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Base 28 to Base 18

Base 28 to Base 18 Converter

Enter a number in base 28 below to convert it to base 18 instantly.

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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 18

Base 18 works the same way: the rightmost digit counts ones, the next counts groups of 18, the next counts groups of 18×18, and so on, using 18 distinct digits.

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Quick Reference Table
Base 10 Base 28 Base 18
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 10
19 J 11
20 K 12
21 L 13
22 M 14
23 N 15
24 O 16
25 P 17
26 Q 18
27 R 19
28 10 1A
29 11 1B
30 12 1C
31 13 1D
32 14 1E
33 15 1F
34 16 1G
35 17 1H
36 18 20
37 19 21
38 1A 22
39 1B 23
40 1C 24
41 1D 25
42 1E 26
43 1F 27
44 1G 28
45 1H 29
46 1I 2A
47 1J 2B
48 1K 2C
49 1L 2D
50 1M 2E
51 1N 2F
52 1O 2G
53 1P 2H
54 1Q 30
55 1R 31
56 20 32
57 21 33
58 22 34
59 23 35
60 24 36
61 25 37
62 26 38
63 27 39
64 28 3A
70 2E 3G
80 2O 48
90 36 50
100 3G 5A
200 74 B2
300 AK GC
400 E8 144
500 HO 19E
600 LC 1F6
700 P0 22G
800 10G 288
900 144 2E0
1000 17K 31A

View this as a standalone, printable table

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