The calculated distance (air line) between Salerno and Cava Dè Tirreni is approximately 5 miles respectively 8 kilometers.
By car or train, the actual journey to Cava Dè Tirreni is certainly longer, as only the direct route (as the crow flies) between Salerno and Cava Dè Tirreni has been calculated here.
Air line (approximately)
8 kilometers
4 nautical miles