The calculated distance (air line) between Pfaffenhofen an der Roth and Nürnberg is approximately 87 miles respectively 139 kilometers.
By car or train, the actual journey to Nürnberg is certainly longer, as only the direct route (as the crow flies) between Pfaffenhofen an der Roth and Nürnberg has been calculated here.
Air line (approximately)
139 kilometers
75 nautical miles