The calculated distance (air line) between Sontheim an der Brenz and Nürnberg is approximately 72 miles respectively 116 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Sontheim an der Brenz and Nürnberg has been calculated here.
Air line (approximately)
116 kilometers
62 nautical miles