496.6 kilometers. Shangwan Service Area belongs to Gansu Tongmei Highway Service Area Management Co., Ltd., located in Shangwan Township, Weiyuan County, Dingxi City. It is a large-scale bilateral comprehensive service area integrating parking and rest, 24-hour free supply of boiling water, refueling, shopping, catering, accommodation and auto repair. According to the query map, the distance between the two places is 496.6 kilometers, and it takes 6 hours and 28 minutes to drive. Luotang service area belongs to Gansu Province. Luotang service area is located in Wuguan section of expressway, Lanhai, covering an area of more than 60 mu, 70km away from Wudu District of Longnan City and100km away from Guangyuan City, Sichuan Province.