CalcSuite Pro

Statistics Calculator

Calculate descriptive statistics for a data set: mean, median, mode, standard deviation, variance, quartiles, IQR, and more.

Quick Answer

A statistics calculator summarizes a data set by calculating mean, median, mode, range, variance, standard deviation, and quartiles.

Separate with commas, spaces, or new lines. Paste from a spreadsheet column.

Descriptive Statistics Formulas

Mean = Σx / n Variance = Σ(x − mean)² / n (population) Std Dev = √Variance Median = middle value (sorted) IQR = Q3 − Q1 Range = Max − Min

Population variance and standard deviation are used (divides by n, not n-1).

How to Use This Calculator

  1. 1

    Enter your numbers in the text area, separated by commas, spaces, or new lines.

  2. 2

    You can also paste data from a spreadsheet column.

  3. 3

    Click Calculate to see all descriptive statistics.

  4. 4

    Review mean, median, standard deviation, quartiles, and more.

Frequently Asked Questions

The mean (average) is the sum of all values divided by the count. It is sensitive to outliers — a single very large or small value can shift the mean significantly.

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Last updated: June 2026