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Decimal to Octal Converter

Enter a decimal number and press Convert (e.g. 8 โ†’ 10, 255 โ†’ 377):

Decimal Number (Base 10)
Octal Result (Base 8)

How to Convert Decimal to Octal

Use the repeated division by 8 method:

  1. Divide the decimal number by 8
  2. Record the remainder (0โ€“7)
  3. Divide the quotient by 8
  4. Repeat until quotient is 0
  5. Read remainders bottom-to-top

Example: 255โ‚โ‚€ to octal

255 รท 8 = 31 remainder 7 31 รท 8 = 3 remainder 7 3 รท 8 = 0 remainder 3 Read remainders bottom-up: 377

Decimal to Octal Reference Table

DecimalOctalBinary

See Also

Number Conversion