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Base 7 to Base 28

Base 7 to Base 28 Converter

Enter a number in base 7 below to convert it to base 28 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 28

Base 28 works the same way: the rightmost digit counts ones, the next counts groups of 28, the next counts groups of 28×28, and so on, using 28 distinct digits.

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Quick Reference Table
Base 10 Base 7 Base 28
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 10
29 41 11
30 42 12
31 43 13
32 44 14
33 45 15
34 46 16
35 50 17
36 51 18
37 52 19
38 53 1A
39 54 1B
40 55 1C
41 56 1D
42 60 1E
43 61 1F
44 62 1G
45 63 1H
46 64 1I
47 65 1J
48 66 1K
49 100 1L
50 101 1M
51 102 1N
52 103 1O
53 104 1P
54 105 1Q
55 106 1R
56 110 20
57 111 21
58 112 22
59 113 23
60 114 24
61 115 25
62 116 26
63 120 27
64 121 28
70 130 2E
80 143 2O
90 156 36
100 202 3G
200 404 74
300 606 AK
400 1111 E8
500 1313 HO
600 1515 LC
700 2020 P0
800 2222 10G
900 2424 144
1000 2626 17K

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