The calculated distance (air line) between Isola di Capo Rizzuto and Salerno is approximately 170 miles respectively 274 kilometers.
By car or train, the actual journey to Salerno is certainly longer, as only the direct route (as the crow flies) between Isola di Capo Rizzuto and Salerno has been calculated here.
Air line (approximately)
274 kilometers
148 nautical miles