11 in Binary

Decimal 11 equals 1011 in binary.

Decimal → Binary

11=1011

Open 11 in the interactive decimal to binary converter →

11 in all number bases

Decimal11

Hexadecimal0xB

Binary1011

Octal13

How 11 converts from decimal to binary

Divide by 2 repeatedly and keep each remainder, then read the remainders from bottom to top:

11÷ 2 =5remainder1

5÷ 2 =2remainder1

2÷ 2 =1remainder0

1÷ 2 =0remainder1

Result (remainders bottom to top): 1011