The calculated distance (air line) between Calderara di Reno and Ozzano dell'Emilia is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Ozzano dell'Emilia is certainly longer, as only the direct route (as the crow flies) between Calderara di Reno and Ozzano dell'Emilia has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles