Created By : Abhinandan Kumar
Reviewed By : Phani Ponnapalli
Last Updated : Mar 24, 2023


With the help of our free online Sequence Calculator, you can easily and effortlessly find the nth term, common difference, and the sum of n terms of a Sequence Calculator series. Enter the input sequence in the calculator fields and tap on the calculate button to obtain the output in a fraction of second. 

nth term of Arithmetic Sequence Calculator

First term [a]:
common difference[d]:
Total terms[n]:

nth term of Geometric Sequence Calculator

First term [a]:
common ratio[r]:
Total terms[n]:

nth term of Harmonic Sequence Calculator

First term [a]:
common difference[d]:
Total terms[n]:

Examples Of Sequence Calculator

1. What is the 5th term of the arithmetic sequence(a=4.99, d=1)?

nth term of arithmetic sequence formula:-

an = a + (n-1) *d
where:

  • an is the nth term
  • a is first term
  • n is total number of terms
  • d is common difference

Input values are:-

a = 4.99

n = 5

d = 1

Put values into formula

a5 =a + (n-1) *d

a5 = 4.99 + (5-1) *1

a5 = 8.99

2. What Is the Sum of the first 5 terms of the geometric sequence(a=56, r=0.9995)?

The sum of n terms of geometric sequence formula:-

Sn = a* rn-1 / r-1
where:

  • sn is the sum of n terms
  • a is first term
  • n is total number of terms
  • r is common ratio

Input values are:-

a = 56

n = 5

r = 0.9995

Put values into formula the answer is :

S5 = 279.72014

FAQs On Free Online Sequence Calculator

1. How do you find the next terms of a sequence?

Subtract the first term from the second term and the second term from the third term to find out the common difference for the sequence. To find the next term for the sequence, add the common difference to the last given term.  

2. What kind of sequence is 2 4 8?

The given kind of sequence 2 4 8 is a Geometric sequence. 

3. What kind of sequence is 2 5 8?

The sequence of 2 5 8 is an arithmetic sequence because there is a common difference between each term.