Octal to Binary Converter - Base 8 to Base 2

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'Convert From' and 'Convert To' are same! Please Select a different Source/Target number base.

Enter the octal (0-7) number and press Enter.

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Octal Converters : Octal to Decimal , Octal to Hexadecimal

Complete List of Octal Converters

Conversion Units

Definition : Octal Number System (Base 8)

Octal number system(Oct) has a base of eight and uses combinations of numerals 0 to 7 to represent any number. 12₈ is an example of Octal number equal to decimal 10.

Definition : Binary Number System (Base 2)

A binary number system represents a number in terms of only two numerals, i.e., 0 (zero) and 1 (one). In the word "binary", "bi" means "two". Binary numbers are represented with 2 at their base, for example 1010101₂.

Octal to Binary Conversion Examples

octal (base 8) Number	Equivalent binary (base 2) Number
0	0
1	1
2	10
3	11
4	100
5	101
6	110
7	111
10	1000
11	1001
12	1010
13	1011
14	1100
15	1101
16	1110
17	1111
50	101000
100	1000000
500	101000000
1000	1000000000