Average Calculator

Calculate the average of multiple numbers and see exactly how the result was obtained.

Calculate an average

Enter two or more numbers. Add more rows when you need to calculate the average of a larger set.

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Average
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How to calculate an average

The arithmetic mean, commonly called the average, is calculated by adding all the values together and dividing the total by the number of values.

Average = Sum of all values ÷ Number of values

Step-by-step calculation

1
Add all the numbers Calculate the total of every value entered.
2
Count the values Determine how many numbers are included in the calculation.
3
Divide the total Divide the sum by the number of values to obtain the average.

Example

Suppose you want to find the average of 10, 20, 30, and 40.

Values 10, 20, 30, 40
Sum 10 + 20 + 30 + 40 = 100
Number of values 4
Formula 100 ÷ 4
Average 25

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Note: This calculator calculates the arithmetic mean based on the values you enter. Make sure the values are appropriate for the calculation you are performing.