Arithmetic Sequence Calculator

Calculate the nth term of an arithmetic sequence

Enter the first term of the sequence

Enter the common difference

Enter the term number

How it works

Calculate the nth term of an arithmetic sequence


The Formula
an = a1 + (n-1)d
where an is the nth term, a1 is the first term, n is the term number, and d is the common difference

Worked Example
  1. Example: Find the 10th term of an arithmetic sequence

    First term (a1) = 2, common difference (d) = 3, term number (n) = 10


Tips, Assumptions & Limitations
  • The common difference can be positive or negative
FAQ

An arithmetic sequence is a sequence of numbers in which the difference between any two consecutive terms is constant

You can use the formula an = a1 + (n-1)d, where an is the nth term, a1 is the first term, n is the term number, and d is the common difference

Companion article

Arithmetic Sequence Calculator: A Step-by-Step Guide

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