The calculated distance (air line) between Titisee-Neustadt and Nürnberg is approximately 169 miles respectively 272 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Titisee-Neustadt and Nürnberg has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles