Question 1

How does the US Navy body fat formula work?

Accepted Answer

The US Navy method uses circumference measurements (waist, neck, and hip for females) along with height to estimate body fat percentage using logarithmic calculations.

Question 2

What is a healthy body fat percentage?

Accepted Answer

For men, 10-20% is considered healthy (athletes: 6-13%). For women, 18-28% is considered healthy (athletes: 14-20%). These ranges vary by age and fitness goals.

Question 3

Why is hip measurement only needed for females?

Accepted Answer

The US Navy formula accounts for gender-specific fat distribution patterns. Women typically store more fat around the hips, so hip circumference is included to improve accuracy for female body fat estimates.