Tool guide
How to use the Average Calculator
The Average Calculator finds the arithmetic mean by adding every entered number and dividing the sum by the number of values. It also reports the median, count, sum, smallest value, and largest value so one unusually high or low number is easier to notice.
What this tool is useful for
- Find a mean for grades, measurements, prices, reports, or repeated observations.
- Compare the mean with the median when values may contain outliers.
- Check the count, total, minimum, and maximum alongside the average.
Practical example
For 10, 20, 30, 40, and 50, the sum is 150 and the count is 5, so the mean is 30. The median is also 30 because it is the middle value after sorting.
Helpful tips
- Separate values with commas or line breaks.
- An arithmetic mean can be distorted by an extreme value, so check the median as well.
- Do not average percentages with different underlying sample sizes unless a simple mean is genuinely appropriate.
Related tools and next steps
Calculators, Finance Tools, Converters, All Tools
Frequently asked questions
What formula calculates the mean?
Add all values and divide the sum by the number of values.
What is the difference between mean and median?
The mean uses every value, while the median is the middle value after sorting and is often less affected by outliers.
Can I average percentages?
Only when a simple mean is appropriate. Percentages based on different sample sizes usually require a weighted calculation.
https://wowwebtools.com/calculators/average-calculator