Privacy Policy
Last updated: 2026-05-13
Calctube ("we", "us", "our") respects your privacy. This Privacy Policy explains what information we collect, how we use it, and your rights. By using calctube.com you agree to the practices described here.
What we collect
- Usage analytics: via Google Analytics 4 and Cloudflare Web Analytics — anonymized IP, browser, device, pages visited.
- Search Console data: aggregated, anonymous keyword and page-performance data from Google and Bing.
- Calculator inputs: processed entirely in your browser. We do NOT send the values you enter into our calculators to any server.
- Cookies: see the Cookie Policy for details.
What we do NOT collect
- Personal identifiers (name, address, phone, SSN, etc.) — unless you email us voluntarily.
- Financial account numbers, credit card numbers, or banking details.
- Medical records or health diagnoses.
- The specific values you enter into our calculators.
Advertising
We display advertising via Google AdSense and similar networks. Ad partners may use cookies to serve relevant ads based on your prior browsing. You can opt out via Google Ads Settings and NAI opt-out.
Affiliate disclosure
Some links on this site are affiliate links — if you click through and make a purchase, we may earn a commission at no extra cost to you. Affiliate relationships never influence our calculator math or the answers we display.
Your rights
Under GDPR (EU), CCPA (California), and similar laws, you have the right to:
- Request a copy of any personal data we hold about you.
- Request deletion of that data.
- Opt out of analytics and advertising cookies.
Send requests to privacy@calctube.com. We respond within 30 days.
Children
Calctube is not directed at children under 13. We do not knowingly collect data from minors. If you believe a child has provided us data, contact us and we will delete it.
Changes to this policy
We may update this Privacy Policy. The "Last updated" date above reflects the most recent revision. Material changes will be announced on the homepage.
Contact
Privacy questions: privacy@calctube.com