The calculated distance (air line) between Calderara di Reno and Zola Predosa is approximately 6 miles respectively 9 kilometers.
By car or train, the actual journey to Zola Predosa is certainly longer, as only the direct route (as the crow flies) between Calderara di Reno and Zola Predosa has been calculated here.
Air line (approximately)
9 kilometers
5 nautical miles