Last updated: 3 October 2026
Not Medical Advice
FFMI Calculator Pro provides information for education and general fitness purposes only. Nothing on this site is medical advice, and it does not diagnose, treat or prevent any condition.
Consult Your Physician
Talk to your physician or a qualified health professional before starting a new training program, changing your diet, or acting on any result from this site. This is especially important if you have a medical condition, are pregnant, take medication, or are under 18.
In Case of Emergency
If you think you may have a medical emergency, contact your physician or call your local emergency number immediately. Do not rely on this website in an emergency.
Results Are Estimates
FFMI results depend on the accuracy of your inputs, especially your body fat percentage. The ranges and the natural limit are general reference points drawn from research. They are not a diagnosis and not a test for steroid use.
Accuracy of Information
The information on this site is researched carefully and is reliable to the best of our knowledge, but research changes and errors can happen. We make no guarantee that it is complete or current.
External Links
Links to studies and other websites are provided for reference. We do not control or endorse their content.