First of all, girls' height 165 cm and weight 230 kg (about 104.3 kg) belong to the category of obesity. Good health needs to be maintained through proper exercise and reasonable diet. It is recommended to consult a doctor or fitness instructor before starting exercise to ensure safety and effectiveness.

As for the circumference of thighs and calves, everyone's body composition is different, and the reasonable size range is also different. Generally speaking, the circumference of thighs and calves should be consistent with the proportion of the body, so as to better maintain the balance and exercise efficiency of the body.

According to some health guidelines, women's thigh circumference should be between 50-60 cm and calf circumference should be between 30-40 cm. This is only a general guide, and the specific data need to be determined according to the individual's physical condition and body shape.

It should be noted that the girth data can't fully reflect the physical health, and the key is to pay attention to the overall health, including moderate exercise, balanced diet and good living habits.