Average Calculator
Find the mean, sum and count of any list of numbers.
Enter values
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Step by step
The formula
mean = (sum of values) / (count of values)
The arithmetic mean balances a set of numbers: add everything, then share it out equally. Because every value pulls on the result, a single outlier can drag the mean well away from what is typical — which is why the median is often the fairer summary for skewed data like incomes.
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Example calculations
Common questions this calculator answers — select one to load its values.
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Frequently asked questions
What is the mean?+
The mean (average) is the sum of all values divided by how many values there are.
All calculations run locally in your browser. Nothing you type is sent to a server.