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Base 30 to Base 20

Base 30 to Base 20 Converter

Enter a number in base 30 below to convert it to base 20 instantly.

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About These Bases

Base 30

In base 30, each digit position represents a power of 30: the rightmost digit counts individual ones, the next counts groups of 30, the next counts groups of 30×30, and so on — the same place-value idea as base 10, just with 30 distinct digits instead of ten.

Base 20

Base 20 works the same way: the rightmost digit counts ones, the next counts groups of 20, the next counts groups of 20×20, and so on, using 20 distinct digits.

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Quick Reference Table
Base 10 Base 30 Base 20
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 I
19 J J
20 K 10
21 L 11
22 M 12
23 N 13
24 O 14
25 P 15
26 Q 16
27 R 17
28 S 18
29 T 19
30 10 1A
31 11 1B
32 12 1C
33 13 1D
34 14 1E
35 15 1F
36 16 1G
37 17 1H
38 18 1I
39 19 1J
40 1A 20
41 1B 21
42 1C 22
43 1D 23
44 1E 24
45 1F 25
46 1G 26
47 1H 27
48 1I 28
49 1J 29
50 1K 2A
51 1L 2B
52 1M 2C
53 1N 2D
54 1O 2E
55 1P 2F
56 1Q 2G
57 1R 2H
58 1S 2I
59 1T 2J
60 20 30
61 21 31
62 22 32
63 23 33
64 24 34
70 2A 3A
80 2K 40
90 30 4A
100 3A 50
200 6K A0
300 A0 F0
400 DA 100
500 GK 150
600 K0 1A0
700 NA 1F0
800 QK 200
900 100 250
1000 13A 2A0

View this as a standalone, printable table

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