Average Calculator

Calculate the average and arithmetic mean from a set of numbers. Get the sum, count and mean instantly.

Separate values with commas, spaces, or line breaks.

Average Formula

Arithmetic Mean = Sum of all values ÷ Number of values Mean = (x₁ + x₂ + x₃ + ... + xₙ) ÷ n

The arithmetic mean, commonly called the average, is found by adding every value in the data set and dividing the total by the number of values.

How to Calculate an Average

1

Enter the Numbers

Enter the values you want to average, separated by commas, spaces or line breaks.

2

Add the Values

The calculator adds all valid numbers to find their total sum.

3

Divide by the Count

The sum is divided by the number of values to produce the arithmetic mean.

Understanding Averages

Sum

The total obtained by adding all values in the data set.

Count

The number of values included in the calculation.

Mean

The sum divided by the number of values, representing the arithmetic average.

Frequently Asked Questions

Add all the numbers together and divide the total by the number of values. This gives the arithmetic mean.
The arithmetic mean is the sum of all values divided by the number of values in the set.
Yes. An average can be a whole number, decimal or fraction depending on the values in the data set.
Yes. In an arithmetic mean, every value contributes to the total used to calculate the average. Very large or small values can therefore affect the result significantly.

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