Body Fat Percentage Calculator
Last Updated: 8 April 2026
What is Body Fat Percentage Calculator?
The Mathematical Formula
Men (Metric) = 495 / (1.0324 - 0.19077 × log10(waist - neck) + 0.15456 × log10(height)) - 450
📊 Practical Example
"A male with 175cm height, 38cm neck, and 85cm waist has an estimated body fat of ~16.8%. This falls in the 'Fitness' category."
⚠️ Common Mistake
Frequently Asked Questions
Q.How accurate is the US Navy method?
The US Navy method is accurate within +/- 3-4% for most people. While not as accurate as a DEXA scan, it is significantly more reliable than standard BMI for individuals with higher muscle mass.
Q.Where should I take the measurements?
For men: Measure neck below the larynx and waist at the navel. For women: Measure neck below larynx, waist at the narrowest point, and hips at the widest point.
Q.What is a healthy body fat percentage?
For men, 14-24% is considered healthy/average. For women, 21-31% is considered healthy/average. 'Essential fat' levels are 2-5% for men and 10-13% for women.
Q.Does the calculator distinguish between visceral and subcutaneous fat?
No, this method estimates total body fat. It cannot distinguish between visceral fat (around organs) and subcutaneous fat (under skin), though a high waist circumference often correlates with visceral fat.