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Base 25 to Base 18

Base 25 to Base 18 Converter

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

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About These Bases

Base 25

In base 25, each digit position represents a power of 25: the rightmost digit counts individual ones, the next counts groups of 25, the next counts groups of 25×25, and so on — the same place-value idea as base 10, just with 25 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.

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

View this as a standalone, printable table

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