Numbers in Different Bases - Decoder

We give you a number and its base. You give us its decimal equivalent.

For bases higher than 10, letters are used to represent digits greater than or equal to 10: the letter "a" means 10, "b" means 11, "c" means 12, and so forth

Answers must correspond to the highlighted box

This quiz changes every time you play!

Opposite quiz here

Quiz by

Rate:

Last updated: January 14, 2024

You have not attempted this quiz yet.

More quiz info >>

First submitted	January 14, 2024
Times taken	0
Report this quiz	Report

Quiz and answer stats >>

Friends stats >>

8:00

Enter answer here

/ 20 guessed

The quiz is paused. You have remaining.

Scoring
You scored / = %

      This beats or equals
      % of test takers
      also scored 100%
      
The average score is 

        Your high score is
        
      
Your fastest time is 
more stats >>
friends stats >>

Keep scrolling down for answers and more stats ...

Number	Base	Decimal
i8	20	368
13030	4	460
1105	7	397
130	7	70
111000011	2	451
10111	3	94
61	19	115
100110010	2	306
5a	15	85
1242	6	314
9e	16	158
3432	5	492
31	18	55
622	8	402
216	7	111
2031	4	141
185	16	389
263	13	419
bd	19	222
30b	12	443