9 in binary is 1001. Hexadecimal: 9. Octal: 11.

9 in Binary

10014-bit

The decimal number 9 in binary is 1001.

All number bases

Decimal9Base 10

Binary1001Base 2

Hexadecimal9Base 16

Octal11Base 8

How to convert decimal to binary

To convert 9 to binary, repeatedly divide by 2 and record the remainders from bottom to top. 9 = 1001₂ (4-bit binary number). In hexadecimal: 9. In octal: 11.

Convert any decimal number

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More decimal conversions

0 → 0₂ 1 → 1₂ 2 → 10₂ 3 → 11₂ 4 → 100₂ 5 → 101₂ 6 → 110₂ 7 → 111₂ 8 → 1000₂ 10 → 1010₂ 11 → 1011₂ 12 → 1100₂