Number Base Converter
Convert numbers between different number systems: binary, octal, decimal, hexadecimal, and custom bases (2-64).
Number Input & Settings
Enter a number and configure conversion settings
Enter the number you want to convert (case insensitive)
Conversion Results
Number converted to all common bases
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Enter a number to see conversions in all formats
Number Base Information
BinaryBase 2
Base 2 - Uses only 0 and 1
Example: 11111111
Characters: 01
OctalBase 8
Base 8 - Uses digits 0-7
Example: 377
Characters: 01234567
DecimalBase 10
Base 10 - Standard counting system
Example: 255
Characters: 0123456789
HexadecimalBase 16
Base 16 - Uses 0-9 and A-F
Example: FF
Characters: 0123456789ABCDEF
Base32Base 32
Base 32 - Uses A-Z and 2-7
Example: H4
Characters: ABCDEFGHIJKLMNOPQRST...
Base64Base 64
Base 64 - Uses A-Z, a-z, 0-9, +, /
Example: D/
Characters: ABCDEFGHIJKLMNOPQRST...
Common Use Cases
• Binary: Computer data, digital circuits, boolean logic
• Octal: Unix file permissions, legacy computing systems
• Decimal: Everyday counting, mathematics, human-readable
• Hexadecimal: Colors (#FF0000), memory addresses, debugging
• Base32: Encoding schemes, shortened URLs, QR codes
• Base64: Data encoding, email attachments, web APIs
Conversion Tips
- • Use A-F for hexadecimal digits above 9
- • Binary only accepts 0 and 1 characters
- • Octal uses digits 0-7 only
- • Custom bases support range 2-64
- • Input is case-insensitive for convenience
- • Large numbers may be truncated in display