The calculated distance (air line) between Trezzo sull'Adda and Gorgonzola is approximately 7 miles respectively 12 kilometers.
By car or train, the actual journey to Gorgonzola is certainly longer, as only the direct route (as the crow flies) between Trezzo sull'Adda and Gorgonzola has been calculated here.
Air line (approximately)
12 kilometers
6 nautical miles