Body Fat Percentage Calculator

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Body Fat Calculator

Estimate body fat percentage from the measurements requested by the calculator. The result is an estimate and can vary from professional testing methods. It can be useful for understanding a general estimate, but the result should be viewed in context rather than as a diagnosis or treatment decision.

How to use this calculator

Enter the measurements requested by the tool and use the same measurement method throughout. Small differences in waist, neck, or other inputs can noticeably change an estimate.

Formula

The formula depends on the body-fat method; for example, the U.S. Navy method uses body measurements and height with sex-specific equations.

Before you use the result

This result is an estimate based on the inputs and the method used by the calculator. Different formulas or measurement methods can produce different values, and the result should not be treated as a diagnosis or a substitute for advice from a qualified health professional.

Frequently Asked Questions FAQ

What does the Body Fat Calculator estimate?
The Body Fat Calculator provides an estimate based on the inputs and method supported by the calculator. It is intended as a practical reference, not a diagnosis.
What information do I need for the Body Fat Calculator?
Enter the measurements requested by the tool and use the exact units shown by each field. Accurate, consistent inputs are important because small changes can affect the result.
What formula does the Body Fat Calculator use?
The calculation is based on the relevant standard method. In this calculator, the key relationship is: The formula depends on the body-fat method; for example, the U.S. Navy method uses body measurements and height with sex-specific equations.
How should I interpret the result?
Treat the number as an estimate and consider the assumptions behind it. A single calculator result may not describe an individual's complete health or fitness picture.
What can make the Body Fat Calculator result less accurate?
Incorrect units, rounding, measurement technique, unusual inputs, and using a formula outside the population or method it was designed for can change the result.
Can I use the Body Fat Calculator result as medical advice?
No. A calculator estimate is not a diagnosis or a substitute for advice from a qualified healthcare professional. Use professional guidance for important health decisions.

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