Base 7 (Septenary) to Base 9 (Nonary) conversion calculator

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1 b7 = 1 b9

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Base 7 (Septenary) to Base 9 (Nonary) conversion formula

Base 7 (Septenary) to Base 9 (Nonary) conversion formula

To convert from Base 7 (Septenary) to Base 9 (Nonary), first convert the number to decimal (multiply each digit by 7 raised to the power of its position, counting from 0 at the right-hand end, and add the results), then convert the decimal number to Base 9 (Nonary) (divide by 9 repeatedly and read the remainders from last to first).

Example: 202 b7 = 100 dec = 121 b9

Base 7 (Septenary) to Base 9 (Nonary) calculation

1 b7 = 1 dec 1 dec = 1 b9

Base 9 (Nonary) to Base 7 (Septenary) (Swap units)

 

 

Base 7 (Septenary) to Base 9 (Nonary) table

Base 7 (Septenary) Base 9 (Nonary)
0 0
1 1
2 2
3 3
4 4
5 5
6 6
10 7
11 8
12 10
13 11
14 12
15 13
16 14
20 15
21 16
22 17
23 18
24 20
25 21
26 22
30 23
31 24
32 25
33 26
Base 7 (Septenary) Base 9 (Nonary)
34 27
35 28
36 30
40 31
41 32
42 33
43 34
44 35
45 36
46 37
50 38
51 40
52 41
53 42
54 43
55 44
56 45
60 46
61 47
62 48
63 50
64 51
65 52
66 53
100 54
Base 7 (Septenary) Base 9 (Nonary)
101 55
102 56
103 57
104 58
105 60
106 61
110 62
111 63
112 64
113 65
114 66
115 67
116 68
120 70
121 71
122 72
123 73
124 74
125 75
126 76
130 77
131 78
132 80
133 81
134 82
Base 7 (Septenary) Base 9 (Nonary)
135 83
136 84
140 85
141 86
142 87
143 88
144 100
145 101
146 102
150 103
151 104
152 105
153 106
154 107
155 108
156 110
160 111
161 112
162 113
163 114
164 115
165 116
166 117
200 118
201 120