Body Fat Calculator

What is a Body Fat Calculator?

A body fat calculator estimates your body fat percentage using the US Navy method. It uses body measurements to estimate how much of your weight is fat versus lean mass.

How to Use This Calculator

Enter your gender, height, neck, and waist measurements. For women, hip measurement is also required. The calculator uses these to estimate body fat %.

Body Fat Ranges

• Essential Fat: 2-5% men, 10-13% women
• Athletes: 6-13% men, 14-20% women
• Fitness: 14-17% men, 21-24% women
• Average: 18-24% men, 25-31% women

Why Body Fat Matters

Unlike BMI, body fat % distinguishes between fat and muscle mass for better health assessment.

FAQ

How accurate is this calculator?
The Navy method is accurate within 3-4% for most people.