Tools / Productivity
Local · Private · Free

Statistics Calculator

Paste a column of numbers and get the full summary: mean, median, mode, spread and quartiles, with a live histogram and box-plot, all on your device.

0 values

Calculated locally, your data never leaves the browser.

Summary

Enter at least one number to see the statistics.

Population and sample, done right

Variance and standard deviation are shown for both the whole population (÷N) and a sample (÷N−1, Bessel's correction), so you pick the one that matches your data. Quartiles use linear interpolation, the box-plot whiskers follow the 1.5×IQR rule and flag outliers, and the histogram auto-bins with a sensible default, everything computed in your browser, free forever.

About Statistics Calculator

Statistics Calculator is a free, private tool that runs entirely in your web browser. Paste any column of numbers and instantly get mean, median, mode, standard deviation, variance, and quartiles, plus a live histogram and box-plot. Because everything is computed on your device, your data is never uploaded to a server. There is no sign-up or installation required, and it keeps working offline. Like every free tool by Digital Heroes, it is 100% free with no limits.

What you can do

How to use Statistics Calculator

  1. Open Statistics Calculator: it runs entirely in your browser, with no signup.
  2. Paste or type your numbers into the input box. Any separator works: commas, spaces, tabs or newlines.
  3. Results appear instantly. Use the histogram bin slider to adjust the chart, or toggle Auto for a smart default.
  4. Click Copy results to export the full summary as plain text.

Frequently asked questions

Is Statistics Calculator free?

Yes. Statistics Calculator is completely free for everyone. No sign-up, no account and no usage limits.

Is it private? Are my files uploaded anywhere?

No. Statistics Calculator runs entirely in your browser on your own device, so your data never leaves your computer and nothing is uploaded to a server.

Does it work offline?

Yes. Once the page has loaded it keeps working offline, and you can install it as an app from your browser.

Do I need to install anything or create an account?

No. Just open the page and start using it. No installation or account required.

What does Statistics Calculator do?

Paste a list of numbers to get mean, median, mode, standard deviation, quartiles, a histogram and a box-plot, all computed locally on your device.

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