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Base 18 to Base 12

Base 18 to Base 12 Converter

Enter a number in base 18 below to convert it to base 12 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 12

Base 12 works the same way: the rightmost digit counts ones, the next counts groups of 12, the next counts groups of 12×12, and so on, using 12 distinct digits.

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Quick Reference Table
Base 10 Base 18 Base 12
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 10
13 D 11
14 E 12
15 F 13
16 G 14
17 H 15
18 10 16
19 11 17
20 12 18
21 13 19
22 14 1A
23 15 1B
24 16 20
25 17 21
26 18 22
27 19 23
28 1A 24
29 1B 25
30 1C 26
31 1D 27
32 1E 28
33 1F 29
34 1G 2A
35 1H 2B
36 20 30
37 21 31
38 22 32
39 23 33
40 24 34
41 25 35
42 26 36
43 27 37
44 28 38
45 29 39
46 2A 3A
47 2B 3B
48 2C 40
49 2D 41
50 2E 42
51 2F 43
52 2G 44
53 2H 45
54 30 46
55 31 47
56 32 48
57 33 49
58 34 4A
59 35 4B
60 36 50
61 37 51
62 38 52
63 39 53
64 3A 54
70 3G 5A
80 48 68
90 50 76
100 5A 84
200 B2 148
300 GC 210
400 144 294
500 19E 358
600 1F6 420
700 22G 4A4
800 288 568
900 2E0 630
1000 31A 6B4

View this as a standalone, printable table

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