The calculated distance (air line) between Mannheim and Neumarkt in der Oberpfalz is approximately 136 miles respectively 218 kilometers.
By car or train, the actual journey to Neumarkt in der Oberpfalz is certainly longer, as only the direct route (as the crow flies) between Mannheim and Neumarkt in der Oberpfalz has been calculated here.
Air line (approximately)
218 kilometers
118 nautical miles