About the Average Calculator
Paste in a list of numbers to get the mean (average), median (middle value), mode (most frequent), sum, count, and range all at once — the core summary statistics for any small data set.
How it’s calculated
Mean = sum ÷ count. Median = the middle value when sorted. Mode = the most frequently occurring value. Range = maximum − minimum.
Example calculation
For 12, 15, 20, 20, 33: the mean is 20, the median is 20, and the mode is 20.
Frequently asked questions
What's the difference between mean and median?
The mean averages all values and is pulled by outliers; the median is the middle value and resists them. For skewed data, the median often describes the 'typical' value better.
Can there be no mode?
Yes — if every value appears once, there's no mode. There can also be several modes if multiple values tie for most frequent.
This tool provides estimates for general informational and educational purposes only. Results are based on the values you enter and standard formulas, and may not reflect your specific circumstances.