Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
About Number Bases
Computers work with different number systems. Binary (base 2) is the native language of computers. Octal (base 8) and hexadecimal (base 16) are shorthand notations commonly used in programming. Decimal (base 10) is the everyday number system humans use.
Quick Reference
- Binary — digits 0-1 (e.g., 1010 = decimal 10)
- Octal — digits 0-7 (e.g., 12 = decimal 10)
- Hex — digits 0-9, A-F (e.g., A = decimal 10)