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Base 40 to Base 13

Base 40 to Base 13 Converter

Enter a number in base 40 below to convert it to base 13 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 13

Base 13 works the same way: the rightmost digit counts ones, the next counts groups of 13, the next counts groups of 13×13, and so on, using 13 distinct digits.

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Quick Reference Table
Base 10 Base 40 Base 13
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 10
14 E 11
15 F 12
16 G 13
17 H 14
18 I 15
19 J 16
20 K 17
21 L 18
22 M 19
23 N 1A
24 O 1B
25 P 1C
26 Q 20
27 R 21
28 S 22
29 T 23
30 U 24
31 V 25
32 W 26
33 X 27
34 Y 28
35 Z 29
36 a 2A
37 b 2B
38 c 2C
39 d 30
40 10 31
41 11 32
42 12 33
43 13 34
44 14 35
45 15 36
46 16 37
47 17 38
48 18 39
49 19 3A
50 1A 3B
51 1B 3C
52 1C 40
53 1D 41
54 1E 42
55 1F 43
56 1G 44
57 1H 45
58 1I 46
59 1J 47
60 1K 48
61 1L 49
62 1M 4A
63 1N 4B
64 1O 4C
70 1U 55
80 20 62
90 2A 6C
100 2K 79
200 50 125
300 7K 1A1
400 A0 24A
500 CK 2C6
600 F0 372
700 HK 41B
800 K0 497
900 MK 543
1000 P0 5BC

View this as a standalone, printable table

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