There are some differences in the standard weight calculated by different calculation methods, the standard weight of 157cm girls can be calculated by the following ways: 1, WHO calculation method: (height – 70) × 0.6, that is, (157-70) × 0.6 = 52.2kg, that is, the standard weight of 157cm girls is about 52.2kg.(actual weight – standard weight)/standard weight is derived The results are within plus or minus 10% for normal weight, plus or minus 10%-20% for underweight or overweight, plus or minus 20% for obese or underweight; 2, body mass index method: 157cm girls can also be calculated by the body mass index method (BMI), using the weight (kg) / height squared (m^2), the value obtained in 18.5-23.9 for standard weight, the value < 18.5 for thin, value > 23.9 for fat, so according to this method, the normal weight of 157cm girls is 45.6kg-58.9kg; 3, waist-hip ratio measurement method: available waist-hip ratio measurement method, the ratio of waist circumference than hip circumference, girls should be less than 0.8. The larger the ratio of waist-hip ratio, it means that the more fat accumulation in the abdomen of girls, should actively control the waist circumference and weight, so as not to endanger the The higher the waist-to-hip ratio, the more abdominal fat a girl has. Thin or fat may have adverse effects on the body, so it is recommended that girls do not blindly lose weight leading to malnutrition. But also do not overeat to cause the body too obese, thus triggering the emergence of high cholesterol and other diseases.