The calculated distance (air line) between Cologno al Serio 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 Cologno al Serio and Treviglio has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles