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Base 10 to Base 9

Base 10 to Base 9 Converter

Enter a number in base 10 below to convert it to base 9 instantly.

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About These Bases

Base 10

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

Base 9

Base 9 works the same way: the rightmost digit counts ones, the next counts groups of 9, the next counts groups of 9×9, and so on, using 9 distinct digits.

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Quick Reference Table
Base 10 Base 10 Base 9
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 10
10 10 11
11 11 12
12 12 13
13 13 14
14 14 15
15 15 16
16 16 17
17 17 18
18 18 20
19 19 21
20 20 22
21 21 23
22 22 24
23 23 25
24 24 26
25 25 27
26 26 28
27 27 30
28 28 31
29 29 32
30 30 33
31 31 34
32 32 35
33 33 36
34 34 37
35 35 38
36 36 40
37 37 41
38 38 42
39 39 43
40 40 44
41 41 45
42 42 46
43 43 47
44 44 48
45 45 50
46 46 51
47 47 52
48 48 53
49 49 54
50 50 55
51 51 56
52 52 57
53 53 58
54 54 60
55 55 61
56 56 62
57 57 63
58 58 64
59 59 65
60 60 66
61 61 67
62 62 68
63 63 70
64 64 71
70 70 77
80 80 88
90 90 110
100 100 121
200 200 242
300 300 363
400 400 484
500 500 615
600 600 736
700 700 857
800 800 1078
900 900 1210
1000 1000 1331

View this as a standalone, printable table

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