Privacy Policy

This site runs calculations locally in your browser. It does not require an account and does not collect the numbers you type.

Information we collect

We do not operate a backend, a database, a contact form or a user login. Values entered into a calculator are processed by JavaScript in your browser and are not transmitted to us. We do not ask for names, email addresses, Social Security numbers or financial account details.

Third-party advertising and cookies

This site may display advertising served by Google AdSense or another third-party ad network. Google and its partners may use cookies, including the DART cookie, to serve ads based on visits to this and other websites. They may also use device identifiers and approximate location derived from IP addresses. We do not control these cookies and we do not receive the underlying personal data.

You can opt out of personalised advertising at Google Ads Settings, or review the network's policy at policies.google.com/technologies/ads. Browser settings and common extension-based blockers can also limit or disable cookies.

Analytics and hosting

Our hosting provider may record standard server log data such as IP address, user agent, requested path and timestamp for security and delivery purposes. Aggregate traffic measurement may be used to understand which calculators are visited. We do not combine this with any information you enter into a calculator.

Children

This site is a general reference tool and is not directed at children under 13. We do not knowingly collect personal information from children.

Changes and contact

This policy may be updated as advertising or analytics providers change. The current version is dated below. Questions can be sent to the contact address listed on the data sources page once the site is live.

Effective date: 2026-11-14