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.
- •Premium purchases are for a single user, valid for 24 hours (one-time payment), and allow up to 5 reports per access period.
- •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.
Premium Complete Health Assessment (Paid)
A comprehensive assessment combining all calculators in one report, with personalized meal plans, workout recommendations, PDF download, and email delivery of your full report. This is a paid one-time service — up to 5 reports within a 24-hour access period.
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.
6. Prohibited Uses
You agree not to use the Service to:
Violation of these prohibited uses may result in immediate termination of your access to the Service and, where applicable, legal action.
7. 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.
8. 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.
9. 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.
10. 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.
11. Contact Us
If you have questions about these Terms of Service, please contact us: