Last updated: October 26, 2026.
Using the website
These terms describe use of the Percentage Calculator website and its educational tools. Use the website lawfully and avoid activity that interferes with its availability, attempts unauthorized access or submits abusive material through the contact form.
Educational purpose
The tools provide arithmetic results and explanations. They do not provide personalized financial, legal, tax or academic advice. You are responsible for checking whether a formula and its assumptions fit your situation.
Accuracy and availability
We aim to provide correct examples and useful software, but do not promise that every result is error-free, uninterrupted or suitable for a particular purpose. Browser arithmetic, rounding, unsupported inputs and changes to external rules can affect how a result should be used. Verify important results independently.
Content and rights
Original website text and design belong to their respective rights holders. You may link to our pages and use calculations in your own work. Do not misrepresent this site’s content as your own or imply an endorsement. Any third-party names and marks remain with their owners.
External resources and changes
External links are provided for context and are not a guarantee of their contents. We may update tools, content and these terms. If you have a question or identify a mistake, contact the administrator through the Contact page.