The calculated distance (air line) between Acilia-Castel Fusano-Ostia Antica and Genzano di Roma is approximately 19 miles respectively 30 kilometers.
By car or train, the actual journey to Genzano di Roma is certainly longer, as only the direct route (as the crow flies) between Acilia-Castel Fusano-Ostia Antica and Genzano di Roma has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles