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Base 18 to Base 5

Base 18 to Base 5 Converter

Enter a number in base 18 below to convert it to base 5 instantly.

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About These Bases

Base 18

In base 18, each digit position represents a power of 18: the rightmost digit counts individual ones, the next counts groups of 18, the next counts groups of 18×18, and so on — the same place-value idea as base 10, just with 18 distinct digits instead of ten.

Base 5

Base 5 works the same way: the rightmost digit counts ones, the next counts groups of 5, the next counts groups of 5×5, and so on, using 5 distinct digits.

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Quick Reference Table
Base 10 Base 18 Base 5
1 1 1
2 2 2
3 3 3
4 4 4
5 5 10
6 6 11
7 7 12
8 8 13
9 9 14
10 A 20
11 B 21
12 C 22
13 D 23
14 E 24
15 F 30
16 G 31
17 H 32
18 10 33
19 11 34
20 12 40
21 13 41
22 14 42
23 15 43
24 16 44
25 17 100
26 18 101
27 19 102
28 1A 103
29 1B 104
30 1C 110
31 1D 111
32 1E 112
33 1F 113
34 1G 114
35 1H 120
36 20 121
37 21 122
38 22 123
39 23 124
40 24 130
41 25 131
42 26 132
43 27 133
44 28 134
45 29 140
46 2A 141
47 2B 142
48 2C 143
49 2D 144
50 2E 200
51 2F 201
52 2G 202
53 2H 203
54 30 204
55 31 210
56 32 211
57 33 212
58 34 213
59 35 214
60 36 220
61 37 221
62 38 222
63 39 223
64 3A 224
70 3G 240
80 48 310
90 50 330
100 5A 400
200 B2 1300
300 GC 2200
400 144 3100
500 19E 4000
600 1F6 4400
700 22G 10300
800 288 11200
900 2E0 12100
1000 31A 13000

View this as a standalone, printable table

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