Terms of Service

1. Acceptance of Terms

Welcome to CalculateMyBMI.net (the "Site," "we," "us," or "our"). These Terms of Service ("Terms") govern your access to and use of the CalculateMyBMI.net website, including all content, calculators, tools, features, and services offered on or through the Site.

By accessing, browsing, or using this Site in any way, you acknowledge that you have read, understood, and agree to be bound by these Terms and our Privacy Policy, which is incorporated herein by reference. If you do not agree to all of these Terms, you must not access or use the Site.

Your continued use of the Site following the posting of any changes to these Terms constitutes your acceptance of those changes. We encourage you to review these Terms periodically to stay informed of any updates.

2. Description of Service

CalculateMyBMI.net provides free online Body Mass Index (BMI) calculators, body composition estimation tools, and educational health content designed to help users understand their weight status relative to established health guidelines. The Site is intended for general informational and educational purposes only.

Our services currently include the following calculators and tools:

• Standard BMI Calculator — Calculates Body Mass Index using the standard WHO formula for adults, supporting both metric and imperial units.
• BMI Calculator for Women — Provides BMI calculations with women-specific healthy weight ranges, body fat considerations, and life-stage guidance.
• BMI Calculator for Men — Provides BMI calculations with men-specific healthy weight ranges and waist circumference guidelines.
• BMI Calculator by Age — Delivers age-adjusted BMI interpretations and recommendations for different adult life stages.
• Pediatric BMI Calculator — Calculates BMI percentiles for children and teens aged 2 to 19 using CDC growth chart data.
• New BMI Calculator (Trefethen) — Computes BMI using the revised 2013 Trefethen formula that adjusts for height bias in the traditional formula.
• Ideal Weight Calculator — Estimates ideal body weight using multiple established clinical formulas including Devine, Robinson, Miller, and Hamwi.
• Lean Body Mass Calculator — Estimates lean body mass, fat mass, and body fat percentage using the Boer, James, and Hume formulas.

In addition to calculators, the Site provides educational guides and articles about BMI interpretation, healthy weight management, body composition, and related health topics. All calculations are performed client-side in your web browser; we do not store, transmit, or have access to the personal health measurements you enter into our calculators.

3. Medical Disclaimer

4. Use of Calculators

The BMI calculators and body composition tools provided on this Site generate results based on widely recognized mathematical formulas and publicly available health data. You acknowledge and agree to the following regarding the use of our calculators:

• Estimates Only: All calculator results are estimates based on standardized formulas. They are not precise measurements of your individual health status, body fat percentage, or disease risk. Actual body composition and health outcomes vary significantly between individuals even at the same BMI value.
• Limitations of BMI: BMI does not directly measure body fat. It does not account for differences in muscle mass, bone density, age, sex, ethnicity, or fat distribution. A person with high muscle mass (such as an athlete) may have a high BMI without having excess body fat. Conversely, a person with a normal BMI may have a high body fat percentage.
• Not a Diagnosis: Calculator results do not constitute a medical diagnosis. A BMI classification of "overweight" or "obese" does not necessarily mean you are unhealthy, just as a "normal" BMI does not guarantee good health. Only a qualified healthcare professional can assess your individual health status.
• General Information Only: The results and accompanying information are intended to provide general educational guidance. They should not be used as the sole basis for making health, dietary, fitness, or medical decisions.
• Pediatric Use: The Pediatric BMI Calculator is designed for children and teens aged 2 to 19 and uses CDC growth chart percentiles. Results for children must always be interpreted by a pediatrician or qualified healthcare provider in the context of the child's individual growth pattern and development.
• Accuracy of Input: The accuracy of calculator results depends on the accuracy of the data you enter. Incorrect height, weight, age, or sex inputs will produce inaccurate results. You are solely responsible for ensuring that the data you provide is correct.

5. Intellectual Property

All content on this Site, including but not limited to text, articles, guides, graphics, logos, icons, images, calculator designs, user interface elements, software code, page layouts, and the overall look and feel of the Site (collectively, "Content"), is the property of CalculateMyBMI.net or its content suppliers and is protected by international copyright, trademark, and other intellectual property laws.

5.1 Permitted Use

You are granted a limited, non-exclusive, non-transferable, revocable license to access and use the Site and its Content for personal, non-commercial purposes. You may use our calculators to calculate your own BMI and body composition metrics. You may share links to pages on the Site. You may cite or quote brief excerpts from our Content with proper attribution and a link back to the original page.

5.2 Prohibited Use

Without prior written permission from CalculateMyBMI.net, you may not:

• Reproduce, duplicate, copy, sell, resell, or exploit any portion of the Site or its Content for commercial purposes.
• Modify, adapt, translate, reverse-engineer, decompile, or disassemble any part of the Site's software or code.
• Use automated systems, including but not limited to web scrapers, bots, crawlers, or spiders, to access, extract, or collect Content from the Site, except as expressly permitted by our robots.txt file.
• Frame or mirror any part of the Site on any other website or server without prior written authorization.
• Remove, alter, or obscure any copyright notice, trademark, or other proprietary rights notice displayed on the Site.
• Create derivative works based on the Site's Content, design, or functionality.
• Use our brand name, logo, or trademarks without explicit written consent.

6. User Conduct

When using this Site, you agree to the following standards of conduct. You shall:

• Use the Site only for lawful purposes and in accordance with these Terms.
• Provide accurate information when using the calculators or contacting us.
• Comply with all applicable local, state, national, and international laws and regulations.

You shall not:

• Attempt to gain unauthorized access to any portion of the Site, other accounts, computer systems, or networks connected to the Site, whether through hacking, password mining, or any other means.
• Interfere with or disrupt the operation of the Site, its servers, or networks connected to the Site, including by transmitting any worms, viruses, spyware, malware, or any other code of a destructive or disruptive nature.
• Use the Site to transmit, distribute, or store material that is unlawful, harmful, threatening, abusive, harassing, defamatory, or otherwise objectionable.
• Attempt to probe, scan, or test the vulnerability of the Site or any associated system or network, or breach any security or authentication measures.
• Impose an unreasonable or disproportionately large load on the Site's infrastructure.
• Use the Site in any manner that could damage, disable, overburden, or impair the Site or interfere with any other party's use and enjoyment of the Site.

7. Third-Party Links and Resources

The Site may contain hyperlinks to third-party websites and resources, including but not limited to the World Health Organization (WHO), the Centers for Disease Control and Prevention (CDC), the National Institutes of Health (NIH), the Mayo Clinic, Harvard Health, the Cleveland Clinic, and other reputable health organizations and medical institutions. These links are provided solely for your convenience and informational reference.

The inclusion of any link does not imply endorsement, approval, or recommendation by CalculateMyBMI.net of the linked website, its content, its products, or its services. We have no control over the content, privacy policies, or practices of any third-party website, and we assume no responsibility or liability for any third-party website or its content.

When you leave our Site and visit a third-party website, you do so at your own risk. We encourage you to review the terms of service and privacy policies of any third-party website you visit. Your interactions with third-party websites, including any information you provide to them, are governed solely by their own terms and policies.

8. Advertising

This Site may display third-party advertisements and promotional content, including advertisements served through the Google AdSense program and other advertising networks. These advertisements may use cookies, web beacons, and similar tracking technologies to serve ads based on your prior visits to this Site or other websites. For more information about how advertising cookies are used, please refer to our Privacy Policy.

You acknowledge and agree that:

• CalculateMyBMI.net is not responsible for the content of any third-party advertisements displayed on the Site. The appearance of advertisements does not constitute an endorsement, guarantee, or recommendation of the advertiser, its products, or its services.
• Any interaction you have with advertisers, including the purchase of products or services, and any terms, conditions, warranties, or representations associated with such dealings, are solely between you and the advertiser.
• CalculateMyBMI.net shall not be responsible or liable for any loss or damage of any kind incurred as a result of any such dealings or as a result of the presence of third-party advertisements on the Site.
• Third-party advertisers may collect information about your browsing activity to provide targeted advertisements. You may opt out of personalized advertising by visiting Google Ads Settings or the Network Advertising Initiative opt-out page.

9. Disclaimer of Warranties

THE SITE AND ALL CONTENT, CALCULATORS, TOOLS, FEATURES, AND SERVICES PROVIDED THROUGH THE SITE ARE PROVIDED ON AN "AS IS" AND "AS AVAILABLE" BASIS WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED.

TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, CALCULATEMYBMI.NET DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO:

• IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON-INFRINGEMENT.
• WARRANTIES THAT THE SITE WILL BE AVAILABLE, UNINTERRUPTED, TIMELY, SECURE, OR ERROR-FREE.
• WARRANTIES THAT THE RESULTS OBTAINED FROM THE USE OF THE SITE OR ANY CALCULATOR WILL BE ACCURATE, RELIABLE, OR COMPLETE.
• WARRANTIES THAT DEFECTS IN THE SITE WILL BE CORRECTED.
• WARRANTIES THAT THE SITE OR THE SERVERS THAT MAKE IT AVAILABLE ARE FREE OF VIRUSES OR OTHER HARMFUL COMPONENTS.

No advice or information, whether oral or written, obtained by you from CalculateMyBMI.net or through the Site shall create any warranty not expressly stated in these Terms. The calculator results, BMI classifications, health information, and all other content on this Site are provided for general informational purposes only and are not guaranteed to be accurate, complete, or current.

10. Limitation of Liability

TO THE MAXIMUM EXTENT PERMITTED BY APPLICABLE LAW, IN NO EVENT SHALL CALCULATEMYBMI.NET, ITS OWNERS, OPERATORS, AFFILIATES, LICENSORS, SERVICE PROVIDERS, EMPLOYEES, AGENTS, OR CONTRACTORS BE LIABLE FOR ANY INDIRECT, INCIDENTAL, SPECIAL, CONSEQUENTIAL, OR PUNITIVE DAMAGES, INCLUDING BUT NOT LIMITED TO:

• Loss of profits, revenue, data, goodwill, or other intangible losses.
• Personal injury or property damage of any nature whatsoever resulting from your access to or use of the Site.
• Any unauthorized access to or use of our servers or any personal information stored therein.
• Any interruption or cessation of transmission to or from the Site.
• Any bugs, viruses, trojan horses, or the like that may be transmitted to or through the Site by any third party.
• Any errors or omissions in any Content or for any loss or damage incurred as a result of the use of any Content posted, emailed, transmitted, or otherwise made available through the Site.

WITHOUT LIMITING THE FOREGOING, YOU SPECIFICALLY ACKNOWLEDGE AND AGREE THAT CALCULATEMYBMI.NET SHALL NOT BE LIABLE FOR ANY DAMAGES, HARM, OR LOSSES ARISING FROM OR RELATED TO:

• Health decisions, dietary changes, exercise programs, or medical treatments undertaken based on BMI results, body composition estimates, or any other information obtained through the Site.
• Reliance on calculator results for any medical, health, fitness, or dietary purpose.
• Failure to seek or delay in seeking professional medical advice based on information provided by the Site.

This limitation of liability applies whether the alleged liability is based on contract, tort, negligence, strict liability, or any other basis, even if CalculateMyBMI.net has been advised of the possibility of such damages. Some jurisdictions do not allow the exclusion or limitation of certain damages, so some of the above limitations may not apply to you. In such jurisdictions, our liability shall be limited to the maximum extent permitted by law.

11. Indemnification

You agree to defend, indemnify, and hold harmless CalculateMyBMI.net, its owners, operators, affiliates, licensors, and service providers, and their respective officers, directors, employees, contractors, agents, licensors, suppliers, successors, and assigns from and against any claims, liabilities, damages, judgments, awards, losses, costs, expenses, or fees (including reasonable attorneys' fees) arising out of or relating to:

• Your violation of these Terms of Service.
• Your use or misuse of the Site, including any calculators, content, or tools provided therein.
• Your violation of any third-party right, including without limitation any intellectual property right, privacy right, or proprietary right.
• Any claim that your use of the Site caused damage to a third party.
• Health decisions or actions taken based on information or results obtained from the Site.

This indemnification obligation shall survive the termination of these Terms and your use of the Site.

12. Modifications to Terms

CalculateMyBMI.net reserves the right to revise, update, or otherwise modify these Terms of Service at any time and at our sole discretion. Any changes will be effective immediately upon posting the updated Terms on this page, with the "Last Updated" date revised accordingly.

We are not obligated to provide you with individual notice of any changes. It is your responsibility to check this page periodically for changes. Your continued use of the Site following the posting of revised Terms constitutes your acknowledgment and acceptance of the updated Terms. If you do not agree to the revised Terms, you must stop using the Site.

13. Governing Law and Jurisdiction

These Terms of Service and any dispute or claim arising out of or in connection with them, their subject matter, or their formation (including non-contractual disputes or claims) shall be governed by and construed in accordance with applicable law. You agree that any legal action or proceeding arising out of or related to these Terms or your use of the Site shall be brought exclusively in the courts of competent jurisdiction, and you consent to the personal jurisdiction and venue of such courts.

Any cause of action or claim you may have arising out of or relating to these Terms or the Site must be commenced within one (1) year after the cause of action accrues. Otherwise, such cause of action or claim is permanently barred.

14. Severability

If any provision of these Terms of Service is found to be invalid, illegal, or unenforceable by a court of competent jurisdiction, such invalidity, illegality, or unenforceability shall not affect the remaining provisions of these Terms, which shall remain in full force and effect. The invalid or unenforceable provision shall be deemed modified to the minimum extent necessary to make it valid, legal, and enforceable while preserving its original intent. If such modification is not possible, the provision shall be severed from these Terms, and the remaining provisions shall continue to be valid and enforceable.

15. Entire Agreement

These Terms of Service, together with our Privacy Policy and any other legal notices or policies published by us on the Site, constitute the entire agreement between you and CalculateMyBMI.net regarding your use of the Site. These Terms supersede all prior and contemporaneous understandings, agreements, representations, and warranties, both written and oral, regarding the Site.

No waiver of any term or condition set forth in these Terms shall be deemed a further or continuing waiver of such term or condition or a waiver of any other term or condition. Any failure by CalculateMyBMI.net to assert a right or provision under these Terms shall not constitute a waiver of such right or provision.

16. Contact Information

If you have any questions, concerns, or comments about these Terms of Service, or if you wish to request permission to use our Content in a manner not covered by these Terms, please contact us at:

We will make reasonable efforts to respond to your inquiry in a timely manner.