Base 8 to base 21 conversion

Base 8 to base 21 converter lets you convert number system between base 8 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 8 to base 21?

1
1 base 8 = 1 base 21

Calculation steps

To convert 1 in base 8 to base 21, take the following steps.

  1. Convert 1 from base 8 to base 10.
  2. Convert result of the previous step from base 10 to base 21.

Step 1: convert 1 from base 8 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 8nCumulative sum
011 x 801

From the table above, it can be written as a conversion formula as:
(1 × 80)

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 8 can to converted to base 21 as 1.

Base 8 to base 21 conversions table

Here is a conversions table comparing the relationship between base 8 and base 21 by using 1 - 100 in base 10 as starting numbers.

Base 8Base 21
11
22
33
44
55
66
77
108
119
12A
13B
14C
15D
16E
17F
20G
21H
22I
23J
24K
2510
2611
2712
3013
3114
3215
3316
3417
3518
3619
371A
401B
411C
421D
431E
441F
451G
461H
471I
501J
511K
5220
5321
5422
5523
5624
5725
6026
6127
6228
6329
642A
652B
662C
672D
702E
712F
722G
732H
742I
752J
762K
7730
10031
10132
10233
10334
10435
10536
10637
10738
11039
1113A
1123B
1133C
1143D
1153E
1163F
1173G
1203H
1213I
1223J
1233K
12440
12541
12642
12743
13044
13145
13246
13347
13448
13549
1364A
1374B
1404C
1414D
1424E
1434F
1444G

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