The calculated distance (air line) between Neumarkt in der Oberpfalz and Frankfurt am Main is approximately 137 miles respectively 220 kilometers.
By car or train, the actual journey to Frankfurt am Main is certainly longer, as only the direct route (as the crow flies) between Neumarkt in der Oberpfalz and Frankfurt am Main has been calculated here.
Air line (approximately)
220 kilometers
119 nautical miles