The calculated distance (air line) between Castelló de la Plana and Torreblanca is approximately 21 miles respectively 33 kilometers.
By car or train, the actual journey to Torreblanca is certainly longer, as only the direct route (as the crow flies) between Castelló de la Plana and Torreblanca has been calculated here.
Air line (approximately)
33 kilometers
18 nautical miles