The calculated distance (air line) between Sulzbach-Rosenberg and Nürnberg is approximately 30 miles respectively 49 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Sulzbach-Rosenberg and Nürnberg has been calculated here.
Air line (approximately)
49 kilometers
26 nautical miles