Abstract:The dimension of delivered placentae mirrors the cumulative conception to parturition. Placental weight is the gross summary of fetal growth under the influence of many extrinsic and intrinsic factors. Hence, the present study evaluated the influence of gestation, sex of the newborn, and parity on feto singleton newborn from a teaching hospital of North Karnataka, India. Data was collected from August 2012 to January 2013 by using standard operating procedures deviations of placental morphometry, respectively. In gestational age 28 to 32 weeks, the consistently up to 6.19:1 with increasing gestat increased with increasing groups of gestational age. Feto was in favor of primipara (6.0:1 (6.3:1). The paritywise feto-placental ratio differences were not statistically significant. However, irrespective of gestation, multipara had higher feto-placental ratio (6.2:1) as compared to pri gestation, males had higher feto placental ratio is influenced by variates o Hence, variations in any of these factors lead to adverse pregnancy outcome by deviation of feto placental ratio.