The calculated distance (air line) between Vetralla and Reggio nell'Emilia is approximately 180 miles respectively 289 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 Vetralla and Reggio nell'Emilia has been calculated here.
Air line (approximately)
289 kilometers
156 nautical miles