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Base 21 to Base 27

Base 21 to Base 27 Converter

Enter a number in base 21 below to convert it to base 27 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 27

Base 27 works the same way: the rightmost digit counts ones, the next counts groups of 27, the next counts groups of 27×27, and so on, using 27 distinct digits.

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Quick Reference Table
Base 10 Base 21 Base 27
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 10
28 17 11
29 18 12
30 19 13
31 1A 14
32 1B 15
33 1C 16
34 1D 17
35 1E 18
36 1F 19
37 1G 1A
38 1H 1B
39 1I 1C
40 1J 1D
41 1K 1E
42 20 1F
43 21 1G
44 22 1H
45 23 1I
46 24 1J
47 25 1K
48 26 1L
49 27 1M
50 28 1N
51 29 1O
52 2A 1P
53 2B 1Q
54 2C 20
55 2D 21
56 2E 22
57 2F 23
58 2G 24
59 2H 25
60 2I 26
61 2J 27
62 2K 28
63 30 29
64 31 2A
70 37 2G
80 3H 2Q
90 46 39
100 4G 3J
200 9B 7B
300 E6 B3
400 J1 EM
500 12H IE
600 17C M6
700 1C7 PP
800 1H2 12H
900 20I 169
1000 25D 1A1

View this as a standalone, printable table

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