Body Fat Percentage (Navy Method)

Más néven: Navy Body Fat Formula, US Navy Body Fat Estimation

BF\% = 86.010 \times \log_{10}(waist - neck) - 70.041 \times \log_{10}(height) + 36.76

BF% = 86.010×log10(waist-neck) - 70.041×log10(height) + 36.76

Mit számol

Estimates body fat percentage using circumference measurements. The formula shown is for males — the female version also includes hip circumference.

Szimbólum	Név	Egység	Leírás
BF%	Body Fat Percentage	%	Estimated body fat as a percentage
waist	Waist	cm	Waist circumference at navel
neck	Neck	cm	Neck circumference
height	Height	cm	Standing height

186.010 × log10(85-38) = 86.010 × log10(47) = 86.010 × 1.672 = 143.9

270.041 × log10(178) = 70.041 × 2.250 = 157.6

3BF% = 143.9 - 157.6 + 36.76 = 23.1%

Eredmény: ~23.1%

Measurement consistency matters — always measure at the same spots

Less accurate for very lean or very obese individuals

BMI = weight(kg) / height(m)²

#body composition#body fat#fitness assessment