The calculated distance (air line) between Zaojiacheng and Beihuaidian is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Beihuaidian is certainly longer, as only the direct route (as the crow flies) between Zaojiacheng and Beihuaidian has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles