The calculated distance (air line) between Tianjin and Beidaihehaibin is approximately 133 miles respectively 215 kilometers.
By car or train, the actual journey to Beidaihehaibin is certainly longer, as only the direct route (as the crow flies) between Tianjin and Beidaihehaibin has been calculated here.
Air line (approximately)
215 kilometers
116 nautical miles