Background: The Anterior cruciate ligament (ACL) is among most commonly affected ligaments, and surgical treatment is chosen for most patients who present pain and instability. Aims and objectives: The aim of this study to assess the correlation of patient’s height, weight and BMI with autologous harvested hamstring graft size. Material and method: This study is Experimental study design. In this study a total of 50 patients, selected cases were operated for the primary ACL reconstruction utilizing hamstring tendon autograft at the Department of Orthopedics at Dr. Baba Saheb Ambedkar Medical College, Delhi, India from 15th August 2020 to 15th Jan 2022.