The calculated distance (air line) between Neuburg an der Donau and Nürnberg is approximately 50 miles respectively 81 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Neuburg an der Donau and Nürnberg has been calculated here.
Air line (approximately)
81 kilometers
44 nautical miles