The calculated distance (air line) between Castellarano and Sant'Agata Bolognese is approximately 22 miles respectively 35 kilometers.
By car or train, the actual journey to Sant'Agata Bolognese is certainly longer, as only the direct route (as the crow flies) between Castellarano and Sant'Agata Bolognese has been calculated here.
Air line (approximately)
35 kilometers
19 nautical miles