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statistics

Descriptive Statistics Calculator

Paste a list of numbers to get the count, sum, mean, median, mode, range, variance and standard deviation.

  • 8Count
  • 40Sum
  • 5Mean
  • 4.5Median
  • 4Mode
  • 7Range
  • 2Minimum
  • 9Maximum
  • 2.13809Std dev (sample)
  • 4.57143Variance (sample)
  • 2Std dev (population)
  • 4Variance (population)

How to use it

  1. Enter your numbers Separate them with commas, spaces or new lines.
  2. Read the statistics All measures update instantly as you type.

Examples

2,4,4,4,5,5,7,9 mean 5, median 4.5
Population std dev 2

About this tool

Descriptive statistics summarise a set of numbers: where the centre is (mean, median, mode), how spread out the values are (range, variance, standard deviation), and the basics like count, sum, minimum and maximum.

This calculator reports both sample and population versions of variance and standard deviation, so you can pick the right one for your data. Paste your numbers in any common format and the results update instantly, all in your browser.

Frequently asked questions

What's the difference between sample and population statistics?

Sample variance and standard deviation divide by n − 1 (use this for a sample of a larger group); population versions divide by n (use this when you have the whole group).

What is the mode if nothing repeats?

If no value repeats, there is no mode. If several share the highest frequency, all of them are shown.

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Percentage Calculator Three percentage calculators in one — find a percentage of a number, a ratio as a percentage, and percentage change. T-Test Calculator Enter your data to compute a t-test — one-sample, independent two-sample (Welch) or paired — with the t value, df and p-value. Percentile Calculator Find the value at any percentile in your data, with quartiles and the interquartile range. Z-Score Calculator Convert a value into a z-score and find its percentile and the probability of scoring above it. Permutations & Combinations Calculator Enter n and r to get the number of permutations, combinations and the factorial of n. Weighted Average Calculator Calculate a weighted average from values and their weights, with the simple average for comparison.

Updated June 12, 2026