The calculated distance (air line) between Karlsdorf-Neuthard and Nürnberg is approximately 117 miles respectively 188 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Karlsdorf-Neuthard and Nürnberg has been calculated here.
Air line (approximately)
188 kilometers
102 nautical miles