From
Choose a base
Base 2 - Binary
Base 3 - Ternary
Base 4 - Quaternary
Base 5 - Quinary
Base 6 - Senary
Base 7 - Septenary
Base 8 - Octal
Base 9 - Nonary
Base 10 - Decimal
Base 11 - Undecimal
Base 12 - Duodecimal
Base 13 - Tridecimal
Base 14 - Tetradecimal
Base 15 - Pentadecimal
Base 16 - Hexadecimal
To
Choose a base
Base 2 - Binary
Base 3 - Ternary
Base 4 - Quaternary
Base 5 - Quinary
Base 6 - Senary
Base 7 - Septenary
Base 8 - Octal
Base 9 - Nonary
Base 10 - Decimal
Base 11 - Undecimal
Base 12 - Duodecimal
Base 13 - Tridecimal
Base 14 - Tetradecimal
Base 15 - Pentadecimal
Base 16 - Hexadecimal
Fast Conversions
Decimal (10) to Binary (2)
Decimal (10) to Quaternary (4)
Decimal (10) to Octal (8)
Decimal (10) to Duodecimal (12)
Decimal (10) to Hexadecimal (16)
Binary (2) to Quaternary (4)
Binary (2) to Decimal (10)
Binary (2) to Duodecimal (12)
Quaternary (4) to Octal (8)
Quaternary (4) to Decimal (10)
Octal (8) to Ternary (3)
Octal (8) to Decimal (10)
Octal (8) to Duodecimal (12)
Duodecimal (12) to Binary (2)
Duodecimal (12) to Decimal (10)
Hexadecimal (16) to Quaternary (4)
Hexadecimal (16) Decimal (10)
In numbers, letters are used for the digits more than 9:
A➔10
B➔11
C➔12
D➔13
E➔14
F➔15