The calculated distance (air line) between Nürnberg and Limburg an der Lahn is approximately 149 miles respectively 240 kilometers.
By car or train, the actual journey to Limburg an der Lahn is certainly longer, as only the direct route (as the crow flies) between Nürnberg and Limburg an der Lahn has been calculated here.
Air line (approximately)
240 kilometers
130 nautical miles