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Base 26 to Base 21

Base 26 to Base 21 Converter

Enter a number in base 26 below to convert it to base 21 instantly.

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About These Bases

Base 26

In base 26, each digit position represents a power of 26: the rightmost digit counts individual ones, the next counts groups of 26, the next counts groups of 26×26, and so on — the same place-value idea as base 10, just with 26 distinct digits instead of ten.

Base 21

Base 21 works the same way: the rightmost digit counts ones, the next counts groups of 21, the next counts groups of 21×21, and so on, using 21 distinct digits.

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Quick Reference Table
Base 10 Base 26 Base 21
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 C C
13 D D
14 E E
15 F F
16 G G
17 H H
18 I I
19 J J
20 K K
21 L 10
22 M 11
23 N 12
24 O 13
25 P 14
26 10 15
27 11 16
28 12 17
29 13 18
30 14 19
31 15 1A
32 16 1B
33 17 1C
34 18 1D
35 19 1E
36 1A 1F
37 1B 1G
38 1C 1H
39 1D 1I
40 1E 1J
41 1F 1K
42 1G 20
43 1H 21
44 1I 22
45 1J 23
46 1K 24
47 1L 25
48 1M 26
49 1N 27
50 1O 28
51 1P 29
52 20 2A
53 21 2B
54 22 2C
55 23 2D
56 24 2E
57 25 2F
58 26 2G
59 27 2H
60 28 2I
61 29 2J
62 2A 2K
63 2B 30
64 2C 31
70 2I 37
80 32 3H
90 3C 46
100 3M 4G
200 7I 9B
300 BE E6
400 FA J1
500 J6 12H
600 N2 17C
700 10O 1C7
800 14K 1H2
900 18G 20I
1000 1CC 25D

View this as a standalone, printable table

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