Terms of Service

By accessing or using Growth Chart Calculator, you agree to these Terms of Service and to any updates posted on this page. These terms apply to the calculator, related guides, FAQs, and other site content made available through our website.

If you do not agree to these terms, stop using the site. We may revise these terms at any time, and your continued use of the website after changes are published means you accept the revised version.

Growth Chart Calculator provides free online tools that help parents and caregivers estimate baby, toddler, and child height, weight, and BMI percentiles. The site uses publicly available WHO and CDC growth references as the basis for calculator logic and explanatory content.

The service is offered for general informational use only. We may update, improve, suspend, limit, or discontinue any part of the website or calculator tools at any time without prior notice if that is necessary for maintenance, legal, or operational reasons.

You may use the site only for lawful, personal, and non-commercial purposes unless we give prior written permission for another use. You may not copy the service into another product, imply that the site endorses you, or present our materials in a misleading way.

• Do not scrape, crawl, or bulk extract data or outputs from the site.
• Do not attempt to overload, probe, or bypass security or rate limits.
• Do not upload, inject, or distribute malicious code or harmful automation.
• Do not impersonate Growth Chart Calculator or mislead other users about your affiliation.
• Do not use the website in violation of applicable local, national, or international law.

The website's original text, design, calculator implementation, branding, layout, and graphics are owned by Growth Chart Calculator or used with permission, and they are protected by copyright and other applicable intellectual property laws.

You may use calculator outputs for personal, non-commercial reference. You may not reproduce, copy, republish, mirror, or redistribute substantial parts of the site without prior written permission. WHO and CDC reference data remain attributable to their original public-health sources, and those sources are identified where relevant across the site.

The website may include links to third-party websites or services, including CDC, WHO, pediatric organizations, analytics providers, or advertising partners. These links are offered for convenience and reference only.

We do not control third-party content, privacy practices, availability, or security, and we do not assume responsibility for any information, service, or policy presented on third-party sites. If you choose to follow an external link, you do so at your own risk and should review that provider's own legal terms and privacy notices.

To the fullest extent permitted by applicable law, Growth Chart Calculator and its operators will not be liable for any direct, indirect, incidental, consequential, special, or punitive damages arising out of or related to your use of, inability to use, or reliance on the website or calculator outputs.

This limitation includes losses tied to medical decisions, inaccurate inputs, service interruptions, technical failures, data transmission problems, or temporary unavailability. If liability is found despite this section, our maximum aggregate liability will not exceed the amount you paid to use the site during the prior 12 months. Because the service is free, that amount is generally $0.

The website and all related content are provided on an "as is" and "as available" basis. We do not warrant that the site will always be uninterrupted, secure, error-free, or suitable for every possible use case or device environment.

We also do not guarantee absolute accuracy, completeness, or fitness for a particular purpose, especially where results depend on correct measurements, user inputs, browser behavior, or evolving clinical context. To the maximum extent allowed by law, all express and implied warranties are disclaimed.

We may update these Terms of Service from time to time to reflect product changes, legal developments, operational needs, or clarifications to existing rules. When we do, we will update the "Last Updated" date at the top of this page.

We encourage you to review this page periodically, especially before relying on the site for repeated use. Your continued use of Growth Chart Calculator after revised terms are posted means you accept the new terms then in effect.

These Terms of Service are governed by the laws of [applicable jurisdiction], without regard to conflict-of-law principles that would require the application of another jurisdiction's rules.

If a dispute arises from or relates to the website, the parties should first attempt to resolve the matter through good-faith discussion. If that effort does not resolve the dispute, the matter should be submitted to a court of competent jurisdiction in [applicable jurisdiction], unless applicable law requires a different venue.

If you have any questions about these Terms of Service, please contact us using the addresses below. We aim to respond to general inquiries within 3 business days.