Body Fat Percentage Calculator

For men, essential fat is 2-5%, athletes 6-13%, fitness 14-17%, average 18-24%, and obese 25%+. For women, essential fat is 10-13%, athletes 14-20%, fitness 21-24%, average 25-31%, and obese 32%+. The ideal range varies by age and fitness goals.

The U.S. Navy method is reasonably accurate with an error margin of ±3-4%. It's more accurate than BMI for body composition but less precise than DEXA scans or hydrostatic weighing. Results can vary based on measurement technique and individual body composition.

Use a flexible measuring tape and measure on bare skin. For neck: measure just below the larynx. For waist (men): measure at the navel level. For waist (women): measure at the narrowest point. For hips (women): measure at the widest part of the hips.

Men and women store fat in different patterns. Men typically store fat around the waist, so neck and waist measurements are sufficient. Women store fat in hips and thighs, requiring hip measurements for accurate calculation using the Navy method.

Check your body fat percentage every 2-4 weeks if actively trying to change body composition. Monthly measurements are sufficient for maintenance. Daily fluctuations are normal due to hydration, food intake, and measurement variations.

Body fat percentage measures the actual proportion of fat tissue in your body, while BMI only considers height and weight. Body fat percentage is more accurate for assessing health and fitness, especially for muscular individuals who may have high BMI but low body fat.

While exercise helps burn calories and build muscle, reducing body fat typically requires a combination of proper nutrition and exercise. A caloric deficit (burning more calories than consumed) is necessary for fat loss, achieved through diet modifications and increased physical activity.