The calculated distance (air line) between Piacenza and San Colombano al Lambro is approximately 13 miles respectively 22 kilometers.
By car or train, the actual journey to San Colombano al Lambro is certainly longer, as only the direct route (as the crow flies) between Piacenza and San Colombano al Lambro has been calculated here.
Air line (approximately)
22 kilometers
12 nautical miles