Base Converter
Convert numbers between binary (base-2), octal (base-8), decimal (base-10), and hexadecimal (base-16)
Input
Result (Base-16)
FF
All Base Conversions
Base-211111111
Base-8377
Base-10255
FAQ
Why is hexadecimal commonly used?
Hex (base-16) compactly represents binary data. One hex digit = 4 bits. It is widely used for memory addresses, color codes (#FF6600), and debugging.
How to convert decimal to binary?
Repeatedly divide by 2 and record remainders from bottom to top. For example, 255 ÷ 2 = 127 R=1, ... finally gives 11111111.
What is the difference between base-2 and base-10?
Base-2 (binary) uses digits 0-1, used by computers. Base-10 (decimal) uses digits 0-9, used by humans. 255 in decimal = 11111111 in binary = FF in hex.