powers of 8.

Conversion Method

Steps to Convert

  1. Write down the octal number and assign positional values to each digit, starting from 0 on the right (least significant digit).
  2. Multiply each digit by 8position (the positional value).
  3. Add all the results together to obtain the decimal equivalent.

Example

Convert 5318 (octal) to decimal:

Assign positions and compute values:

5 × 82 = 5 × 64 =320
3 × 81 = 3 × 8 = 24
1 × 80 = 1 × 1 = 1

Add the values: 320+24+1 = 345

Result: 5318 = 34510

Prof. Waino Pagac
Prof. Waino Pagac
Ph.D. MIT

Professor Waino Pagac, an esteemed expert in computer science and mathematics, and the brilliant mind behind this comprehensive guide on number systems. With a wealth of knowledge and years of experience in academia and research.