Legal
Plain-English terms for using this free BMI calculator. The most important one: this site provides general information, not medical advice.
Last updated: June 13, 2026
By accessing or using bmicalculatorsystem.com (the “Site”), you agree to be bound by these Terms & Conditions. If you do not agree with any part of these terms, please do not use the Site.
The Site offers a free Body Mass Index (BMI) calculator and related educational content based on published standards from the World Health Organization (WHO) and the U.S. Centers for Disease Control and Prevention (CDC). All calculations run locally in your browser. The Site is provided free of charge and requires no registration.
The Site provides general health information for educational purposes only. It does not provide medical advice, diagnosis, or treatment. BMI is a population-level screening measure with known limitations — it cannot distinguish muscle from fat, account for fat distribution, or replace clinical assessment. Never disregard professional medical advice, or delay seeking it, because of something you read or calculated on this Site. If you have concerns about your weight or health, consult a qualified healthcare professional. If you think you may have a medical emergency, contact emergency services immediately.
The Site is provided on an “as is” and “as available” basis, without warranties of any kind, express or implied — including, without limitation, warranties of accuracy, completeness, fitness for a particular purpose, or uninterrupted availability. While we work to keep formulas and reference ranges aligned with current WHO and CDC standards, we do not guarantee the Site is free of errors.
To the maximum extent permitted by applicable law, the operators of the Site shall not be liable for any direct, indirect, incidental, consequential, or special damages arising out of or in connection with your use of — or inability to use — the Site, including any decisions made on the basis of calculator results or content published here.
You agree not to:
The design, text, and code of the Site are the property of its operators unless otherwise stated. The underlying BMI formulas and the WHO/CDC classification standards are public scientific knowledge and are not claimed as proprietary. You may link to, quote, or reference the Site with attribution.
The Site may link to external websites (for example, WHO, CDC, or Google resources). We are not responsible for the content, accuracy, or privacy practices of third-party sites.
We may update, modify, or discontinue any part of the Site at any time without notice. We may also revise these Terms & Conditions; the “Last updated” date above reflects the latest version. Continued use of the Site after changes constitutes acceptance of the revised terms.
Questions about these terms? Reach us via the contact page.