The calculated distance (air line) between Cento and Casalecchio di Reno is approximately 18 miles respectively 28 kilometers.
By car or train, the actual journey to Casalecchio di Reno is certainly longer, as only the direct route (as the crow flies) between Cento and Casalecchio di Reno has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles