Free Average Calculator
Mean of a list of numbers, plus sum and count.
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Result
Average (mean)
18.3333
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Short answer
Mean of a list of numbers, plus sum and count.
What is the Average Calculator?
Mean of a list of numbers, plus sum and count.
How does the Average Calculator work?
Enter the inputs above and read the result.
Formula
Variables
ΣxSum of all valuesnCount of values
Explanation
The arithmetic mean balances the data; outliers pull it strongly.
Examples
Applications
Advantages
Limitations
Common mistakes
Tips
Related concepts
The Average Calculator sits inside the Math Calculators hub, in the statistics & probability cluster. Describing data and quantifying uncertainty. Understanding the terms below makes the output easier to interpret and easier to compare against neighbouring measures.
Practical use cases and industry applications
Understanding Average
Mean of a list of numbers, plus sum and count. Within math calculators, average belongs to the statistics & probability cluster, where it shares terminology and assumptions with closely related tools.
Learning how average is calculated
The arithmetic mean balances the data; outliers pull it strongly. Working through the variables one at a time — Σx, n — makes the result reproducible by hand and easier to sanity-check.
Using average to make a decision
Because outputs depend on the assumptions you enter, run more than one scenario before committing to a figure.
How average compares with related measures
distribution, dispersion, significance, sample all describe adjacent aspects of statistics & probability. Comparing this calculator's output against those measures — using the related tools listed on this page — prevents a single metric from being read in isolation.
Frequently asked questions
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