Question 1

How do I convert decimal to binary?

Accepted Answer

To convert decimal to binary, repeatedly divide the number by 2 and record the remainders. Read the remainders bottom-up. For example, 25 in binary is 11001. Our tool does this instantly for any number.

Question 2

What number bases are supported?

Accepted Answer

Our converter supports bases 2 through 36. Common bases include binary (base 2), octal (base 8), decimal (base 10), and hexadecimal (base 16). Bases above 10 use letters A-Z as digits.

Question 3

Can I convert fractional numbers?

Accepted Answer

Yes, this tool handles both integer and fractional numbers. For example, 10.5 in decimal converts to 1010.1 in binary. Fractional digits use the same positional notation for the target base.

Question 4

What is hexadecimal used for?

Accepted Answer

Hexadecimal (base 16) is widely used in programming for memory addresses, color codes (#FF5733), Unicode code points, and data representation. It is more compact than binary — each hex digit represents exactly 4 binary digits (a nibble).