3 in Binary

Decimal 3 equals 11 in binary.

Decimal → Binary

3=11

Open 3 in the interactive decimal to binary converter →

3 in all number bases

Decimal3

Hexadecimal0x3

Binary0011

Octal3

How 3 converts from decimal to binary

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

3÷ 2 =1remainder1

1÷ 2 =0remainder1

Result (remainders bottom to top): 11