Privacy Policy

1. In-Browser Calculations & Data Flow

When you use any of the interactive utilities on onlineheightcalculator.com—including the Height Calculator, Celebrity Height Comparison, Child Height Predictor, BMI Calculator, and Height Converter—the values you enter (such as height, weight, age, sex, parental statures, or custom comparison labels) are computed locally within your web browser using JavaScript.

Based on the strict technical architecture of this website:

• No transmission: Calculator inputs are not sent over the network to any remote server or backend database for processing.
• No permanent storage: Calculations reside strictly in transient browser memory. Once you refresh or close the tab, that computation state is wiped.
• Share URLs: In the visual height comparison tool, if you choose to click "Copy Link" or share your comparison via device tools, figure IDs or statures are encoded as URL query parameters in the address bar so that your recipient can view the same figures. That URL is shared only by you at your discretion.

2. Technical Information Collected Automatically & Legal Basis

Like virtually all web properties, when you request pages on our site, our hosting infrastructure and edge web servers record standard technical access log entries. This operational data includes:

• Your Internet Protocol (IP) address;
• Browser type, version, and language configuration;
• Operating system and device platform;
• Referring website address and pages requested on our site;
• Date, time stamp, and HTTP response status code.

3. Cookies & Browser Local Storage

4. Analytics, Advertising & Third-Party Services

We maintain a clean, privacy-respecting user experience:

• No Third-Party Advertising: We do not display ad network banners (such as Google AdSense), nor do we run cross-site behavioral tracking scripts.
• No Invasive Analytics: We do not deploy third-party analytics trackers or tracking pixels that follow your browsing across the web.
• Typography Delivery: We load Google Fonts (fonts.googleapis.com and fonts.gstatic.com) to display the Geist font family cleanly. Google may receive standard HTTP requests containing your IP address to deliver the font files.

If we ever introduce privacy-preserving aggregate analytics or operational support in the future, this policy will be revised and posted here prior to implementation.

5. Children's Privacy (COPPA & GDPR-K)

Our growth prediction and percentile tools are designed for educational reference and use by parents, legal guardians, and adult caregivers. Online Height Calculator does not knowingly collect, store, or solicit personal information from children under the age of 13 (or under 16 within the European Economic Area).

Because calculations occur strictly in-browser without account registration, user profiles, or cloud database storage, no personal child records or identifying information are collected or maintained by our systems.

6. California Privacy Notice (CCPA / CPRA)

This section supplements our policy for California residents under the California Consumer Privacy Act, as amended by the California Privacy Rights Act (CCPA/CPRA).

7. Your Global Privacy Rights & Supervisory Complaints

Depending on your jurisdiction (such as under the EU/UK GDPR, California CPRA, or Canadian PIPEDA), you have specific statutory rights:

• Right of Access & Portability: Request details regarding any communication records or limited technical data we hold.
• Right to Rectification or Erasure: Request the correction or deletion of email correspondence you have sent to us.
• Right to Restriction & Objection: Object to or restrict the processing of your data where applicable.
• Right to Non-Discrimination: We never discriminate against any user for exercising their statutory privacy rights.
• Right to Lodge a Complaint: If you reside in the EEA or UK, you have the right to lodge a complaint with your local Data Protection Authority (e.g. the Information Commissioner's Office in the UK, or national DPAs in the EU).

Because we do not maintain user profiles, accounts, or stored calculation datasets, we hold no personal profiles to query or delete. To exercise any rights regarding email correspondence, please contact our privacy lead at [email protected].

8. Data Retention & International Hosting Transfers

Retention Schedules: Technical server access log entries are retained only as long as necessary to ensure network stability and security diagnostics (typically rotating and purging within 30 to 90 days), after which they are permanently overwritten or deleted. Any direct email correspondence is retained only for as long as required to resolve your inquiry.

International Transfers: Our website hosting and content delivery network operate globally, with primary server nodes located in the United States and European Union. When data is routed internationally, standard contractual protections and encryption-in-transit are maintained.

9. Policy Updates & Contact Information

We may update this Privacy Policy periodically to reflect site enhancements, calculator additions, or evolving statutory legal requirements. The updated date at the top of this document will always reflect the most recent version.

For privacy concerns, questions regarding our data practices, or to exercise your rights, please visit our Contact Us page or contact our designated data protection contact directly at:

For terms governing the use of our services, please read our Terms & Conditions.