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Base 18 to Base 11

Base 18 to Base 11 Converter

Enter a number in base 18 below to convert it to base 11 instantly.

About These Bases

Base 18

In base 18, each digit position represents a power of 18: the rightmost digit counts individual ones, the next counts groups of 18, the next counts groups of 18×18, and so on — the same place-value idea as base 10, just with 18 distinct digits instead of ten.

Base 11

Base 11 works the same way: the rightmost digit counts ones, the next counts groups of 11, the next counts groups of 11×11, and so on, using 11 distinct digits.

Quick Reference Table

Base 10	Base 18	Base 11
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	9
10	A	A
11	B	10
12	C	11
13	D	12
14	E	13
15	F	14
16	G	15
17	H	16
18	10	17
19	11	18
20	12	19
21	13	1A
22	14	20
23	15	21
24	16	22
25	17	23
26	18	24
27	19	25
28	1A	26
29	1B	27
30	1C	28
31	1D	29
32	1E	2A
33	1F	30
34	1G	31
35	1H	32
36	20	33
37	21	34
38	22	35
39	23	36
40	24	37
41	25	38
42	26	39
43	27	3A
44	28	40
45	29	41
46	2A	42
47	2B	43
48	2C	44
49	2D	45
50	2E	46
51	2F	47
52	2G	48
53	2H	49
54	30	4A
55	31	50
56	32	51
57	33	52
58	34	53
59	35	54
60	36	55
61	37	56
62	38	57
63	39	58
64	3A	59
70	3G	64
80	48	73
90	50	82
100	5A	91
200	B2	172
300	GC	253
400	144	334
500	19E	415
600	1F6	4A6
700	22G	587
800	288	668
900	2E0	749
1000	31A	82A

View this as a standalone, printable table

Related Base Conversion Calculators

From Base 18

to Base 2
to Base 3
to Base 4
to Base 5
to Base 6
to Base 7
to Base 8
to Base 9
to Base 10
to Base 11
to Base 12
to Base 13
to Base 14
to Base 15
to Base 16
to Base 17
to Base 19
to Base 20
to Base 21
to Base 22
to Base 23
to Base 24
to Base 25
to Base 26
to Base 27
to Base 28
to Base 29
to Base 30
to Base 31
to Base 32
to Base 33
to Base 34
to Base 35
to Base 36
to Base 37
to Base 38
to Base 39
to Base 40
to Base 41
to Base 42
to Base 43
to Base 44
to Base 45
to Base 46
to Base 47
to Base 48
to Base 49
to Base 50
to Base 51
to Base 52
to Base 53
to Base 54
to Base 55
to Base 56
to Base 57
to Base 58
to Base 59
to Base 60
to Base 61
to Base 62
to Base 63
to Base 64

From Base 11

to Base 2
to Base 3
to Base 4
to Base 5
to Base 6
to Base 7
to Base 8
to Base 9
to Base 10
to Base 12
to Base 13
to Base 14
to Base 15
to Base 16
to Base 17
to Base 18
to Base 19
to Base 20
to Base 21
to Base 22
to Base 23
to Base 24
to Base 25
to Base 26
to Base 27
to Base 28
to Base 29
to Base 30
to Base 31
to Base 32
to Base 33
to Base 34
to Base 35
to Base 36
to Base 37
to Base 38
to Base 39
to Base 40
to Base 41
to Base 42
to Base 43
to Base 44
to Base 45
to Base 46
to Base 47
to Base 48
to Base 49
to Base 50
to Base 51
to Base 52
to Base 53
to Base 54
to Base 55
to Base 56
to Base 57
to Base 58
to Base 59
to Base 60
to Base 61
to Base 62
to Base 63
to Base 64

Base 18 to Base 11