Body Fat Calculator

Estimate your body fat percentage using your height, waist, neck, and hip measurements. This calculator uses the U.S. Navy circumference method to provide an easy body composition estimate.

Body Measurements

Enter your measurements for an estimate

BF%

Sex

Height

Waist Circumference

Measure around your waist without pulling the tape tight.

Neck Circumference

Weight (Optional)

Body Composition

Estimated body fat percentage

Body Fat

—%

Enter your measurements

Your estimated body-fat percentage will appear here.

Fat Mass —

Lean Mass —

Height —

Weight —

Calculation Method

U.S. Navy circumference method using height, waist, neck, and hip measurements.