The calculated distance (air line) between Monte Porzio Catone and Montecompatri is approximately 1 miles respectively 2 kilometers.
By car or train, the actual journey to Montecompatri is certainly longer, as only the direct route (as the crow flies) between Monte Porzio Catone and Montecompatri has been calculated here.
Air line (approximately)
2 kilometers
1 nautical miles