Last updated October 20, 2026
By using Easy Stat Calc (easystatcalc.com) you agree to these terms. If you do not agree, please do not use the site.
Free to use
The calculators and pages are free for personal, educational and work use. You do not need an account.
For learning and general information
Easy Stat Calc is an educational tool. Results and explanations are for learning, checking your work and general information. They are not professional, medical, financial, legal or engineering advice. Check important results independently before relying on them for any decision with serious consequences.
Accuracy, and no warranty
We test every calculator carefully (see Methodology), but the site is provided “as is”, without any warranty, and errors can still happen. If you find one, please tell us. To the extent the law allows, Easy Stat Calc is not liable for any loss or damage that comes from using the site or relying on its results.
Fair use of the site
Please use the site normally. Do not try to overload it, break it or collect its content by automated means at a volume that affects other visitors.
Content, tables and downloads
The text, calculators, code and design of this site belong to Easy Stat Calc. You may link to any page and quote short parts with a link back. Tables and downloadable files are free for personal and classroom use; if you share them, keep the Easy Stat Calc credit. Please do not copy whole pages or calculators to another website, and do not sell our content.
Other companies’ names
Excel, TI-83, TI-84, Python, R, NumPy, SciPy and other names on this site belong to their owners. They are used only to describe which method a result matches, and Easy Stat Calc is not affiliated with or endorsed by them.
Links to other sites
Some pages link to other websites. We are not responsible for their content or policies.
Changes
We may update these terms. The date at the top shows the latest version. Using the site after a change means you accept the updated terms.
Contact
Questions about these terms: contact@easystatcalc.com.