Privacy Policy

This site does not ask for or store personal information. Numbers entered into a calculator are processed entirely in your browser: they are never sent to a server, saved, or shared. The only data this site collects is the aggregate usage data described below under Analytics.

Analytics

This site uses Google Analytics to understand which pages are useful and which calculators people actually use. Google Analytics collects information such as which pages you visit, roughly how long you stay, an approximate location derived from your IP address (typically city or region level, not an exact address), and general device and browser information. This data is tied to a randomly generated identifier stored in your browser, not to your name, email address, or anything else that identifies you personally, unless you separately have a Google account signed in and have enabled ad personalization in that account's own settings, which this site does not control.

Google acts as a data processor for this analytics data and may combine it with other information it holds in accordance with its own privacy policy, available at policies.google.com/privacy. You can opt out of Google Analytics tracking across all websites using the Google Analytics Opt-out Browser Add-on, or by using a browser extension or content blocker that blocks third-party analytics scripts. Browser settings like "Do Not Track" or Global Privacy Control are respected where the underlying browser or extension enforces them at the network level.

Cookies

Google Analytics sets first-party cookies in your browser to distinguish one visit from another. No advertising or cross-site tracking cookies are set by this site directly. Beyond analytics, the site may use strictly necessary cookies for basic functionality (such as remembering a language preference), and none of these identify you personally.

Data Retention

Aggregate analytics data is retained according to Google Analytics' standard retention settings and is used only to view traffic and usage trends in aggregate. No individual visitor profiles are built or reviewed by this site's operators.

Children's Privacy

This site is a general-purpose reference and calculator tool not directed at children, and it does not knowingly collect personal information from anyone, including children under 13.

Third-Party Links

External links may be present in supporting content, for example a link to a related calculator or reference source. This site is not responsible for the privacy practices, content, or availability of third-party sites reached through an outbound link.

Changes to This Policy

If this policy changes in a way that meaningfully affects what is collected or how it is used, the update will be reflected on this page. Checking back periodically is the best way to stay informed.

Contact

For privacy questions, use the contact page. To learn more about the site itself, visit the about page or head back to the percentage decrease calculator.