average baby size at birth
Such babies are needed to be kept in NICU. Average body length of newbornâ 14ââ-20ââ (35.6cms â 50.8cms). There is a little difference in length and weight of boy baby and girl baby. Average length of male baby is 50.6 cms. and that of female baby is 50.1cms. 4% babies are born below 46 cms of length.