The calculated distance (air line) between Langhirano and Reggio nell'Emilia is approximately 19 miles respectively 30 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 Langhirano and Reggio nell'Emilia has been calculated here.
Air line (approximately)
30 kilometers
16 nautical miles