Octal to Decimal converter

Enter octal number:
	8
Convert Reset Swap
Decimal result:
	10
Hex result:
	16
Decimal calculation:

Decimal to octal converter ►

How to change over from octal to decimal

A ordinary decimal number is the amount of the digits duplicated with 10ⁿ.

Example #1

137 in base 10 is equivalent to every digit duplicated with its comparing 10ⁿ:

137₁₀ = 1×10²+3×10¹+7×10⁰ = 100+30+7

Octal numbers are perused the same way, yet every digit counts 8ⁿ rather than 10ⁿ.

Multiply every digit of the hex number with its comparing 8ⁿ.

Example #2

37 in base 8 is equivalent to every digit duplicated with its relating 8ⁿ:

37₈ = 3×8¹+7×8⁰ = 24+7 = 31

Example #3

7014 in base 8 is equivalent to every digit duplicated with its comparing force of 8:

7014₈ = 7×8³+0×8²+1×8¹+4×8⁰= 3584+0+8+4 = 3596

Octal to decimal change table

Octal base 8	Decimal base 10
0	0
1	1
2	2
3	3
4	4
5	5
6	6
7	7
10	8
11	9
12	10
13	11
14	12
15	13
16	14
17	15
20	16
30	24
40	32
50	40
60	48
70	56
100	64

 

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