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Statistics · Descriptive Statistics

Descriptive Statistics Calculator

Summarize a data set: mean, range, quartiles, and more.

Descriptive Statistics Calculator

Enter your numbers separated by commas or spaces, then select Calculate.

Separate numbers with commas or spaces.

What's calculated

Count, sum, mean, median, mode, minimum, maximum, range, quartiles (Q1/Q3), interquartile range, variance, and standard deviation — the standard summary statistics taught in introductory statistics. Quartiles use the common "exclusive" method: split the sorted data into lower and upper halves around the median (excluding the median itself when the count is odd), then Q1 and Q3 are the medians of those halves.

Examples

For 1, 2, 3, 4, 5, 6, 7, 8, 9: the median is 5, Q1 is 2.5, Q3 is 7.5, and the interquartile range is 5.

About this calculation

These are the standard descriptive statistics formulas from introductory statistics. Variance and standard deviation here use the population formula (divide by n) — for a sample calculation (divide by n − 1), use the dedicated Standard Deviation Calculator.

Related tools

More calculators are on the way — browse everything planned on the Home page.

Frequently asked questions

Why does the headline result show the mean?

The mean is the most commonly requested single statistic; every other computed value — count, median, mode, quartiles, range, variance, and standard deviation — is listed below it.

What if there's no mode?

If every number in your data set occurs exactly once, there is no mode — the calculator shows "none" rather than an arbitrary value.