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Base 21 to Base 16

Base 21 to Base 16 Converter

Enter a number in base 21 below to convert it to base 16 instantly.

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About These Bases

Base 21

In base 21, each digit position represents a power of 21: the rightmost digit counts individual ones, the next counts groups of 21, the next counts groups of 21×21, and so on — the same place-value idea as base 10, just with 21 distinct digits instead of ten.

Base 16

Base 16 works the same way: the rightmost digit counts ones, the next counts groups of 16, the next counts groups of 16×16, and so on, using 16 distinct digits.

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Quick Reference Table
Base 10 Base 21 Base 16
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 10
17 H 11
18 I 12
19 J 13
20 K 14
21 10 15
22 11 16
23 12 17
24 13 18
25 14 19
26 15 1A
27 16 1B
28 17 1C
29 18 1D
30 19 1E
31 1A 1F
32 1B 20
33 1C 21
34 1D 22
35 1E 23
36 1F 24
37 1G 25
38 1H 26
39 1I 27
40 1J 28
41 1K 29
42 20 2A
43 21 2B
44 22 2C
45 23 2D
46 24 2E
47 25 2F
48 26 30
49 27 31
50 28 32
51 29 33
52 2A 34
53 2B 35
54 2C 36
55 2D 37
56 2E 38
57 2F 39
58 2G 3A
59 2H 3B
60 2I 3C
61 2J 3D
62 2K 3E
63 30 3F
64 31 40
70 37 46
80 3H 50
90 46 5A
100 4G 64
200 9B C8
300 E6 12C
400 J1 190
500 12H 1F4
600 17C 258
700 1C7 2BC
800 1H2 320
900 20I 384
1000 25D 3E8

View this as a standalone, printable table

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