Aim-The goal of the study is to assess the dimensions of the frontal sinus between the two gender among a sample of the western UP population with MDCT. Materials And Method- This was a prospective cross-sectional study involving 120 patients (aged 20-60) furthermore, each participant’s gender, and age were documented. The study excluded those who had Sinusitis, Incomplete growth of sinuses, Unable to visualize, and congenital anomalies. Scans were performed using Philips ingenuity core 128 slice CT scan at the Radiology department of Teerthankar Mahaveer Hospital and Research centre, Moradabad. Results- The Independent sample “t” test was used to compare age, axial width; depth of frontal sinus, coronal height, and distance according to gender. There was a difference (p < 0.05) in the depth of frontal sinuses, coronal height, and distance among males and females. The Paired “t” test was used to compare axial width, depth of frontal sinus, and coronal height between the left and right sides. There was a difference (p < 0.05) in the depth of the frontal sinus and coronal height between the left and right sides. Among males, there was a difference (p < 0.05) in the depth of the frontal sinus and coronal height between the left and right sides. Also, within females, coronal height exhibited a difference between both sides. There was a difference in the depth of the frontal sinus between the two sides within the age group of 20-30 years. Also, coronal height exhibited a variation among the left side and right side within the people ageing 31-40, 41-50, and 51-60 years.