Base 9 to base 21 conversion

Base 9 to base 21 converter lets you convert number system between base 9 to base 21 and will give you the result with calculation steps and it also supports decimal numbers. Enter your number and choose bases below to start a conversion.

Result

How to convert 1 in base 9 to base 21?

1
1 base 9 = 1 base 21

Calculation steps

To convert 1 in base 9 to base 21, take the following steps.

  1. Convert 1 from base 9 to base 10.
  2. Convert result of the previous step from base 10 to base 21.

Step 1: convert 1 from base 9 to base 10

To start the calculation, let d is the number in each digit and n is the exponent of the number in that digit. Therefore, the steps can be shown in the following table.

Exponent (n)Digit (d)d x 9nCumulative sum
011 x 901

From the table above, it can be written as a conversion formula as:
(1 × 90)

Then calculate the sum of all the cumulative sums we get:
1 = 1

Step 2: convert from base 10 to base 21

Conversion from base 10 to base 21 can be done by dividing the number by 21 until the quotient is zero. The steps can be shown in the following table.

#Number divides 21QuotientRemaining
11 divides 2101

When the division is complete, connect all the remainders of the division. Starting from the bottom of the table we get 1.

Therefore, 1 in base 9 can to converted to base 21 as 1.

Base 9 to base 21 conversions table

Here is a conversions table comparing the relationship between base 9 and base 21 by using 1 - 100 in base 10 as starting numbers.

Base 9Base 21
11
22
33
44
55
66
77
88
109
11A
12B
13C
14D
15E
16F
17G
18H
20I
21J
22K
2310
2411
2512
2613
2714
2815
3016
3117
3218
3319
341A
351B
361C
371D
381E
401F
411G
421H
431I
441J
451K
4620
4721
4822
5023
5124
5225
5326
5427
5528
5629
572A
582B
602C
612D
622E
632F
642G
652H
662I
672J
682K
7030
7131
7232
7333
7434
7535
7636
7737
7838
8039
813A
823B
833C
843D
853E
863F
873G
883H
1003I
1013J
1023K
10340
10441
10542
10643
10744
10845
11046
11147
11248
11349
1144A
1154B
1164C
1174D
1184E
1204F
1214G

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