Privacy Policy
At ffmicalculatorreal, your biometric data and health privacy are fundamentally sacred. We engineered our calculator with a zero-telemetry architecture.
1. 100% Client-Side Computation (Zero Biometric Data Collection)
When you enter your weight, height, body fat percentage, biological sex, or US Navy tape measurements (neck, waist, hips) into ffmicalculatorreal:
- These numbers never leave your web browser. All mathematical operations, Kouri et al. normalizations, and lean mass projections are executed strictly within your device's local JavaScript runtime.
- We do not operate backend user accounts, profile databases, or health data tracking servers.
- We do not record, transmit, sell, rent, or log your personal body composition statistics to any third party.
2. Local Browser Storage & Preferences
We use browser localStorage exclusively to save your UI preference:
- Theme Setting: Storing whether you prefer dark mode or light mode (
theme: 'light' | 'dark').
This data remains on your local device only and is never transmitted across the network. You may clear your browser's local storage at any time through your browser settings.
3. Cookies & Tracking Technologies
ffmicalculatorreal does not employ third-party advertising cookies, cross-site behavioral trackers, or fingerprinting scripts. We believe that health calculators should be clean, focused utilities rather than data harvesting platforms.
4. Infrastructure, Fonts & Server Logs
To deliver high performance and low latency worldwide, our website utilizes standard Content Delivery Network (CDN) services and Google Fonts for typography.
When you request a static HTML page, the web host's server may automatically record standard technical connection metadata, including:
- IP address (for DDoS protection, security, and geographic routing)
- Browser type and version
- Operating system
- Date and timestamp of request
This technical data is strictly used for network security, diagnostics, and maintaining server uptime. It is never linked to biometric inputs or individual personal profiles.
5. Voluntary Contact Inquiries
If you voluntarily reach out to us via our Contact Us page or email, we will retain your email address and message content solely to respond to your inquiry, correct reported bugs, or clarify scientific questions. We do not use your email for unsolicited marketing or sales lists.
6. Your Privacy Rights (GDPR & CCPA Compliance)
Under the General Data Protection Regulation (GDPR), California Consumer Privacy Act (CCPA), and similar global data protection frameworks:
- Right to Know / Access: Because we do not store, profile, or retain personal biometric records, we hold no personal data file on our users.
- Right to Deletion: Closing your browser tab immediately flushes all active memory variables used during the calculation.
- No Sale of Data: We have never sold, rented, or traded user data to data brokers or third parties, and we never will.
7. Questions & Privacy Inquiries
We may update this Privacy Policy from time to time to reflect evolving privacy regulations or new feature releases. Any changes will be posted on this page with an updated revision date.
For questions, concerns, or requests regarding this Privacy Policy, please contact our team directly at [email protected].