305.8 kilometers. According to Baidu map, it is 305.8km from Tianjin to chengde mountain resort, and it takes 4 hours by car. Tianjin, also known as Jingu and Jinmen, is a provincial administrative region, municipality directly under the Central Government, national central city, megacity, national advanced manufacturing R&D base, northern international shipping core area, financial innovation operation demonstration area and reform and opening-up pioneer area of China people. Chengde mountain resort, also known as Jehol Palace, is located at No.6 Shanzhuang East Road, Shuangqiao District, Chengde City, Hebei Province. Chengde mountain resort started large-scale construction in the 42nd year of Kangxi in Qing Dynasty 1703. It is a Summer Palace built in China by the Qing emperor for the political purpose of appeasing, uniting the ethnic minorities in China's border areas and consolidating national unity.