7 months baby height and weight in boys and girls have different standards, the average height of male babies for about 69.20cm, the average female baby for about 67.30cm; the average weight of male babies for about 8.30kg, the average female baby for about 7.6kg. 1. Height: Generally speaking, the normal range of male babies’ height is between 64.8cm-73.5cm, with an average of about 69.20cm; the normal range of female babies’ height is between 62.7cm-71.9cm, with an average of about 67.30cm. 2. Weight: In general, the normal range of male baby’s weight is 6.7kg-10.3kg, with an average of about 8.30kg; the normal range of female baby’s weight is 6.0kg-9.8kg, with an average of about 7.6kg. The above data is not an absolute standard, 7 months baby height and weight is also related to nutritional status, sleep status, genetics and other factors, there are individual differences. If your 7-month-old baby’s height and weight are significantly different from that of babies of the same age, it is recommended that you consult a doctor promptly.