Privacy Policy

We do not require an account or personal information to use our calculators. All calculations run locally in your browser — inputs never leave your device.

However, certain technologies on the site automatically collect limited technical information:

• Usage data: Pages visited, time on site, browser type, device type, and referral source — collected anonymously.
• Cookies: Small files stored on your device used to remember your preferences and serve advertising (see section 3).
• Log data: Your IP address and browser may be logged by our hosting provider (Vercel) for security and performance purposes.

We use Google AdSense to display advertisements on this site. Google AdSense uses cookies — including the DoubleClick cookie — to serve ads based on your previous visits to this site and other sites on the internet.

You may opt out of personalised advertising at any time by visiting Google Ads Settings or aboutads.info.

For more on how Google uses data when you use partner sites: Google's partner data policy.

• To operate and improve the site and its calculators.
• To display advertisements via Google AdSense.
• To analyse anonymous usage patterns and improve user experience.
• To remember your preferences between visits.

We do not sell, rent, or trade your personal information to third parties.

This site uses the following third-party services, each governed by their own privacy policy:

• Google AdSense / Google Advertising
• Google Analytics
• Vercel (hosting)

• Opt out of personalised ads: Google Ads Settings.
• Manage cookies: You can block or delete cookies in your browser settings. This may affect some site functionality.
• Do Not Track: We honour browser Do Not Track signals where technically feasible.
• GDPR (EU residents): You have the right to access, rectify, erase, or restrict processing of your data. Contact us to exercise these rights.
• CCPA (California residents): You have the right to know what data is collected and request deletion.

Preference cookies persist until you clear your browser data. Advertising and analytics cookies follow Google's retention schedules — typically 13 months for analytics, session-based for most advertising cookies.

This site is not directed at children under 13. We do not knowingly collect personal information from children. If you believe a child has submitted data, contact us and we will delete it promptly.

We may update this policy periodically. The "Last updated" date at the top reflects the most recent revision. Continued use of the site after changes constitutes acceptance.

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