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Base 7 to Base 31

Base 7 to Base 31 Converter

Enter a number in base 7 below to convert it to base 31 instantly.

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About These Bases

Base 7

In base 7, each digit position represents a power of 7: the rightmost digit counts individual ones, the next counts groups of 7, the next counts groups of 7×7, and so on — the same place-value idea as base 10, just with 7 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 7 Base 31
1 1 1
2 2 2
3 3 3
4 4 4
5 5 5
6 6 6
7 10 7
8 11 8
9 12 9
10 13 A
11 14 B
12 15 C
13 16 D
14 20 E
15 21 F
16 22 G
17 23 H
18 24 I
19 25 J
20 26 K
21 30 L
22 31 M
23 32 N
24 33 O
25 34 P
26 35 Q
27 36 R
28 40 S
29 41 T
30 42 U
31 43 10
32 44 11
33 45 12
34 46 13
35 50 14
36 51 15
37 52 16
38 53 17
39 54 18
40 55 19
41 56 1A
42 60 1B
43 61 1C
44 62 1D
45 63 1E
46 64 1F
47 65 1G
48 66 1H
49 100 1I
50 101 1J
51 102 1K
52 103 1L
53 104 1M
54 105 1N
55 106 1O
56 110 1P
57 111 1Q
58 112 1R
59 113 1S
60 114 1T
61 115 1U
62 116 20
63 120 21
64 121 22
70 130 28
80 143 2I
90 156 2S
100 202 37
200 404 6E
300 606 9L
400 1111 CS
500 1313 G4
600 1515 JB
700 2020 MI
800 2222 PP
900 2424 T1
1000 2626 118

View this as a standalone, printable table

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