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Base 9 to Base 28

Base 9 to Base 28 Converter

Enter a number in base 9 below to convert it to base 28 instantly.

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About These Bases

Base 9

In base 9, each digit position represents a power of 9: the rightmost digit counts individual ones, the next counts groups of 9, the next counts groups of 9×9, and so on — the same place-value idea as base 10, just with 9 distinct digits instead of ten.

Base 28

Base 28 works the same way: the rightmost digit counts ones, the next counts groups of 28, the next counts groups of 28×28, and so on, using 28 distinct digits.

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Quick Reference Table
Base 10 Base 9 Base 28
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 10 9
10 11 A
11 12 B
12 13 C
13 14 D
14 15 E
15 16 F
16 17 G
17 18 H
18 20 I
19 21 J
20 22 K
21 23 L
22 24 M
23 25 N
24 26 O
25 27 P
26 28 Q
27 30 R
28 31 10
29 32 11
30 33 12
31 34 13
32 35 14
33 36 15
34 37 16
35 38 17
36 40 18
37 41 19
38 42 1A
39 43 1B
40 44 1C
41 45 1D
42 46 1E
43 47 1F
44 48 1G
45 50 1H
46 51 1I
47 52 1J
48 53 1K
49 54 1L
50 55 1M
51 56 1N
52 57 1O
53 58 1P
54 60 1Q
55 61 1R
56 62 20
57 63 21
58 64 22
59 65 23
60 66 24
61 67 25
62 68 26
63 70 27
64 71 28
70 77 2E
80 88 2O
90 110 36
100 121 3G
200 242 74
300 363 AK
400 484 E8
500 615 HO
600 736 LC
700 857 P0
800 1078 10G
900 1210 144
1000 1331 17K

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