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Base 64 to Base 21

Base 64 to Base 21 Converter

Enter a number in base 64 below to convert it to base 21 instantly.

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About These Bases

Base 64

In base 64, each digit position represents a power of 64: the rightmost digit counts individual ones, the next counts groups of 64, the next counts groups of 64×64, and so on — the same place-value idea as base 10, just with 64 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 64 Base 21
1 B 1
2 C 2
3 D 3
4 E 4
5 F 5
6 G 6
7 H 7
8 I 8
9 J 9
10 K A
11 L B
12 M C
13 N D
14 O E
15 P F
16 Q G
17 R H
18 S I
19 T J
20 U K
21 V 10
22 W 11
23 X 12
24 Y 13
25 Z 14
26 a 15
27 b 16
28 c 17
29 d 18
30 e 19
31 f 1A
32 g 1B
33 h 1C
34 i 1D
35 j 1E
36 k 1F
37 l 1G
38 m 1H
39 n 1I
40 o 1J
41 p 1K
42 q 20
43 r 21
44 s 22
45 t 23
46 u 24
47 v 25
48 w 26
49 x 27
50 y 28
51 z 29
52 0 2A
53 1 2B
54 2 2C
55 3 2D
56 4 2E
57 5 2F
58 6 2G
59 7 2H
60 8 2I
61 9 2J
62 + 2K
63 / 30
64 BA 31
70 BG 37
80 BQ 3H
90 Ba 46
100 Bk 4G
200 DI 9B
300 Es E6
400 GQ J1
500 H0 12H
600 JY 17C
700 K8 1C7
800 Mg 1H2
900 OE 20I
1000 Po 25D

View this as a standalone, printable table

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