The calculated distance (air line) between Pioltello and Cassina de' Pecchi is approximately 2 miles respectively 3 kilometers.
By car or train, the actual journey to Cassina de' Pecchi is certainly longer, as only the direct route (as the crow flies) between Pioltello and Cassina de' Pecchi has been calculated here.
Air line (approximately)
3 kilometers
2 nautical miles