Body Fat Calculator
Estimate your body fat percentage using the US Navy tape method. You will need a tape measure for your neck, waist, and (for women) hips.
The US Navy method is an estimate based on measurements and can vary from clinical body composition testing. It is not a diagnosis. For an accurate assessment, consult a licensed physician.
Good to know
What is body fat percentage?
The share of your weight that is fat, versus everything else (muscle, bone, water). It is a better health signal than weight alone.
How accurate is the US Navy method?
It is a solid estimate from tape measurements, usually within a few percent of clinical testing. Measure carefully at bare skin for best results.
What is a healthy range?
It differs by sex. As a rough guide, the fitness range is about 14 to 17% for men and 21 to 24% for women; essential fat is lower.
Why does it ask women for hip?
The women's formula includes hip circumference for accuracy; the men's formula does not.