Math Tools Math Tools

Base 28 to Base 9

Base 28 to Base 9 Converter

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

Advertisement

About These Bases

Base 28

In base 28, each digit position represents a power of 28: the rightmost digit counts individual ones, the next counts groups of 28, the next counts groups of 28×28, and so on — the same place-value idea as base 10, just with 28 distinct digits instead of ten.

Base 9

Base 9 works the same way: the rightmost digit counts ones, the next counts groups of 9, the next counts groups of 9×9, and so on, using 9 distinct digits.

Advertisement

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

View this as a standalone, printable table

Related Base Conversion Calculators

Related pages

Advertisement