Body Fat Percentage Calculator

Find out how much of your body is fat vs. lean mass. Enter your measurements to get your estimated body fat percentage and category instantly.

What is body fat percentage?

Body fat percentage is the proportion of your total body weight that comes from fat tissue. Unlike BMI — which only uses height and weight — body fat percentage gives you a much more accurate picture of your body composition and overall health.

Why does it matter?

Body fat percentage is one of the best indicators of fitness level and metabolic health. Two people can weigh exactly the same but have very different body compositions. Tracking body fat over time tells you whether you’re losing fat, gaining muscle, or both.

Body fat categories for men

• 2 – 5% → Essential fat
• 6 – 13% → Athletic
• 14 – 17% → Fitness
• 18 – 24% → Average
• 25%+ → Obese

Body fat categories for women

• 10 – 13% → Essential fat
• 14 – 20% → Athletic
• 21 – 24% → Fitness
• 25 – 31% → Average
• 32%+ → Obese

How is it calculated?

This calculator uses the U.S. Navy circumference method — one of the most accessible and widely used formulas that doesn’t require calipers or lab equipment. It uses your neck, waist, and hip (women only) measurements alongside your height to estimate body fat percentage.