Not medical advice. The results produced by this calculator are estimates based on a mathematical formula. They are not a substitute for advice from a licensed physician or certified fitness professional. Always consult a qualified healthcare provider before beginning or changing an exercise program.
Acceptance of Terms
By accessing or using CalculateMyHeartRate.com (the "Site"), you agree to these Terms of Use. If you do not agree, do not use the Site. We may update these terms at any time — continued use after changes are posted means you accept the updated terms.
What the Site Does
CalculateMyHeartRate.com provides a free heart rate zone calculator based on the Karvonen formula. You enter your age and optionally your resting heart rate; the calculator returns estimated training zones. The Site also includes:
- An embeddable widget for third-party websites
- A resting heart rate tracker stored locally in your browser
- Educational content about heart rate training zones
No Medical Advice
The calculator produces estimates. Results depend on inputs you provide and on the assumptions built into the Karvonen formula — a population-level model that does not account for individual health status, medications, cardiovascular conditions, or fitness level.
Nothing on this Site constitutes medical advice, diagnosis, or treatment. Do not use results from this calculator to make decisions about your health without consulting a qualified healthcare professional. If you experience chest pain, dizziness, shortness of breath, or any unusual symptoms during exercise, stop immediately and seek medical attention.
Permitted Use
You may use the Site for personal, non-commercial purposes. The embeddable widget may be placed on third-party websites provided the widget attribution link to CalculateMyHeartRate.com is preserved. You may not:
- Scrape, copy, or reproduce the Site's content or code for redistribution without permission
- Use the Site in any way that violates applicable laws or regulations
- Attempt to interfere with, disrupt, or gain unauthorized access to the Site or its infrastructure
- Remove or obscure any copyright, trademark, or attribution notices
Intellectual Property
All content on this Site — including text, design, graphics, and code — is owned by or licensed to CalculateMyHeartRate.com and is protected by copyright law. The Karvonen formula itself is a published scientific method and is not owned by us.
Third-Party Services
The Site uses Google Analytics and Google AdSense. These services are governed by Google's own terms and privacy policies. We are not responsible for the practices of these third parties. Links to external sites are provided for convenience; we do not endorse and are not responsible for their content.
Disclaimer of Warranties
The Site is provided "as is" and "as available" without warranties of any kind, express or implied. We do not warrant that the Site will be uninterrupted, error-free, or free of viruses. We do not warrant the accuracy, completeness, or fitness for a particular purpose of any calculator results.
Limitation of Liability
To the fullest extent permitted by law, CalculateMyHeartRate.com and its operators shall not be liable for any direct, indirect, incidental, consequential, or punitive damages arising from your use of the Site or reliance on calculator results. This includes, without limitation, any injury sustained during exercise based on heart rate zones produced by this calculator.
Indemnification
You agree to indemnify and hold harmless CalculateMyHeartRate.com and its operators from any claims, losses, or damages arising from your misuse of the Site or your violation of these terms.
Governing Law
These terms are governed by the laws of the United States. Any disputes shall be resolved in the appropriate courts of that jurisdiction.
Changes to These Terms
We may revise these terms at any time. The "Last updated" date at the top of this page will reflect the most recent revision.
Contact
Questions about these terms? Email us at contactus@calculatemyheartrate.com.