The calculated distance (air line) between Calenzano and Reggio nell'Emilia is approximately 64 miles respectively 103 kilometers.
By car or train, the actual journey to Reggio nell'Emilia is certainly longer, as only the direct route (as the crow flies) between Calenzano and Reggio nell'Emilia has been calculated here.
Air line (approximately)
103 kilometers
56 nautical miles