The measurement of body fat percentage is usually based on a formula, but the formula for calculating body fat percentage is different for men and women because of their specific conditions. Body fat percentage = total body fat weight / body weight * 100%. Body fat weight for women = waist circumference * 0.74 – body weight * 0.082 + 34.89, while body fat weight for men = waist circumference * 0.74 – body weight * 0.082 + 44.74. 1. Body fat percentage of male: The formula for calculating body fat percentage of adult male is mainly parameter a=waist circumference (cm) × 0.74, parameter b=body weight (kg) × 0.082+44.74, and body fat weight (kg)=a-b, and the normal reference range is about 15% to 18%. 2. Body fat percentage of women: The formula for calculating the body fat percentage of adult women is roughly parameter a=waist circumference (cm) × 0.74, parameter b=body weight (kg) × 0.082+34.89, and body fat weight (kg)=a-b, with a normal reference range of roughly 20% to 25%. If the body fat rate is high, the probability of chronic diseases such as high blood fat, diabetes and hypertension will be higher, which is not conducive to the health of the human body, and can be regulated through exercise, such as running, cycling, aerobics, yoga and so on, and also need to reasonably control their diets, and pay attention to stay away from high-fat foods, such as fried foods, lard, cakes, cream and so on.