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Base 12 to Base 20

Base 12 to Base 20 Converter

Enter a number in base 12 below to convert it to base 20 instantly.

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About These Bases

Base 12

In base 12, each digit position represents a power of 12: the rightmost digit counts individual ones, the next counts groups of 12, the next counts groups of 12×12, and so on — the same place-value idea as base 10, just with 12 distinct digits instead of ten.

Base 20

Base 20 works the same way: the rightmost digit counts ones, the next counts groups of 20, the next counts groups of 20×20, and so on, using 20 distinct digits.

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Quick Reference Table
Base 10 Base 12 Base 20
1 1 1
2 2 2
3 3 3
4 4 4
5 5 5
6 6 6
7 7 7
8 8 8
9 9 9
10 A A
11 B B
12 10 C
13 11 D
14 12 E
15 13 F
16 14 G
17 15 H
18 16 I
19 17 J
20 18 10
21 19 11
22 1A 12
23 1B 13
24 20 14
25 21 15
26 22 16
27 23 17
28 24 18
29 25 19
30 26 1A
31 27 1B
32 28 1C
33 29 1D
34 2A 1E
35 2B 1F
36 30 1G
37 31 1H
38 32 1I
39 33 1J
40 34 20
41 35 21
42 36 22
43 37 23
44 38 24
45 39 25
46 3A 26
47 3B 27
48 40 28
49 41 29
50 42 2A
51 43 2B
52 44 2C
53 45 2D
54 46 2E
55 47 2F
56 48 2G
57 49 2H
58 4A 2I
59 4B 2J
60 50 30
61 51 31
62 52 32
63 53 33
64 54 34
70 5A 3A
80 68 40
90 76 4A
100 84 50
200 148 A0
300 210 F0
400 294 100
500 358 150
600 420 1A0
700 4A4 1F0
800 568 200
900 630 250
1000 6B4 2A0

View this as a standalone, printable table

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