The calculated distance (air line) between Bad Königshofen im Grabfeld and Nürnberg is approximately 64 miles respectively 104 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Bad Königshofen im Grabfeld and Nürnberg has been calculated here.
Air line (approximately)
104 kilometers
56 nautical miles