Spread over 8.5 square kilometers or 2,100 acres, the campus houses around 22,000 people including students, teachers, and other college staff members. The campus consists of a 55-kilometer-long road covering the entire campus area and departments. Due to its large campus area, it is the largest and biggest IIT institute in India among all the IIT institutes.

22 Student Hostels are situated on both sides of Scholars Avenue, which extends from the institute gate to B.C. Roy Technology Hospital. There are 10 hostels for Undergraduate male students and two hostels for Undergraduate female students in the main campus area. Apart from that, there are 4 hostels for Female Post-graduate Students, hostels for research scholars, and a separate hostel for students from the armed forces or military.

There are lots of facilities and centers for extracurricular activities available within the IIT Kharagpur campus area like the Student Activity Centre, Gyan Ghosh, Tata Sports Complex for several sports-related activities, B C Roy Technology Hospital, Social and Cultural Centre, Counseling Center, and several cafeterias.

This large area also has enough space for beautiful greenery surroundings at the campus that is important for maintaining ecological balance and offering a favorable environment for innovation and learning. The high-end infrastructure of the campus also includes modern classrooms, libraries and laboratories along with the latest technology center.