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Base 12 to Base 18

Base 12 to Base 18 Converter

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

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About These Bases

Base 12

In base 12, each digit position represents a power of 12: the rightmost digit counts individual ones, the next counts groups of 12, the next counts groups of 12×12, and so on — the same place-value idea as base 10, just with 12 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 12 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 10 C
13 11 D
14 12 E
15 13 F
16 14 G
17 15 H
18 16 10
19 17 11
20 18 12
21 19 13
22 1A 14
23 1B 15
24 20 16
25 21 17
26 22 18
27 23 19
28 24 1A
29 25 1B
30 26 1C
31 27 1D
32 28 1E
33 29 1F
34 2A 1G
35 2B 1H
36 30 20
37 31 21
38 32 22
39 33 23
40 34 24
41 35 25
42 36 26
43 37 27
44 38 28
45 39 29
46 3A 2A
47 3B 2B
48 40 2C
49 41 2D
50 42 2E
51 43 2F
52 44 2G
53 45 2H
54 46 30
55 47 31
56 48 32
57 49 33
58 4A 34
59 4B 35
60 50 36
61 51 37
62 52 38
63 53 39
64 54 3A
70 5A 3G
80 68 48
90 76 50
100 84 5A
200 148 B2
300 210 GC
400 294 144
500 358 19E
600 420 1F6
700 4A4 22G
800 568 288
900 630 2E0
1000 6B4 31A

View this as a standalone, printable table

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