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Binary Converter
Convert between binary, decimal, hexadecimal and octal
Quick Reference
| Decimal | Binary | Hex | Octal |
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About Number Systems
Binary (Base 2): Uses only 0 and 1. Fundamental to computing.
Decimal (Base 10): Standard number system using 0-9.
Hexadecimal (Base 16): Uses 0-9 and A-F. Common in programming.
Octal (Base 8): Uses 0-7. Sometimes used in Unix file permissions.