Convert between binary, octal, decimal and hex
Programmers and computer science students frequently need to convert numbers between different bases. Our Number Base Converter handles the four most common number systems: decimal (base 10), binary (base 2), octal (base 8), and hexadecimal (base 16). Enter a value in any field and the other three update instantly.
Binary is the fundamental language of computers, hexadecimal is widely used in programming for memory addresses and color codes, octal appears in Unix file permissions, and decimal is our everyday number system. This tool makes conversions instant and eliminates manual calculation errors. All processing happens locally in your browser.