The calculated distance (air line) between Reggiolo and Reggio nell'Emilia is approximately 18 miles respectively 28 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 Reggiolo and Reggio nell'Emilia has been calculated here.
Air line (approximately)
28 kilometers
15 nautical miles