Calculators & Converters

    Convert Decimal 55 to Octal

    (55)10 = (?)8. Decimal 55 to octal conversion provides the detailed information on what is the octal equivalent of the decimal number (55)10 and the step-by-step work for how to convert base-10 number (55)10 into octal (base-8) equivalent manually.

    (55)10 in octal is equal to:
    5510 = 678

    Hence,
    the octal equivalent of decimal number (55)10 is (67)8

    where,
    5510 is the given decimal number,
    10 in 5510 represents the base-10 or decimal number system,
    678 is the octal equivalent of the decimal 55,
    8 in 678 represents the base-8 or octal number system.

    Important Notes: (55)10 in Octal
    The below are some of the important notes to be remembered while converting the (base-10) decimal number 55 into a (base-8) octal equivalent.

    1. The first remainder while performing 55 MOD-8 operation is a Least Significant Bit (LSB).
    2. The final remainder while performing 55 MOD-8 operation is a Most Significant Bit (MSB).
    3. The remainders of 55 MOD-8 operation should be written from MSB to LSB to form the octal equivalent for the given decimal number (55)10.

    For decimal values other than 55, use this below tool:

    How-to: What is (55)10 in octal?

    The below step-by-step solution shows how to convert the decimal number 55 to its equivalent octal number. Representing each remainders of 55 MOD-8 operation in octal equivalents and arranging them from MSB to LSB produces the octal equivalent of 55.

    Solved Example:
    What is the octal equivalent of 55?

    step 1 Observe the input parameters, values and what to be found:

    Input values:
    Decimal Number = (55)10

    What to be found:
    What is the octal equivalent of the decimal number (55)10?
    (55)10 = (?)8

    step 2 Perform successive 55 MOD-8 operation until the quotient becomes 0, and mark the first remainder as LSB and the final remainder as MSB as like the below:

    Successive MOD-8 Operation for 55
    55 MOD-8     55 / 8 = 6  Remainder is 7 → LSB
    6 MOD-8     6 / 8 = 0  Remainder is 6 → MSB


    step 3 Arrange or write the remainders of 55 MOD-8 operation from MSB to LSB produces the equivalent octal number for decimal 55:
    = 67
    (55)10 = (67)8

    Therefore,
    the octal equivalent of decimal 55 is (67)8.
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