The calculated distance (air line) between Castelló de la Plana and Benicàssim is approximately 8 miles respectively 12 kilometers.
By car or train, the actual journey to Benicàssim is certainly longer, as only the direct route (as the crow flies) between Castelló de la Plana and Benicàssim has been calculated here.
Air line (approximately)
12 kilometers
7 nautical miles