Is RFM better than BMI?

Evidence shows RFM is a better predictor of body fat percentage than BMI, as it accounts for regional adiposity.

Waist circumference is a direct proxy for visceral fat, which is the most metabolically active and dangerous fat.

Generally targets below 25-30% for men and 35-40% for women.

Verified Formula

Relative Fat Mass (RFM)

A simpler, clinical alternative to BMI.

Gender

Height (ft) (ft)

Height (in) (in)

Waist (in)

Real-time clinical computation active

Awaiting Data

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Enter biometric metrics to generate report

This assessment provides statistical probability and mathematical interpretation based on validated clinical equations. It is not a diagnostic tool.

The Relative Fat Mass (RFM) formula is a high-accuracy, simple equation to estimate body fat percentage using only height and waist circumference.

64 - (20 * Height / Waist) [+12 if Female]

Primary Use

Health Screening

Standard

WHO Guidelines

Complexity

Clinical Grade