Smart Health Calculators

Terms of Service

Please read these terms carefully before using Health Calculators. By using our service, you agree to be bound by these terms.

Last updated: May 13, 2026

Key Points Summary

  • Our calculators are provided for informational purposes only — not as medical advice.
  • The free calculators are available to everyone at no cost.
  • The Complete Health Assessment is a one-time paid product ($9.99). Payment is processed securely via PayPal. No subscription.
  • You must be at least 13 years old to use this service.
  • You may not resell, redistribute, or reproduce our results or content.

1. Acceptance of Terms

By accessing or using Health Calculators at https://www.smarthealthcalculators.com (the "Service"), you ("you", "your", or "User") agree to be bound by these Terms of Service and all applicable laws and regulations.

If you do not agree with any of these terms, you are prohibited from using or accessing this Service. These terms apply to all visitors, users, and others who access or use the Service.

We reserve the right to update or modify these Terms at any time. We will provide notice of significant changes by updating the "Last Updated" date. Your continued use of the Service following any changes constitutes your acceptance of those changes.


2. Description of Service

Health Calculators provides the following tools and services:

Free Calculators

BMI Calculator, BMR Calculator, Body Fat Calculator, Ideal Weight Calculator, Calorie Needs Calculator, and Heart Rate Zones Calculator. These are available to all users at no cost.


Complete Health Assessment ($9.99 one-time)

A personalised plan combining all calculators in one report: exact calorie target, body fat estimate, heart-rate training zones, a 3-day meal plan, shopping list, and a downloadable PDF. A one-time payment of $9.99 is required for access. No subscription or account required. Payment is processed securely via PayPal.

We reserve the right to modify, suspend, or discontinue any part of the Service at any time, with or without notice. We will not be liable to you or any third party for any modification, suspension, or discontinuation.


3. Eligibility

To use this Service, you must:

  • Be at least 13 years of age (or older if required by applicable law in your jurisdiction)
  • Have the legal capacity to enter into a binding agreement
  • Not be prohibited from using the Service under applicable law
  • Provide accurate information when using the calculators for best results

If you are between 13 and 18 years old, you represent that your parent or legal guardian has reviewed and agrees to these Terms on your behalf.

Our calculators accept a minimum age input of 15. Results for individuals under 18 may be less accurate as health formulas are primarily validated for adults.


4. Free Service

Our free calculators are available to all users without registration or payment. Subject to these Terms, we grant you a limited, non-exclusive, non-transferable license to:

  • Access and use the free calculators for your personal, non-commercial health tracking purposes
  • Share links to our calculators with others
  • Print or save results for your personal use

This license does not include the right to resell, systematically download, scrape, data-mine, or reproduce the Service or its content for commercial purposes.

Embedding Our Widgets (Attribution Required)

We offer free embeddable widgets, such as the BMI calculator available at smarthealthcalculators.com/embed. You may embed these widgets on your own website at no cost, subject to the following conditions:

  • The "Powered by Smart Health Calculators" attribution and the accompanying link to our website must remain visible and intact, exactly as supplied in the embed code.
  • You may not remove, hide, obscure, resize to the point of illegibility, relabel, or otherwise alter the attribution, branding, or link.
  • You may not modify the widget code in a way that strips the attribution or misrepresents the widget as your own.

A white-label license, which permits use of the widget without our branding or link, may be available for a fee. To request white-label use, contact us at smarthealthcalculators@gmail.com.

We grant the embedding license on the condition that attribution is preserved. If the attribution or link is removed or altered without a white-label license, the license to embed the widget is revoked automatically and you must remove the widget from your site.


5. Complete Assessment (Paid Product)

5.1 Pricing

The Complete Health Assessment is available for a one-time payment of $9.99. This is a single charge — there is no subscription, no recurring billing, and no account required.

5.2 What You Receive

Upon successful payment you receive immediate access to:

  • Your exact calorie target (TDEE and deficit/surplus)
  • Body fat percentage estimate
  • Heart-rate training zones (5-zone model)
  • Personalised 3-day meal plan and shopping list
  • Downloadable PDF report

5.3 Payment Processing

Payments are processed securely by PayPal. We do not store your credit or debit card details.

5.4 Digital Delivery

The assessment is a digital product delivered instantly on payment confirmation. Access is granted in your current browser session. No account or login is required; we recommend downloading your PDF immediately after purchase.

5.5 Personal Use Only

The Complete Assessment is licensed for the personal, non-commercial use of the individual who completes the assessment. You may not redistribute, resell, or use the report in any way that competes with our Service or violates these Terms.

5.6 Technical Support

If you experience any technical issues accessing the assessment, downloading the PDF, or receiving the email report after payment, please contact us at smarthealthcalculators@gmail.com within 14 days. We will do our best to resolve issues promptly, and will issue a full refund if we cannot deliver access to your completed plan.


6. Refunds & Cancellations

Our Refund Commitment

Because the Complete Health Assessment is a digital product delivered instantly, all sales are generally final. However, we want you to be satisfied — if you experience a technical problem that prevents you from accessing your plan, we will make it right.

6.1 Eligibility for Refund

You are entitled to a full refund if:

  • You were charged but did not receive access to your plan due to a technical error on our part
  • The PDF failed to generate and we cannot resolve the issue within 48 hours
  • You were charged more than once for the same assessment

6.2 Non-Refundable Circumstances

Refunds are not available in the following situations:

  • You have successfully accessed and viewed your plan results
  • You changed your mind after completing the purchase
  • You entered inaccurate data and received a plan based on that data — please review your inputs carefully before purchasing
  • The plan content did not meet personal expectations (the contents are clearly described before purchase)

6.3 How to Request a Refund

To request a refund, email smarthealthcalculators@gmail.com within 14 days of your purchase with the subject line "Refund Request". Please include your PayPal transaction ID and a brief description of the issue. We aim to respond within 2 business days.

6.4 No Subscription — No Cancellation Required

The Complete Health Assessment is a one-time purchase. There is no recurring subscription to cancel. You will never be charged again after your initial $9.99 payment.

For the full standalone Refund Policy, see our Refund Policy page.


7. Prohibited Uses

You agree not to use the Service to:

Use automated bots or scripts to scrape, crawl, or mass-access the Service
Attempt to gain unauthorized access to any part of the Service or its related systems
Reverse engineer, decompile, or disassemble any part of the Service
Reproduce or redistribute our calculator results or content for commercial sale
Impersonate any person or entity or misrepresent your affiliation
Transmit any harmful, offensive, or disruptive content to the Service
Use the Service for any unlawful purpose or in violation of any applicable laws
Build competing products or services using our content or algorithms
Circumvent any technical access controls or rate limits on the Service

Violation of these prohibited uses may result in immediate termination of your access to the Service and, where applicable, legal action.


8. Disclaimers & Limitation of Liability

7.1 Not Medical Advice

The information and results provided by Health Calculators are for general informational and educational purposes only. They are NOT intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or your health. See our full Medical Disclaimer.

7.2 Accuracy of Results

Health calculations are estimates based on established scientific formulas (Mifflin-St Jeor, US Navy Method, Robinson Formula, etc.). Individual results vary based on factors not captured by these formulas, including genetics, medical conditions, and body composition. We strive for accuracy but make no warranty that the calculations are error-free or suitable for any specific individual.

7.3 "As Is" Service

The Service is provided "as is" and "as available" without warranties of any kind, either express or implied, including but not limited to warranties of merchantability, fitness for a particular purpose, or non-infringement. We do not warrant that the Service will be uninterrupted, secure, or error-free.

7.4 Limitation of Liability

To the maximum extent permitted by applicable law, Health Calculators shall not be liable for any indirect, incidental, special, consequential, or punitive damages, including but not limited to loss of profits, data, or goodwill, arising out of or in connection with your use of the Service, even if we have been advised of the possibility of such damages. Our total liability to you for any claim shall not exceed the amount you paid for the Service in the 12 months preceding the claim.

7.5 Indemnification

You agree to indemnify, defend, and hold harmless Health Calculators and its operators from and against any claims, liabilities, damages, losses, and expenses arising out of or relating to your use of the Service, your violation of these Terms, or your violation of any rights of another party.


9. Intellectual Property

The Service and its original content (including but not limited to calculator designs, algorithms as implemented, meal plan data, workout recommendations, text, graphics, and code) are and will remain the exclusive property of Health Calculators and its licensors, protected by applicable copyright and intellectual property laws.

Our trademarks and trade dress may not be used in connection with any product or service without our prior written consent.

You may not copy, reproduce, distribute, modify, create derivative works from, publicly display, publicly perform, republish, download, store, or transmit any material from our Service except for your personal, non-commercial use (e.g., saving your own PDF report).

The mathematical formulas used in our calculators (Mifflin-St Jeor, Robinson Formula, US Navy Body Fat Method, etc.) are established scientific formulas in the public domain. Our specific implementation, UI, content, and organization are proprietary.


10. Governing Law & Disputes

These Terms shall be governed by and construed in accordance with applicable law. Any disputes arising from these Terms or your use of the Service should first be attempted to be resolved informally by contacting us at smarthealthcalculators@gmail.com.

If informal resolution fails, disputes shall be resolved through binding arbitration rather than in court, except that either party may seek injunctive relief in court for infringement of intellectual property rights.


11. Miscellaneous

Severability: If any provision of these Terms is found to be unenforceable, the remaining provisions will remain in full force and effect.

Entire Agreement: These Terms, together with our Privacy Policy, Refund Policy, and Medical Disclaimer, constitute the entire agreement between you and Health Calculators regarding the Service.

Waiver: Our failure to enforce any right or provision of these Terms shall not be considered a waiver of those rights.

Assignment: You may not assign or transfer your rights under these Terms without our prior written consent. We may assign our rights at any time.

Force Majeure: We are not liable for delays or failures in performance caused by circumstances beyond our reasonable control.


12. Contact Us

If you have questions about these Terms of Service, please contact us: