The calculated distance (air line) between Wernberg-Köblitz and Nürnberg is approximately 49 miles respectively 79 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Wernberg-Köblitz and Nürnberg has been calculated here.
Air line (approximately)
79 kilometers
43 nautical miles