The calculated distance (air line) between Chengzhong and Nanzhang Chengguanzhen is approximately 117 miles respectively 189 kilometers.
By car or train, the actual journey to Nanzhang Chengguanzhen is certainly longer, as only the direct route (as the crow flies) between Chengzhong and Nanzhang Chengguanzhen has been calculated here.
Air line (approximately)
189 kilometers
102 nautical miles