About 500 kilometers. The easiest way for me to take is for you to take the expressway from Weifang to Jinan. You must know how to get there, and then go from Jinan to Dezhou. Take Jinan Ring Expressway north. In Texas, you can tell them in Beijing and Shanghai. Look at the road signs, pass through Dongguang Botou, then go to Cangzhou, and meet at Baocang Expressway from Cangzhou. Tell Levin after Renqiu.