Body Fat Calculator
Estimate your body fat percentage using the US Navy circumference method — no calipers or scales required, just a tape measure. Enter your measurements to see your body fat percentage and fitness category.
Body Fat Calculator
health calculator
How It Works
Formula
Men: 495 / (1.0324 − 0.19077·log10(waist−neck) + 0.15456·log10(height)) − 450
Examples
Male, 175cm, 38cm neck, 85cm waist
A typical adult male measurement yielding around 18% body fat.
Frequently Asked Questions
What is a healthy body fat percentage?
For men, 14-17% is fitness level and 18-24% is average. For women, 21-24% is fitness and 25-31% is average. Essential fat is 2-5% (men) and 10-13% (women).
How accurate is the Navy method?
The US Navy method is accurate within 3-4% for most people compared to professional methods. It is far more accurate than BMI for assessing body composition.
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