# Sum of Arithmetic Sequence Calculator

'Cuemath's Sum of Arithmetic Sequence Calculator' is an online tool that helps to calculate the sum of the arithmetic sequence.

## What is the Sum of Arithmetic Sequence Calculator?

Cuemath's online Sum of Arithmetic Sequence calculator helps you to calculate the sum of arithmetic sequence in a few seconds.

NOTE: Please enter the values up to four digits only.

## How to Use Sum of Arithmetic Sequence Calculator?

Please follow the steps below to find the sum of the arithmetic sequence:

**Step 1:**Enter the first term(a), the common difference(d), and the number of terms(n) in the given input box.**Step 2:**Click on the**"Calculate"**button to find the sum of the arithmetic sequence.**Step 3:**Click on the**"Reset"**button to clear the fields and find the sum of the arithmetic sequence for different values.

## How to Find Sum of Arithmetic Sequence?

An arithmetic sequence is defined as a series of numbers, in which each term (number) is obtained by adding a fixed number to its preceding term.

**Sum of arithmetic terms = n/2[2a + (n - 1)d],** where 'a' is the first term, 'd' is the common difference between two numbers, and 'n' is the number of terms.

**Solved Example:**

Find the sum of the arithmetic sequence 1,3,5,7,9,11,13,15

**Solution:**

Given: a = 1, d = 2, n = 8

Sum of arithmetic terms = n/2[2a + (n - 1)d]

= 8/2[2(1) + (8 - 1)2]

= 4[2 + 14]

= 64

Similarly, you can try the calculator to find the sum of the arithmetic sequence for the following:

a) 2,4,6,8,10,12,14,15 b) 5,15,25,35,45,55,65