Terms of Service
Acceptance of Terms
By accessing and using the Waist to Hip Ratio Calculator website ("the Service"), you agree to be bound by these Terms of Service ("Terms"). If you do not agree to these Terms, please do not use the Service.
These Terms apply to all visitors, users, and others who access or use the Service. By using the Service, you represent that you have the legal capacity to enter into these Terms.
Description of Service
The Service provides free online calculator tools for body measurements, including:
- Waist-to-hip ratio (WHR) calculator with health risk assessment
- Waist-to-height ratio (WHtR) calculator
- Body Mass Index (BMI) calculator
- Body shape calculator
- Educational content about body measurements and health
The Service is accessible via web browser on desktop and mobile devices. No account registration is required to use the calculators. All calculations are performed locally in your browser.
What This Calculator Is and Isn't
To set clear expectations, here is a breakdown of what the Waist to Hip Ratio Calculator provides and what falls outside its scope. Understanding these boundaries helps you use the tool responsibly and get the most value from it.
| Aspect | What It Is | What It Is NOT |
|---|---|---|
| Purpose | Educational screening tool | Medical diagnostic device |
| Results | Estimates based on WHO formulas | Clinical measurements |
| Risk categories | Population-level guidelines | Individual health predictions |
| Advice | General health information | Personalized medical recommendations |
| Data | Processed locally in your browser | Stored, shared, or sold |
If you are unsure whether this tool is appropriate for your situation, consult a qualified healthcare provider. For more details about how the calculator works and the research behind it, visit our About page or read our guide on waist-to-hip ratio health risks.
Disclaimer of Warranties
THE SERVICE IS PROVIDED "AS IS" AND "AS AVAILABLE" WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR IMPLIED.
The calculations provided by this Service are estimates for informational and educational purposes only. They are NOT:
- Medical advice: Do not use results to diagnose, treat, or manage any health condition
- Professional health guidance: Results should not replace consultation with qualified healthcare providers
- Financial advice: Do not make financial decisions based on health metrics from this calculator
- Legal advice: Results have no legal standing or significance
- Fitness prescriptions: Consult fitness professionals before starting exercise programs
Results should be verified by qualified professionals for any important decisions related to your health, fitness, or well-being.
This calculator provides estimates based on the WHO formula (WHR = Waist ÷ Hip). It is not a substitute for professional medical evaluation. Results should be discussed with a qualified healthcare provider before making health decisions. Many factors beyond WHR affect health outcomes.
Educational Use Statement
We are committed to making health-related information accessible, accurate, and transparent. All content published on this website has been carefully researched and written with the goal of helping people understand body composition metrics and their relationship to health.
All content on this website is provided for educational and informational purposes. Our guides cite peer-reviewed research from journals including The Lancet, Obesity Reviews, and BMJ. Sources are linked for verification. We do not provide personalized medical advice.
Our educational content covers topics such as how to measure your waist and hips correctly, what waist-to-hip ratio means for cardiovascular and metabolic health, and how WHR compares to other body composition indicators like BMI and waist-to-height ratio. For an in-depth look at health risks associated with abdominal fat distribution, see our WHR health risks guide. You can also explore additional articles on the blog.
Limitation of Liability
To the maximum extent permitted by applicable law, we shall not be liable for any indirect, incidental, special, consequential, or punitive damages, or any loss of profits or revenues, whether incurred directly or indirectly, or any loss of data, use, goodwill, or other intangible losses resulting from:
- Your use of or inability to use the Service
- Any decisions, actions, or outcomes based on calculator results
- Any errors, inaccuracies, or omissions in the calculations or content
- Unauthorized access to or alteration of your data
- Any third-party conduct on the Service
You use this Service entirely at your own risk. We are not responsible for how you interpret or act upon the information provided.
Accuracy
We strive for accuracy in our calculations based on established formulas and methodologies:
- Waist-to-hip ratio uses the standard formula: WHR = Waist ÷ Hips
- BMI uses the standard formula: Weight(kg) ÷ Height²(m²)
- Health risk thresholds are based on World Health Organization guidelines
- Formulas and reference data are documented on our About page
For a full explanation of each formula, risk threshold, and the peer-reviewed studies underpinning our methodology, see our About page.
However, we do not guarantee the accuracy, completeness, or reliability of any calculations or results. Mathematical formulas may be simplified, thresholds may be approximations, and individual circumstances vary widely.
Results depend on the accuracy of measurements you provide. Measurement errors will affect results.
Permitted Use
You MAY:
- Use the calculators for personal, non-commercial purposes
- Link to our calculators and pages from your website, blog, or social media
- Share calculator results with healthcare providers or fitness professionals
- Reference our educational content with proper attribution
You MAY NOT:
- Scrape, crawl, or send automated requests to the Service
- Embed the Service in iframes or other containers without written permission
- Copy substantial portions of our content, design, or code
- Use the Service for any unlawful purpose
- Attempt to interfere with or disrupt the Service
- Remove or alter any copyright or proprietary notices
- Misrepresent your affiliation with or endorsement by the Service
If you wish to embed our calculators or use our content beyond fair use, please contact us to discuss licensing.
Intellectual Property
The Service and its original content, features, and functionality are owned by the Service operators and are protected by international copyright, trademark, and other intellectual property laws.
This includes:
- Website design and user interface
- Written content and educational materials
- Software code and algorithms (implementation, not mathematical formulas)
- Graphics, logos, and visual elements
Note: The underlying mathematical formulas themselves (WHR = Waist ÷ Hip, BMI = Weight ÷ Height², etc.) are in the public domain and are not claimed as proprietary.
External Links
The Service may contain links to external websites or resources that are not operated by us. These links are provided for convenience and reference only.
We have no control over and assume no responsibility for:
- The content, privacy policies, or practices of third-party sites
- The accuracy or reliability of information on linked sites
- Any products or services offered by third parties
You acknowledge and agree that we shall not be responsible or liable for any damage or loss caused by or in connection with the use of any third-party content, goods, or services.
Modifications to Service and Terms
We reserve the right to:
- Modify, suspend, or discontinue the Service (or any part thereof) at any time without notice
- Update these Terms at any time
- Change calculator features, formulas, or reference data
When we make material changes to these Terms, we will update the "Last Updated" date. Your continued use of the Service after changes constitutes acceptance of the new Terms.
We encourage you to review these Terms periodically for any changes.
Termination
We may terminate or suspend your access to the Service immediately, without prior notice or liability, for any reason, including:
- Violation of these Terms
- Conduct that we believe is harmful to other users or the Service
- Automated or abusive access patterns
Upon termination, your right to use the Service will immediately cease.
Severability
If any provision of these Terms is held to be invalid, illegal, or unenforceable by a court of competent jurisdiction, such provision shall be modified to the minimum extent necessary to make it valid and enforceable, or if modification is not possible, shall be severed from these Terms.
The invalidity or unenforceability of any provision shall not affect the validity or enforceability of the remaining provisions, which shall continue in full force and effect.
Trusted Health Resources
The following authoritative health organizations provide reliable, evidence-based information on obesity, body composition, and weight management. We reference these sources throughout our website and encourage users to consult them for further reading:
- World Health Organization (WHO) — Obesity and Overweight Fact Sheet — Global guidelines on obesity classification, including the WHR thresholds used in our calculator.
- Centers for Disease Control and Prevention (CDC) — Obesity — U.S. surveillance data, prevention strategies, and public health resources on obesity.
- National Institutes of Health (NIH) — Weight Management — Research-backed guidance on healthy weight, nutrition, and physical activity.
- American Medical Association (AMA) — Professional medical association providing policy, education, and advocacy resources for physicians and patients.
- INTERHEART Study (PubMed) — Landmark global case-control study demonstrating the association between waist-to-hip ratio and risk of myocardial infarction across diverse populations.
These links are provided as reference resources. We have no affiliation with or endorsement from any of these organizations. Always verify information with your healthcare provider.
Explore Our Website
Learn more about waist-to-hip ratio and how to use our tools effectively by visiting the pages below:
- Waist to Hip Ratio Calculator — Use our free WHR calculator to estimate your waist-to-hip ratio and see where you fall on the WHO health risk scale.
- Health Guides & Articles — Browse our collection of research-backed guides covering body composition, metabolic health, and measurement best practices.
- Waist-to-Hip Ratio Health Risks — An in-depth guide explaining how WHR relates to cardiovascular disease, type 2 diabetes, and other chronic conditions.
- About Us — Learn about our methodology, the formulas we use, and the research that supports our calculator.
- Contact Us — Have a question or suggestion? Reach out to our team through the contact form.
- Privacy Policy — Read about how we handle your data and protect your privacy while using our tools.
Contact
If you have questions about these Terms of Service, please contact us:
Email: info@waisttohipratio.org
You can also use our contact form to reach us.
Last Updated: January 2026