Life cannot be imagined without ultrasonography these days and when it comes to antenatal examination, it plays a very crucial role to detect the growth of fetus and various congenital anomalies. Because of various abnormalities like femur achondroplasia, brachycephalic / dolicocephalic head and IUGR there is a need of new parameters which can be considered in cases of abnormalities. This study has been done to consider Foot Length as a new reliable parameter and compared it with Femur Length in 150 pregnant women. Results showed a significant correlation between foot length and gestational age