Number Base Converter
Convert numbers between binary, octal, decimal, and hexadecimal.
Input Number
Enter a number and select its base
Conversions
Number in all bases
About Number Bases
Number Systems
- Binary (Base 2): Uses digits 0-1, prefix 0b
- Octal (Base 8): Uses digits 0-7, prefix 0o
- Decimal (Base 10): Uses digits 0-9, no prefix
- Hexadecimal (Base 16): Uses 0-9 and A-F, prefix 0x
Common Use Cases
- Programming: Memory addresses, bit manipulation
- Networking: IP addresses, MAC addresses
- Color Codes: RGB values in hexadecimal
- Permissions: Unix file permissions in octal
Conversion Examples
Decimal 255 = Binary 11111111 = Octal 377 = Hex FF
Decimal 42 = Binary 101010 = Octal 52 = Hex 2A
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