Base 7 to Base 21 converter

Base 7 to Base 21 Converter

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Base 7 and Base 21

Base 7

In base 7, each digit in a number represents the number of copies of that power of 7. That is, the first digit tells you how many ones you have; the second tells you how many 7s you have; the third tells you how many 7x7 you have; the fourth tells you how many 7x7x7 you have; and so on.

Base 21

In base 21, each digit in a number represents the number of copies of that power of 21. That is, the first digit tells you how many ones you have; the second tells you how many 21s you have; the third tells you how many 21x21 you have; the fourth tells you how many 21x21x21 you have; and so on.

Conversion Table

Base 7 to Base 21 Conversion Table

Base 7	Base 21
1	1
2	2
3	3
4	4
5	5
6	6
10	7
11	8
12	9
13	A
14	B
15	C
16	D
20	E
21	F
22	G
23	H
24	I
25	J
26	K
30	10
31	11
32	12
33	13
34	14
35	15
36	16
40	17
41	18
42	19
43	1A
44	1B
45	1C
46	1D
50	1E
51	1F
52	1G
53	1H
54	1I
55	1J
56	1K
60	20
61	21
62	22
63	23
64	24
65	25
66	26
100	27
101	28
102	29
103	2A
104	2B
105	2C
106	2D
110	2E
111	2F
112	2G
113	2H
114	2I
115	2J
116	2K
120	30
121	31

Base 21 to Base 7 Conversion Table

Base 21	Base 7
1	1
2	2
3	3
4	4
5	5
6	6
7	10
8	11
9	12
A	13
B	14
C	15
D	16
E	20
F	21
G	22
H	23
I	24
J	25
K	26
10	30
11	31
12	32
13	33
14	34
15	35
16	36
17	40
18	41
19	42
1A	43
1B	44
1C	45
1D	46
1E	50
1F	51
1G	52
1H	53
1I	54
1J	55
1K	56
20	60
21	61
22	62
23	63
24	64
25	65
26	66
27	100
28	101
29	102
2A	103
2B	104
2C	105
2D	106
2E	110
2F	111
2G	112
2H	113
2I	114
2J	115
2K	116
30	120
31	121

Base 7 to Base 21 Converter