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Base 40 to Base 12

Base 40 to Base 12 Converter

Enter a number in base 40 below to convert it to base 12 instantly.

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About These Bases

Base 40

In base 40, each digit position represents a power of 40: the rightmost digit counts individual ones, the next counts groups of 40, the next counts groups of 40×40, and so on — the same place-value idea as base 10, just with 40 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 40 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 I 16
19 J 17
20 K 18
21 L 19
22 M 1A
23 N 1B
24 O 20
25 P 21
26 Q 22
27 R 23
28 S 24
29 T 25
30 U 26
31 V 27
32 W 28
33 X 29
34 Y 2A
35 Z 2B
36 a 30
37 b 31
38 c 32
39 d 33
40 10 34
41 11 35
42 12 36
43 13 37
44 14 38
45 15 39
46 16 3A
47 17 3B
48 18 40
49 19 41
50 1A 42
51 1B 43
52 1C 44
53 1D 45
54 1E 46
55 1F 47
56 1G 48
57 1H 49
58 1I 4A
59 1J 4B
60 1K 50
61 1L 51
62 1M 52
63 1N 53
64 1O 54
70 1U 5A
80 20 68
90 2A 76
100 2K 84
200 50 148
300 7K 210
400 A0 294
500 CK 358
600 F0 420
700 HK 4A4
800 K0 568
900 MK 630
1000 P0 6B4

View this as a standalone, printable table

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