The standard weight of a girl with a height of 165cm is 57.5kg, and 10% up and down within this range, all belong to the normal weight range, that is, if a girl is 165cm tall and weighs 51.75-63.25kg she is of normal weight. In addition, the assessment of 165cm girls standard weight commonly can also be calculated in the following comprehensive way: 1, standard weight calculation: China’s commonly used standard weight calculation formula, improved by the Broca formula, more applicable to our residents. Specific calculation method: female standard weight (kg) = height (cm) – 105-2.5; 2, percentage calculation: you can calculate their actual weight as a percentage of the standard weight, the formula is as follows: [(actual weight – standard weight) / standard weight] × 100%. If the result is within ± 10% belongs to the normal weight range; if the result is an increase of 10%-20% for overweight; more than 20% for obesity; if it is a decrease of 10%-20% for wasting; below 20% for obvious wasting; 3, body mass index calculation: you can also measure whether the weight is within the normal range by calculating the ratio of weight and height, which is the body mass index, BMI = weight (kg) / [height (m)]². According to the standard of China Nutrition Association, 18.5≤BMI＜24 is the normal weight range, if BMI＜18.5 is wasting, 24≤BMI＜28 is overweight, BMI≥28 is obese. In the above way, we can calculate whether 165cm girls are within the standard weight range and assess whether they are in the healthy weight range. Based on the results, we assess whether there is overweight and obesity. When there is overweight or obesity, you can help reduce fat through scientific and reasonable weight loss methods including diet adjustment and moderate exercise. If a 165cm tall girl has the phenomenon of wasting, she can choose a nutrient-rich diet with more food rich in protein, vitamins and other nutrients, such as fresh vegetables and fruits, meat, eggs and milk.