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Base 21 to Base 38

Base 21 to Base 38 Converter

Enter a number in base 21 below to convert it to base 38 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 38

Base 38 works the same way: the rightmost digit counts ones, the next counts groups of 38, the next counts groups of 38×38, and so on, using 38 distinct digits.

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Quick Reference Table
Base 10 Base 21 Base 38
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 a
37 1G b
38 1H 10
39 1I 11
40 1J 12
41 1K 13
42 20 14
43 21 15
44 22 16
45 23 17
46 24 18
47 25 19
48 26 1A
49 27 1B
50 28 1C
51 29 1D
52 2A 1E
53 2B 1F
54 2C 1G
55 2D 1H
56 2E 1I
57 2F 1J
58 2G 1K
59 2H 1L
60 2I 1M
61 2J 1N
62 2K 1O
63 30 1P
64 31 1Q
70 37 1W
80 3H 24
90 46 2E
100 4G 2O
200 9B 5A
300 E6 7Y
400 J1 AK
500 12H D6
600 17C FU
700 1C7 IG
800 1H2 L2
900 20I NQ
1000 25D QC

View this as a standalone, printable table

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