Privacy Policy

Last updated: May 9, 2026

The short version: All calculations run in your browser. We do not store, log, or transmit any financial data you enter into our calculators. Ever.

1. Information We Collect

TheMarginCalculator.com does not collect personally identifiable information from users of our calculators. All calculator inputs (cost, revenue, margin percentages, etc.) are processed entirely within your browser using JavaScript and are never transmitted to our servers.

We may collect non-personal usage data through analytics tools (page views, general location, browser type) to improve the site. This data is anonymized and aggregated.

2. Cookies

We use cookies for Google AdSense advertising. These cookies are set by Google and governed by Google's privacy policy. You can opt out of personalized advertising via Google's Ad Settings.

3. Google AdSense

This site uses Google AdSense to display advertisements. Google may use cookies and web beacons to serve ads based on your prior visits to this and other websites. You may opt out of personalized advertising by visiting Google Ad Settings.

4. Calculator Data Privacy

We want to be explicit: the cost figures, revenue numbers, margin percentages, and any other financial data you enter into any calculator on this site are processed entirely client-side. This data is never logged, stored, transmitted, or shared. We have no technical capability to access your calculator inputs.

5. Third-Party Links

This site may contain links to third-party sites (e.g., NYU Stern, IRS). We are not responsible for the privacy practices of these sites. Review their privacy policies independently.

6. Contact

Questions about this policy: Contact the TheMarginCalculator.com Team.