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Base 20 to Base 11

Base 20 to Base 11 Converter

Enter a number in base 20 below to convert it to base 11 instantly.

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About These Bases

Base 20

In base 20, each digit position represents a power of 20: the rightmost digit counts individual ones, the next counts groups of 20, the next counts groups of 20×20, and so on — the same place-value idea as base 10, just with 20 distinct digits instead of ten.

Base 11

Base 11 works the same way: the rightmost digit counts ones, the next counts groups of 11, the next counts groups of 11×11, and so on, using 11 distinct digits.

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Quick Reference Table
Base 10 Base 20 Base 11
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 10
12 C 11
13 D 12
14 E 13
15 F 14
16 G 15
17 H 16
18 I 17
19 J 18
20 10 19
21 11 1A
22 12 20
23 13 21
24 14 22
25 15 23
26 16 24
27 17 25
28 18 26
29 19 27
30 1A 28
31 1B 29
32 1C 2A
33 1D 30
34 1E 31
35 1F 32
36 1G 33
37 1H 34
38 1I 35
39 1J 36
40 20 37
41 21 38
42 22 39
43 23 3A
44 24 40
45 25 41
46 26 42
47 27 43
48 28 44
49 29 45
50 2A 46
51 2B 47
52 2C 48
53 2D 49
54 2E 4A
55 2F 50
56 2G 51
57 2H 52
58 2I 53
59 2J 54
60 30 55
61 31 56
62 32 57
63 33 58
64 34 59
70 3A 64
80 40 73
90 4A 82
100 50 91
200 A0 172
300 F0 253
400 100 334
500 150 415
600 1A0 4A6
700 1F0 587
800 200 668
900 250 749
1000 2A0 82A

View this as a standalone, printable table

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