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Base 21 to Base 36

Base 21 to Base 36 Converter

Enter a number in base 21 below to convert it to base 36 instantly.

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About These Bases

Base 21

In base 21, each digit position represents a power of 21: the rightmost digit counts individual ones, the next counts groups of 21, the next counts groups of 21×21, and so on — the same place-value idea as base 10, just with 21 distinct digits instead of ten.

Base 36

Base 36 works the same way: the rightmost digit counts ones, the next counts groups of 36, the next counts groups of 36×36, and so on, using 36 distinct digits.

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Quick Reference Table
Base 10 Base 21 Base 36
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 10 L
22 11 M
23 12 N
24 13 O
25 14 P
26 15 Q
27 16 R
28 17 S
29 18 T
30 19 U
31 1A V
32 1B W
33 1C X
34 1D Y
35 1E Z
36 1F 10
37 1G 11
38 1H 12
39 1I 13
40 1J 14
41 1K 15
42 20 16
43 21 17
44 22 18
45 23 19
46 24 1A
47 25 1B
48 26 1C
49 27 1D
50 28 1E
51 29 1F
52 2A 1G
53 2B 1H
54 2C 1I
55 2D 1J
56 2E 1K
57 2F 1L
58 2G 1M
59 2H 1N
60 2I 1O
61 2J 1P
62 2K 1Q
63 30 1R
64 31 1S
70 37 1Y
80 3H 28
90 46 2I
100 4G 2S
200 9B 5K
300 E6 8C
400 J1 B4
500 12H DW
600 17C GO
700 1C7 JG
800 1H2 M8
900 20I P0
1000 25D RS

View this as a standalone, printable table

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