Privacy Policy & Advertising Disclosure

Last updated: October 15, 2026

1. 100% Client-Side Calculations

Every calculator on CalcNest runs locally inside your web browser using JavaScript. The numbers, health metrics, or project dimensions you enter are never transmitted to our servers or stored in any database.

2. Google AdSense & DART Cookie Disclosure

We use Google AdSense to serve advertisements when you visit CalcNest. Google, as a third-party vendor, uses cookies (including the DoubleClick DART cookie) to serve ads based on your prior visits to this website or other websites on the internet. You may opt out of personalized advertising by visiting Google Ads Settings or www.aboutads.info.

3. Microsoft Advertising (Bing Ads, Microsoft Monetize & UET) Disclosure

We also partner with Microsoft Advertising (including Microsoft Monetize, Universal Event Tracking [UET], and the Yahoo!-Bing contextual ad network) to display relevant advertisements and measure ad performance. Microsoft and its partners may use cookies and web beacons to collect non-personally identifiable information about your visits to this and other websites to provide contextual and interest-based advertisements. To learn more about how Microsoft collects and uses data, please review the Microsoft Privacy Statement and manage your preferences at the Microsoft Ad Settings page.

4. Local Storage & Consent

CalcNest uses browser localStorage solely to remember your cookie banner acknowledgment and display preferences. You can clear your browser storage or disable cookies at any time through your browser settings.

5. Contact Us

If you have any questions about this Privacy Policy, please contact us via our Contact page.