Body Fat Calculator
Estimate body fat percentage using the US Navy method
Estimated Body Fat
16.9%
Fitness
US Navy tape-measurement method: an estimate, not a substitute for clinical body composition testing (e.g. DEXA scan).
Reading results never uses a trial use. Copying, saving or printing uses 1 per visit.
About Body Fat Calculator
Estimates body fat percentage using body measurements (typically the U.S. Navy method, based on circumference measurements), which tends to be more informative than BMI alone for assessing body composition.
Enter your measurements as prompted (typically waist, neck, and for women, hip measurements), and your estimated body fat percentage is calculated.
Measure at the same time of day and in the same way each time you check — small differences in where and how you measure can shift the result more than an actual change in body composition would.
Watch: Body Fat Calculator in Action
- Why do my results seem to change between measurements?
- Measure at the same time of day and in the same way each time you check — small differences in where and how you measure can shift the result more than an actual change in body composition would.
Next: BMR & Macro Calculator
Find your baseline calorie and macro needs
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