The calculated distance (air line) between Dillingen an der Donau and Nürnberg is approximately 66 miles respectively 106 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Dillingen an der Donau and Nürnberg has been calculated here.
Air line (approximately)
106 kilometers
57 nautical miles