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Base 18 to Base 25

Base 18 to Base 25 Converter

Enter a number in base 18 below to convert it to base 25 instantly.

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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 25

Base 25 works the same way: the rightmost digit counts ones, the next counts groups of 25, the next counts groups of 25×25, and so on, using 25 distinct digits.

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Quick Reference Table
Base 10 Base 18 Base 25
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 B
12 C C
13 D D
14 E E
15 F F
16 G G
17 H H
18 10 I
19 11 J
20 12 K
21 13 L
22 14 M
23 15 N
24 16 O
25 17 10
26 18 11
27 19 12
28 1A 13
29 1B 14
30 1C 15
31 1D 16
32 1E 17
33 1F 18
34 1G 19
35 1H 1A
36 20 1B
37 21 1C
38 22 1D
39 23 1E
40 24 1F
41 25 1G
42 26 1H
43 27 1I
44 28 1J
45 29 1K
46 2A 1L
47 2B 1M
48 2C 1N
49 2D 1O
50 2E 20
51 2F 21
52 2G 22
53 2H 23
54 30 24
55 31 25
56 32 26
57 33 27
58 34 28
59 35 29
60 36 2A
61 37 2B
62 38 2C
63 39 2D
64 3A 2E
70 3G 2K
80 48 35
90 50 3F
100 5A 40
200 B2 80
300 GC C0
400 144 G0
500 19E K0
600 1F6 O0
700 22G 130
800 288 170
900 2E0 1B0
1000 31A 1F0

View this as a standalone, printable table

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