The calculated distance (air line) between Rome and Cava Dè Tirreni is approximately 141 miles respectively 226 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 Rome and Cava Dè Tirreni has been calculated here.
Air line (approximately)
226 kilometers
122 nautical miles