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Base 45 to Base 21

Base 45 to Base 21 Converter

Enter a number in base 45 below to convert it to base 21 instantly.

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About These Bases

Base 45

In base 45, each digit position represents a power of 45: the rightmost digit counts individual ones, the next counts groups of 45, the next counts groups of 45×45, and so on — the same place-value idea as base 10, just with 45 distinct digits instead of ten.

Base 21

Base 21 works the same way: the rightmost digit counts ones, the next counts groups of 21, the next counts groups of 21×21, and so on, using 21 distinct digits.

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Quick Reference Table
Base 10 Base 45 Base 21
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 K
21 L 10
22 M 11
23 N 12
24 O 13
25 P 14
26 Q 15
27 R 16
28 S 17
29 T 18
30 U 19
31 V 1A
32 W 1B
33 X 1C
34 Y 1D
35 Z 1E
36 a 1F
37 b 1G
38 c 1H
39 d 1I
40 e 1J
41 f 1K
42 g 20
43 h 21
44 i 22
45 10 23
46 11 24
47 12 25
48 13 26
49 14 27
50 15 28
51 16 29
52 17 2A
53 18 2B
54 19 2C
55 1A 2D
56 1B 2E
57 1C 2F
58 1D 2G
59 1E 2H
60 1F 2I
61 1G 2J
62 1H 2K
63 1I 30
64 1J 31
70 1P 37
80 1Z 3H
90 20 46
100 2A 4G
200 4K 9B
300 6U E6
400 8e J1
500 B5 12H
600 DF 17C
700 FP 1C7
800 HZ 1H2
900 K0 20I
1000 MA 25D

View this as a standalone, printable table

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