Privacy Policy
Last updated: June 13, 2026
1. Overview
Health Calculators ("the Service") takes the protection of your personal information very seriously. This Privacy Policy explains what information the Service collects and how it is used.
2. How your inputs are handled
🔒 Important: All information you enter into Health Calculators — such as height, weight, and menstrual cycle — is never sent to a server.
- Every calculation happens 100% inside your browser (your device).
- The values you enter are used only temporarily in browser memory for the calculation.
- Your inputs are never transmitted to or stored on our servers.
- When you close the browser or refresh the page, all of your input data is erased.
3. Information we collect
3.1 Information collected automatically
To improve the Service, we may collect the following anonymous analytics data:
- Pages visited and calculators used
- Browser type and version
- Device type (desktop / mobile)
- Approximate location
3.2 Information we do not collect
- Health information you enter into the calculators, such as height, weight, age, or menstrual cycle
- Calculation result values
- Personally identifiable information (name, email, etc.) — unless you voluntarily provide it through a contact request
4. Cookies and tracking technologies
The Service may use cookies for the following purposes:
- Website analytics (Google Analytics)
- Displaying ads (Google AdSense)
You can disable cookies in your browser settings.
5. Advertising
The Service may display ads through Google AdSense. Google may use cookies to show ads based on your interests. For more details, please see the Google Advertising Policies.
6. Third-party services
The Service may use the following third-party services:
- Google Analytics — website analytics
- Google AdSense — advertising service
- Cloudflare — website hosting and CDN
7. Children's privacy
The Service does not intentionally collect personal information from children under the age of 14.
8. Changes to this Privacy Policy
This Privacy Policy may be revised as needed. Any changes will be posted on this page, and significant changes will be announced on the website.
9. Contact
If you have questions or concerns about this Privacy Policy, please reach out through our contact page.