Statistics Calculator
Compute mean, median, mode, range, variance, standard deviation, and quartiles from a list of numbers.
Statistics Calculator — Descriptive statistics turn a long list of numbers into a few numbers that describe the whole list at a glance — how big the typical value is, how spread out it is, and where most of the values cluster. This calculator handles the standard set: count, sum, min, max, range, mean, median, mode, variance, standard deviation, and the 25th / 75th percentiles (Q1 / Q3).
Your numbers are processed entirely in your browser. Nothing is uploaded — close the tab and the data is gone.
What is statistics calculator?
Descriptive statistics turn a long list of numbers into a few numbers that describe the whole list at a glance — how big the typical value is, how spread out it is, and where most of the values cluster. This calculator handles the standard set: count, sum, min, max, range, mean, median, mode, variance, standard deviation, and the 25th / 75th percentiles (Q1 / Q3).
Paste any whitespace- or comma-separated list of numbers, hit Compute, and read the results. Useful for grades, experiment data, finance, and quick sanity checks before pushing data into a spreadsheet or a stats package.
How to use it
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Enter your numbers
Paste any list separated by spaces, commas, or new lines.
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Compute
Press the button or just keep typing — results update as you go.
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Read the results
Central tendency (mean / median / mode) and spread (variance / std dev / IQR) are shown side by side.
Examples
Test scores for a class
Ten scores out of 100. Want to know the class average and how spread out the grades are.
78 82 91 65 88 73 95 81 70 84
Result: Mean 80.7 · Median 81.5 · Std dev 8.96 · Range 30
Daily pageviews for a week
Quick sanity check before logging into a real analytics tool.
1240, 980, 1110, 1450, 1320, 1075, 1690
Result: Mean 1266 · Median 1240 · Std dev 226 · Range 710
Frequently asked questions
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