The calculated distance (air line) between Pontremoli and Reggio nell'Emilia is approximately 43 miles respectively 70 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 Pontremoli and Reggio nell'Emilia has been calculated here.
Air line (approximately)
70 kilometers
38 nautical miles