Valid: 0-1
Valid: 0-7
Valid: 0-9
Valid: 0-9, A-F (case insensitive)
Conversion Error
Additional Information
Number System Quick Reference
Binary (Base 2)
Uses only 0 and 1. Common in computer science as it represents on/off states.
Example: 1010 = 10 in decimal
Octal (Base 8)
Uses digits 0-7. Historically used in computing for more compact representation than binary.
Example: 12 = 10 in decimal
Decimal (Base 10)
The standard number system we use daily, with digits 0-9.
Example: 10 = 10 in decimal
Hexadecimal (Base 16)
Uses 0-9 and A-F. Commonly used in programming for memory addresses and colors.
Example: A = 10 in decimal, FF = 255