Binary Decimal Hex Converter Tool. Convert between Binary, Decimal, and Hexadecimal number systems instantly. Enter a number in any field to see its equivalent in other bases.
A number system is a mathematical notation for representing numbers. Different number systems use different symbols and rules to represent values. The most commonly used systems are binary (base-2), decimal (base-10), hexadecimal (base-16), and octal (base-8).
Different number systems are optimized for different uses. Binary is fundamental to computer operations, hexadecimal provides a compact way to represent binary data, and decimal is natural for human counting.
In 8 bits, you can represent decimal numbers from 0 to 255 (binary 11111111).
Hexadecimal provides a more concise way to represent binary data, where each hexadecimal digit represents exactly 4 binary digits.