Math Tools Math Tools

Base 11 to Base 18

Base 11 to Base 18 Converter

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

Advertisement

About These Bases

Base 11

In base 11, each digit position represents a power of 11: the rightmost digit counts individual ones, the next counts groups of 11, the next counts groups of 11×11, and so on — the same place-value idea as base 10, just with 11 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.

Advertisement

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

View this as a standalone, printable table

Related Base Conversion Calculators

Related pages

Advertisement