The calculated distance (air line) between Piacenza and Quinzano d'Oglio is approximately 24 miles respectively 38 kilometers.
By car or train, the actual journey to Quinzano d'Oglio is certainly longer, as only the direct route (as the crow flies) between Piacenza and Quinzano d'Oglio has been calculated here.
Air line (approximately)
38 kilometers
21 nautical miles