The calculated distance (air line) between Huaidian and Huaiyuan Chengguanzhen is approximately 128 miles respectively 205 kilometers.
By car or train, the actual journey to Huaiyuan Chengguanzhen is certainly longer, as only the direct route (as the crow flies) between Huaidian and Huaiyuan Chengguanzhen has been calculated here.
Air line (approximately)
205 kilometers
111 nautical miles