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Privacy Policy

CalzHub — Free Online Calculators India

Privacy Policy

Last updated: June 2, 2026

Welcome to CalzHub ("we", "our", or "us"). This Privacy Policy explains how we collect, use, and protect your information when you visit calzhub.com.

1. Information We Collect

We do not require you to create an account or provide any personal information to use our calculators. However, we automatically collect the following data:

  • Usage data — pages visited, calculators used, time spent on site

  • Device data — browser type, operating system, screen size

  • IP address — used to determine approximate country/city for analytics

  • Referrer URL — the page that linked you to CalzHub

2. How We Use Your Information

We use collected data solely to:

  • Understand which calculators are most useful to our visitors

  • Improve the performance and accuracy of our tools

  • Display relevant advertisements via Google AdSense

  • Monitor site health and prevent abuse

We do not sell, rent, or share your personal data with third parties for marketing purposes.

3. Cookies

CalzHub uses cookies for the following purposes:

  • Session cookies — to maintain your anonymous session during a visit

  • Google AdSense cookies — to serve relevant ads based on your browsing behaviour

  • Google Analytics cookies — to measure traffic and usage patterns

You can disable cookies in your browser settings at any time. Note that disabling cookies may affect the display of advertisements.

4. Google AdSense & Analytics

We use Google AdSense to display advertisements. Google may use cookies to serve ads based on your prior visits to CalzHub or other websites. You can opt out of personalised advertising by visiting Google Ads Settings.

We use Google Analytics 4 to understand how visitors interact with our site. Google Analytics collects anonymised usage data. For more information, see Google's Privacy Policy.

5. Third-Party Links

Our site may contain links to external websites. We are not responsible for the privacy practices or content of those sites. We encourage you to review the privacy policy of any site you visit.

6. Data Retention

Anonymous analytics data is retained for up to 12 months and then automatically deleted. We do not store any personally identifiable information beyond IP addresses used for geo-lookup, which are not linked to any user profile.

7. Children's Privacy

CalzHub is not directed at children under the age of 13. We do not knowingly collect personal information from children. If you believe a child has provided us with personal data, please contact us and we will delete it promptly.

8. Your Rights

Depending on your location, you may have the right to:

  • Access the data we hold about you

  • Request deletion of your data

  • Opt out of analytics and advertising tracking

To exercise any of these rights, please contact us at the email below.

9. Changes to This Policy

We may update this Privacy Policy from time to time. Changes will be posted on this page with an updated date. Continued use of CalzHub after changes constitutes your acceptance of the new policy.

10. Contact Us

If you have any questions about this Privacy Policy, please contact us: