The calculated distance (air line) between Rielasingen-Worblingen and Nürnberg is approximately 157 miles respectively 252 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Rielasingen-Worblingen and Nürnberg has been calculated here.
Air line (approximately)
252 kilometers
136 nautical miles