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Base 3 to Base 18

Base 3 to Base 18 Converter

Enter a number in base 3 below to convert it to base 18 instantly.

About These Bases

Base 3

In base 3, each digit position represents a power of 3: the rightmost digit counts individual ones, the next counts groups of 3, the next counts groups of 3×3, and so on — the same place-value idea as base 10, just with 3 distinct digits instead of ten.

Base 18

Base 18 works the same way: the rightmost digit counts ones, the next counts groups of 18, the next counts groups of 18×18, and so on, using 18 distinct digits.

Quick Reference Table

Base 10	Base 3	Base 18
1	1	1
2	2	2
3	10	3
4	11	4
5	12	5
6	20	6
7	21	7
8	22	8
9	100	9
10	101	A
11	102	B
12	110	C
13	111	D
14	112	E
15	120	F
16	121	G
17	122	H
18	200	10
19	201	11
20	202	12
21	210	13
22	211	14
23	212	15
24	220	16
25	221	17
26	222	18
27	1000	19
28	1001	1A
29	1002	1B
30	1010	1C
31	1011	1D
32	1012	1E
33	1020	1F
34	1021	1G
35	1022	1H
36	1100	20
37	1101	21
38	1102	22
39	1110	23
40	1111	24
41	1112	25
42	1120	26
43	1121	27
44	1122	28
45	1200	29
46	1201	2A
47	1202	2B
48	1210	2C
49	1211	2D
50	1212	2E
51	1220	2F
52	1221	2G
53	1222	2H
54	2000	30
55	2001	31
56	2002	32
57	2010	33
58	2011	34
59	2012	35
60	2020	36
61	2021	37
62	2022	38
63	2100	39
64	2101	3A
70	2121	3G
80	2222	48
90	10100	50
100	10201	5A
200	21102	B2
300	102010	GC
400	112211	144
500	200112	19E
600	211020	1F6
700	221221	22G
800	1002122	288
900	1020100	2E0
1000	1101001	31A

View this as a standalone, printable table

Related Base Conversion Calculators

From Base 3

to Base 2
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 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

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

Base 3 to Base 18