Terms of Use
Legal agreement governing the use of our height calculator tools and growth prediction services.
Agreement Overview
These Terms of Use ("Terms") constitute a legally binding agreement between the user ("You") and this website ("We" or "The Site") regarding access to and use of our growth calculation tools. By accessing this website, utilizing the calculators, or submitting inquiries via our contact form, you agree to be bound by these Terms and all applicable laws and regulations.
Acceptable Use of Services
Our website provides digital calculation tools designed to estimate child growth patterns based on established mathematical formulas.
Informational Purpose Only
The content and tools, including the Child Height Predictor, Percentile Calculator, and Mid-Parental Height Calculator, are for educational and informational purposes only. They do not constitute a medical diagnosis or professional medical advice.
Prohibited Actions
Users must not attempt to reverse-engineer the calculator code, scrape data using automated bots, or use the website in any manner that could damage, disable, or impair the server infrastructure.
Data Accuracy
Users are responsible for the accuracy of the data (age, height, weight) entered into the calculators. We are not responsible for errors resulting from incorrect user input.
Intellectual Property Rights
The underlying code, design, text, and specific implementations of the growth algorithms on this site are the exclusive property of the website owners.
- Copyright Protection: All text, graphics, and interface elements are protected by copyright laws.
- Algorithm Usage: While the underlying mathematical formulas (Khamis-Roche, Tanner Method, CDC/WHO Standards) are scientific standards in the public domain or available for clinical use, our specific custom implementation and coding of these formulas are proprietary.
Third-Party Services (Formspree)
This website utilizes specific third-party services to facilitate user communication and site functionality.
- Contact Form Processing: User inquiries submitted through our contact page are processed and transmitted by Formspree.io. By submitting a message, you acknowledge that your contact details and message content are handled in accordance with Formspree's service protocols.
- External Links: Our site may contain links to external authoritative sources (such as the CDC, WHO, or NIH). We do not control and are not responsible for the content or privacy practices of these external government or organizational websites.
Disclaimer of Warranties
All services and tools on this website are provided on an "as is" and "as available" basis without any warranties of any kind.
- No Guarantee of Accuracy: While we utilize peer-reviewed algorithms (Khamis-Roche, Tanner) and official datasets (CDC/WHO), human growth is biologically complex. We do not guarantee that a child's actual adult height will match the predictions generated by our tools.
- No Medical Warranty: We expressly disclaim any warranty that the site will meet your medical or clinical requirements. Users should verify any concerning results with a certified healthcare provider.
Limitation of Liability Reference Table
The following table defines the limits of our liability regarding your use of this site.
| Responsibility Area | Our Liability Status | User Responsibility |
|---|---|---|
| Growth Outcomes | No Liability | Users must understand results are estimates, not guarantees. |
| Data Entry Errors | No Liability | Users must ensure input data (cm/kg) is accurate. |
| Medical Decisions | No Liability | Users must consult doctors for growth concerns. |
| Site Availability | Limited | We do not guarantee 100% uptime. |
| Third-Party Data | Limited | We are not liable for Formspree's data handling. |
Frequently Asked Questions regarding Terms
Can I use these calculators for clinical diagnosis?
No. These tools are designed for parental monitoring and educational reference only. They lack the clinical context (such as bone age x-rays or hormonal analysis) required for a formal medical diagnosis.
Do you guarantee the predicted height?
No. The Khamis-Roche and Tanner methods provide a statistical "most likely" range. Biological factors such as nutrition, illness, and random genetic variation mean actual results may differ from the calculation.
Who owns the data I enter?
You do. Because our calculators operate on a client-side basis (in your browser), we do not claim ownership of, nor do we store, the height and weight data you enter during a session.
Governing Law
These Terms shall be governed by and construed in accordance with the laws of the jurisdiction in which the website operates, without regard to its conflict of law provisions. Any legal action or proceeding related to this website shall be brought exclusively in a federal or state court of competent jurisdiction.
Terms of Use Updates
These terms of use may be updated periodically to reflect changes in our services, legal requirements, or operational practices.
Last Updated: January 1, 2026