406.5 kilometers. According to Baidu map, it is 406.5 kilometers from Nanjing to Peixian County, and the journey takes 4 hours and 54 minutes, passing through Qianlu of Academy of Sciences and Lanjiazhuang. You can also take the G 182 train. The whole journey takes 3 hours and 6 minutes. Take a bus at Nanjing South Railway Station and get off at Zaozhuang Station.