Vigesimal to Duodecimal Converter

Type a vigesimal number to see it in duodecimal. Below: how the conversion works, a worked example and a conversion table.

CF vigesimal = 193 duodecimal

How to convert vigesimal to duodecimal

Go through decimal: first multiply each digit by 20 raised to the power of its position (counting from 0 on the right) and add the results; then divide the number by 12 again and again and write down the remainders; read in reverse order, the remainders are the duodecimal digits.

Example: CF to duodecimal

Step 1: Vigesimal to decimal

Multiply each digit by 20 to the power of its position (0 on the right), then add:

DigitPlace valueDigit × place
C = 12201 = 20240
F = 15200 = 115

240 + 15 = 255

Step 2: Decimal to duodecimal

Divide by 12 repeatedly and keep the remainders. Reading the remainders from the last one to the first gives the duodecimal digits:

DivisionQuotientRemainder (digit)
255 ÷ 12213
21 ÷ 1219
1 ÷ 1201

Result: 255 = 193 in duodecimal.

Vigesimal to Duodecimal table

VigesimalDuodecimal
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
A A
B B
C 10
D 11
E 12
F 13
G 14
H 15
I 16
J 17
10 18
11 19
12 1A
13 1B
14 20
15 21
16 22
17 23
18 24
19 25
1A 26
1B 27

Vigesimal to other systems

Other systems to duodecimal

Reverse conversion

Frequently asked questions

How do you convert vigesimal to duodecimal?

Go through decimal: first multiply each digit by 20 raised to the power of its position (counting from 0 on the right) and add the results; then divide the number by 12 again and again and write down the remainders; read in reverse order, the remainders are the duodecimal digits.

What is CF in duodecimal?

CF in vigesimal is 193 in duodecimal.