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Base 13 to Base 31

Base 13 to Base 31 Converter

Enter a number in base 13 below to convert it to base 31 instantly.

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About These Bases

Base 13

In base 13, each digit position represents a power of 13: the rightmost digit counts individual ones, the next counts groups of 13, the next counts groups of 13×13, and so on — the same place-value idea as base 10, just with 13 distinct digits instead of ten.

Base 31

Base 31 works the same way: the rightmost digit counts ones, the next counts groups of 31, the next counts groups of 31×31, and so on, using 31 distinct digits.

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Quick Reference Table
Base 10 Base 13 Base 31
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 10 D
14 11 E
15 12 F
16 13 G
17 14 H
18 15 I
19 16 J
20 17 K
21 18 L
22 19 M
23 1A N
24 1B O
25 1C P
26 20 Q
27 21 R
28 22 S
29 23 T
30 24 U
31 25 10
32 26 11
33 27 12
34 28 13
35 29 14
36 2A 15
37 2B 16
38 2C 17
39 30 18
40 31 19
41 32 1A
42 33 1B
43 34 1C
44 35 1D
45 36 1E
46 37 1F
47 38 1G
48 39 1H
49 3A 1I
50 3B 1J
51 3C 1K
52 40 1L
53 41 1M
54 42 1N
55 43 1O
56 44 1P
57 45 1Q
58 46 1R
59 47 1S
60 48 1T
61 49 1U
62 4A 20
63 4B 21
64 4C 22
70 55 28
80 62 2I
90 6C 2S
100 79 37
200 125 6E
300 1A1 9L
400 24A CS
500 2C6 G4
600 372 JB
700 41B MI
800 497 PP
900 543 T1
1000 5BC 118

View this as a standalone, printable table

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