3.5 kilometers. According to Baidu map query, Nanjing People's Hospital (Jiangsu Provincial Hospital) is located at No.300 Guangzhou Road, Gulou District, Nanjing, Jiangsu Province, and Nanjing Gulou Hospital (Gulou Hospital affiliated to Nanjing University Medical College) is located at No.321Zhongshan Road, Gulou District, Nanjing, Jiangsu Province, with a distance of 3.5 kilometers. It takes about 27 minutes to drive from Nanjing Provincial People's Hospital to Gulou Hospital via Longpan Road, Zhujiang Road and Changjiang Road.