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🔢 Number Base Converter
Convert numbers between Binary, Decimal, Hexadecimal, and Octal.
Decimal (Base 10)
Standard number system (0-9)
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Binary (Base 2)
Computer number system (0-1)
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Hexadecimal (Base 16)
Used for colors, memory addresses (0-9, A-F)
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Octal (Base 8)
Unix file permissions (0-7)
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📄 Load Example
🗑️ Clear All
💡 Quick Reference
Decimal 42:
Binary: 101010 | Hex: 2A | Octal: 52
Decimal 255:
Binary: 11111111 | Hex: FF | Octal: 377
Decimal 1024:
Binary: 10000000000 | Hex: 400 | Octal: 2000
📚 Common Use Cases
Binary:
Computer science, digital logic, bit manipulation
Hexadecimal:
Colors (#FF5733), memory addresses, hash values
Octal:
Unix file permissions (chmod 755), legacy systems
Decimal:
Standard mathematics and everyday counting