The calculated distance (air line) between Casalgrande and Reggio nell'Emilia is approximately 9 miles respectively 15 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 Casalgrande and Reggio nell'Emilia has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles