The calculated distance (air line) between Geislingen an der Steige and Nürnberg is approximately 81 miles respectively 130 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Geislingen an der Steige and Nürnberg has been calculated here.
Air line (approximately)
130 kilometers
70 nautical miles