Background: Laparoscopic cholecystectomy has become gold standard for the surgical treatment of gallbladder disease. This study was performed to identify the Ultrasound findings of Gallbladder in influencing the conversion of laparoscopic cholecystectomy to open procedure. Methods: The study was carried out in Silchar Medical College & Hospital, Assam, a tertiary care center. In present study we included 150 patients of calculous cholecystitis on the basis of history, clinical examinations and USG findings and they underwent laparoscopic cholecystectomy during the period from August 2018 to July 2019. Ultrasound findings of Gallbladder assessed within 24hrs prior to Laparoscopic cholecystectomy and operation time and conversion to open surgery was noted. Results: Distended/Contracted gallbladder, thickened gallbladder, pericholecystic fluid were found statistically significant in the risk of conversion to open surgery . Conclusion: Ultrasonographic findings of Gallbladder help predict difficult Laparoscopic cholecystectomy and hence,the risk of conversion to open surgery.