Use our accurate Body Fat Calculator to estimate your body fat percentage using the U.S. Navy method. Supports both metric and imperial units for male and female calculations.
This calculator uses the U.S. Navy Body Fat Formula, which requires measurements of your height, neck, waist, and hips (for women) to provide a reliable estimate of your body fat percentage. It’s a quick, non-invasive way to track your fitness progress.
Your body fat percentage is a better indicator of your fitness level than your weight alone. Understanding your body composition helps you plan workouts, set realistic goals, and monitor health risks related to too much or too little body fat.
The U.S. Navy Body Fat Formula is considered one of the most practical ways to estimate body fat percentage without expensive equipment. It’s not 100% precise, but it’s close enough for tracking progress.
Men and women store fat differently. The formula uses different measurements for each gender to give a more accurate estimate.
You can choose whichever units you’re comfortable with. The calculator automatically converts to the correct format internally.