🔢 Number System Converter
Convert between binary, decimal, hexadecimal, octal, and other number bases with real-time calculations.
Quick Conversions
Conversion Result
Enter a number to convert
All Base Representations
Binary (Base 2)
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Octal (Base 8)
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Decimal (Base 10)
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Hexadecimal (Base 16)
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Common Number Conversions
| Decimal | Binary | Octal | Hexadecimal |
|---|---|---|---|
| 0 | 0 | 0 | 0 |
| 1 | 1 | 1 | 1 |
| 10 | 1010 | 12 | A |
| 255 | 11111111 | 377 | FF |
| 1000 | 1111101000 | 1750 | 3E8 |
About Number Systems
Binary (Base 2)
Uses only 0 and 1. Fundamental to computer science and digital electronics.
Decimal (Base 10)
Uses digits 0-9. The standard number system used in everyday life.
Hexadecimal (Base 16)
Uses digits 0-9 and letters A-F. Commonly used in programming and computing.
Octal (Base 8)
Uses digits 0-7. Historically used in computing and still used in some systems.