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Base 11 to Base 20

Base 11 to Base 20 Converter

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

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About These Bases

Base 11

In base 11, each digit position represents a power of 11: the rightmost digit counts individual ones, the next counts groups of 11, the next counts groups of 11×11, and so on — the same place-value idea as base 10, just with 11 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 11 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 10 B
12 11 C
13 12 D
14 13 E
15 14 F
16 15 G
17 16 H
18 17 I
19 18 J
20 19 10
21 1A 11
22 20 12
23 21 13
24 22 14
25 23 15
26 24 16
27 25 17
28 26 18
29 27 19
30 28 1A
31 29 1B
32 2A 1C
33 30 1D
34 31 1E
35 32 1F
36 33 1G
37 34 1H
38 35 1I
39 36 1J
40 37 20
41 38 21
42 39 22
43 3A 23
44 40 24
45 41 25
46 42 26
47 43 27
48 44 28
49 45 29
50 46 2A
51 47 2B
52 48 2C
53 49 2D
54 4A 2E
55 50 2F
56 51 2G
57 52 2H
58 53 2I
59 54 2J
60 55 30
61 56 31
62 57 32
63 58 33
64 59 34
70 64 3A
80 73 40
90 82 4A
100 91 50
200 172 A0
300 253 F0
400 334 100
500 415 150
600 4A6 1A0
700 587 1F0
800 668 200
900 749 250
1000 82A 2A0

View this as a standalone, printable table

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