The calculated distance (air line) between Fagnano Olona-Bergoro and Monza is approximately 21 miles respectively 34 kilometers.
By car or train, the actual journey to Monza is certainly longer, as only the direct route (as the crow flies) between Fagnano Olona-Bergoro and Monza has been calculated here.
Air line (approximately)
34 kilometers
18 nautical miles