Arithmetic sequence calculator

The following arithmetic sequence calculator will help you determine the nth term and the sum of the first n terms of an arithmetic sequence.

First term of the sequence:     

Common sum or difference:    

                      Enter n:                 

                                                            an   Sn         



Guidelines to use the calculator

If you select an, n is the nth term of the sequence

If you select Sn, n is the first n term of the sequence

For more information on how to find the common difference or sum, see this lesson arithmetic sequence

Tough algebra word problems

100 Tough Algebra Word Problems.

If you can solve these problems with no help, you must be a genius!

Math quizzes