Terms of Use

Last updated: 30 October 2026.

Using this site

Mean Calculator provides free online statistics calculators and educational guides. By using the site you accept these terms. The tools are free for personal, educational and commercial use; no account or payment is required.

Accuracy

We work hard to keep every calculator and worked example correct, and the methods are stated on each page. That said, results are provided for education and general information, without warranty of any kind. Do not rely on this site as the sole basis for decisions with financial, medical, safety or legal consequences — verify important calculations independently. If you find an error, please tell us; corrections are our top priority.

Your data

Calculations happen in your browser. You are responsible for the data you choose to enter anywhere on the web; do not enter information you are not comfortable typing into a browser on any site, including this one.

Content and linking

Text and diagrams on this site may be quoted briefly with attribution and a link. Teachers, tutors and students may link freely to any page. Automated scraping that imposes unreasonable load, and any attempt to disrupt the site, are not permitted.

Liability

To the maximum extent permitted by law, we are not liable for losses arising from use of, or inability to use, this site or its results. Nothing in these terms excludes liability that cannot be excluded by law.

Changes

These terms may be updated; the current version always lives at this URL with its date shown at the top.