With a height of 175, it is more appropriate for a boy to weigh between 61 and 77kg, and for a girl to weigh between 58 and 74kg. To measure the degree of fatness and health of adults, BMI (Body Mass Index) is commonly used to analyze, and its formula is Body Mass Index (BMI)=Weight (kg)/Height (m)^2. Generally, a male BMI between 20 and 25 is the right weight, and a female BMI between 19 and 24 is the right weight. Therefore a 175cm male should weigh between 61~77kg and a 175cm female should weigh between 58~74kg. A 175cm boy weighing less than 61kg is considered too light, weighing between 78~92kg is considered overweight, weighing between 93~107kg is considered obese, and weighing more than 107kg is considered overweight. A 175cm girl weighing less than 58kg is considered underweight, weighing between 75~89kg is considered overweight, weighing between 90~104kg is considered obese, and weighing more than 104kg is considered overweight. If you are underweight, please pay attention to supplemental nutrition; if you are overweight or obese, please pay attention to balanced diet and physical exercise.