Number System Converter
Convert between decimal, binary, hexadecimal and octal number systems
Frequently Asked Questions
How do I convert decimal to binary?
To convert decimal to binary, repeatedly divide the number by 2 and record the remainders from bottom to top. For example, 10 in decimal is 1010 in binary.
What is hexadecimal used for?
Hexadecimal (base-16) is widely used in computing to represent binary data in a more compact form. Each hex digit represents exactly 4 binary digits. It is commonly used for color codes, memory addresses, and MAC addresses.
What is the difference between binary and octal?
Binary is base-2 (digits 0-1) and octal is base-8 (digits 0-7). Each octal digit represents exactly 3 binary digits, making octal a convenient shorthand for binary in some computing contexts.