1. Information We Collect
Information You Enter in Calculators
All calculations performed on CalcHub are processed entirely in your web browser. We do not collect, transmit, or store any values you enter into our calculators. Your health data, financial figures, and personal measurements stay on your device.
Automatically Collected Information
When you visit CalcHub, our servers and third-party services may automatically collect:
- IP address (anonymized for analytics)
- Browser type and version
- Operating system
- Pages visited and time spent
- Referring website
- Device type (mobile/desktop)
2. How We Use Information
We use automatically collected information to:
- Analyze website traffic and improve our tools
- Understand which calculators are most useful
- Fix bugs and improve performance
- Comply with legal obligations
3. Google AdSense
CalcHub displays advertisements through Google AdSense. Google may use cookies and other tracking technologies to serve ads based on your interests. Google's use of advertising cookies enables it and its partners to serve ads based on your visit to our site and/or other sites on the Internet.
You may opt out of personalized advertising by visiting Google Ad Settings. You can also opt out of third-party vendor use of cookies for personalized advertising by visiting aboutads.info.
4. Google Analytics
We use Google Analytics to understand how visitors use our website. Google Analytics collects anonymous usage data. You can opt out by installing the Google Analytics Opt-out Browser Add-on.
5. Cookies
CalcHub uses the following types of cookies:
- Essential cookies: Required for basic website functionality (e.g., cookie consent preference)
- Analytics cookies: Google Analytics cookies for traffic analysis
- Advertising cookies: Google AdSense cookies for ad serving and personalization
You can control cookies through your browser settings. Disabling cookies may affect some website functionality.
6. Third-Party Services
We use the following third-party services:
- Google AdSense: Advertising — Google Privacy Policy
- Google Analytics: Analytics — Google Privacy Policy
- Google Fonts: Typography — fonts loaded from Google servers
7. Children's Privacy
CalcHub does not knowingly collect personal information from children under 13 years of age. If you believe we have inadvertently collected information from a child, please contact us immediately.
8. Data Security
CalcHub uses HTTPS encryption for all data transmission. Since calculator inputs are processed locally in your browser and not transmitted to our servers, your personal data entered in calculators is inherently protected.
9. Your Rights
Depending on your location, you may have rights regarding your personal data under GDPR, CCPA, or other applicable laws, including the right to access, correct, delete, or restrict processing of your data. Contact us at privacy@calchub.net to exercise these rights.
10. Changes to This Policy
We may update this Privacy Policy periodically. We will notify users of significant changes by updating the "Last updated" date at the top of this page. Continued use of CalcHub after changes constitutes acceptance of the updated policy.
11. Contact Us
For privacy-related questions or concerns, contact us at:
Email: privacy@calchub.net
Website: calchub.net/pages/contact/