The calculated distance (air line) between Postbauer-Heng and Nürnberg is approximately 16 miles respectively 26 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Postbauer-Heng and Nürnberg has been calculated here.
Air line (approximately)
26 kilometers
14 nautical miles