4 in Binary

Decimal 4 equals 100 in binary.

Decimal → Binary

4=100

Open 4 in the interactive decimal to binary converter →

4 in all number bases

Decimal4

Hexadecimal0x4

Binary0100

Octal4

How 4 converts from decimal to binary

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

4÷ 2 =2remainder0

2÷ 2 =1remainder0

1÷ 2 =0remainder1

Result (remainders bottom to top): 100