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Body Fat Percentage Estimator
Estimate body fat from tape measurements with the US Navy circumference method, alongside a BMI-based Deurenberg estimate for comparison.
Body Fat Percentage Estimator
Sex
Navy circumference
16.4%
Hodgdon-Beckett
Deurenberg (BMI based)
21.0%
age and sex adjusted
BMI
25.2
weight / height squared
Two independent estimates. The US Navy circumference method (Hodgdon and Beckett, 1984) uses tape measurements; the Deurenberg (1991) method estimates from BMI, age, and sex. Both are population estimates with several points of error and are not a substitute for DEXA or clinical assessment. Educational use only.
Frequently asked questions
Educational use only
This calculator is provided for research and educational purposes. Outputs are derived from the values you enter. Always verify your math and consult a licensed physician before acting on any result.