The calculated distance (air line) between Trezzo sull'Adda and Treviglio is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Treviglio is certainly longer, as only the direct route (as the crow flies) between Trezzo sull'Adda and Treviglio has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles