• Duodecimal (base 12) to Base 10
• Duodecimal (base 12) to Base 11
• Duodecimal (base 12) to Base 12
• Duodecimal (base 12) to Base 13
• Duodecimal (base 12) to Base 14
• Duodecimal (base 12) to Base 15
• Duodecimal (base 12) to Base 16
• Duodecimal (base 12) to Base 17
• Duodecimal (base 12) to Base 18
• Duodecimal (base 12) to Base 19
• Duodecimal (base 12) to Base 2
• Duodecimal (base 12) to Base 20
• Duodecimal (base 12) to Base 21
• Duodecimal (base 12) to Base 22
• Duodecimal (base 12) to Base 23
• Duodecimal (base 12) to Base 24
• Duodecimal (base 12) to Base 25
• Duodecimal (base 12) to Base 26
• Duodecimal (base 12) to Base 27
• Duodecimal (base 12) to Base 28
• Duodecimal (base 12) to Base 29
• Duodecimal (base 12) to Base 3
• Duodecimal (base 12) to Base 30
• Duodecimal (base 12) to Base 31
• Duodecimal (base 12) to Base 32
• Duodecimal (base 12) to Base 33
• Duodecimal (base 12) to Base 34
• Duodecimal (base 12) to Base 35
• Duodecimal (base 12) to Base 36
• Duodecimal (base 12) to Base 4
• Duodecimal (base 12) to Base 5
• Duodecimal (base 12) to Base 6
• Duodecimal (base 12) to Base 7
• Duodecimal (base 12) to Base 8
• Duodecimal (base 12) to Base 9
• Duodecimal (base 12) to Binary (base 2)
• Duodecimal (base 12) to Decimal
• Duodecimal (base 12) to Hexadecimal (base 16)
• Duodecimal (base 12) to Hexatrigesimal (base 36)
• Duodecimal (base 12) to Octal (base 8)
• Duodecimal (base 12) to Quaternary (base 4)
• Duodecimal (base 12) to Quinary (base 5)
• Duodecimal (base 12) to Senary (base 6)
• Duodecimal (base 12) to Ternary (base 3)
• Duodecimal (base 12) to Hexadecimal (base 16)

• Decimal to Quaternary (base 4)
• Decimal to Quinary (base 5)
• Quaternary (base 4) to Decimal
• Hexatrigesimal (base 36) to Decimal
• Binary (base 2) to Quinary (base 5)
• Decimal to Duodecimal (base 12)
• Quinary (base 5) to Decimal
• Senary (base 6) to Decimal

The duodecimal system (also known as base 12 or dozenal) is a positional notation numeral system using twelve as its base.