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Statistics Calculator

Mean, median, mode, standard deviation, quartiles, outliers, a histogram and linear regression from numbers or a CSV column.

Free, no uploads, no sign-up. Runs 100% in your browser.

How Statistics Calculator works

Numbers are read from anything you paste (commas, spaces or new lines), or from a column of a CSV. Quartiles use linear interpolation, the same as spreadsheets. Outliers are values more than 1.5 times the IQR outside the box. In table mode you can pick a second column for a least-squares line with r and R squared.

Input: Text, CSV, TSV. Output: Text.

How to use Statistics Calculator

1. Open Statistics Calculator and paste your text.
2. Choose an operation or option.
3. Review the live result.
4. Copy it or download it.

Tips

• Text never leaves your device, so it is safe for drafts and private notes.

Statistics Calculator FAQ

Are my files uploaded?

No. This tool runs entirely in your browser tab. Files are read from your disk into memory and the result is generated locally.

Is it free? Are there limits or watermarks?

Free and open source (MIT). There are no file-size caps, daily quotas, accounts or watermarks.

Does it work offline?

Yes, once the page (and any engine it needs) has loaded, it keeps working without a connection thanks to the service worker cache.

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