Last updated: September 28, 2026.
What Information We Collect
This site does not require an account or ask you to submit personal calculations to a server, calculations run directly in your browser. Like most websites, we use standard analytics and advertising cookies to understand traffic and to show ads through Google AdSense.
Cookies and Advertising
Google AdSense and similar third-party vendors use cookies to serve ads based on your prior visits to this and other websites. You can opt out of personalized advertising by visiting Google’s Ads Settings page. We do not control third-party cookies directly and recommend reviewing Google’s own privacy policy for details on how it handles data.
Children’s Privacy
This site is intended for general audiences including students, but it does not knowingly collect personal information from children. If you believe a child has provided personal information here, contact us and it will be removed.
Your Rights
Depending on where you live, you may have rights to access, correct, or delete personal data under laws such as the GDPR (European Union), the LGPD (Brazil), or POPIA (South Africa). Contact us using the details on our contact page to make a request.
Changes to This Policy
This policy may be updated as the site changes. The date at the top of this page reflects the most recent update.