Number Base Converter: Binary, Octal, Decimal, Hex
Convert any number between binary, octal, decimal, and hexadecimal with instant equivalents in all bases.
Equivalents of 255
Convert between binary, octal, decimal and hexadecimal.
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Frequently asked questions
How do I convert decimal to binary?
Divide the decimal number by 2, write down the remainder, and repeat with the quotient until it reaches 0. Then read the remainders from bottom to top to get the binary equivalent.
Why is hexadecimal used in computing?
Hexadecimal is a compact way to represent binary data. Because each hex digit corresponds to exactly four binary digits, it makes long binary strings easier to read, write, and debug.
What Is a Number Base?
A number base determines how numbers are written and read. Decimal uses base 10, binary uses base 2, octal uses base 8, and hexadecimal uses base 16. Each position in a numeral represents a power of the base, so understanding bases helps you interpret values across different systems.
How to Use This Base Converter
Enter a number in any field, and the converter instantly updates the binary, octal, decimal, and hexadecimal equivalents. This is ideal for students, programmers, and IT professionals who need quick conversions for coding, networking, or math homework.