The calculated distance (air line) between Laudun-l'Ardoise and Nîmes is approximately 24 miles respectively 38 kilometers.
By car or train, the actual journey to Nîmes is certainly longer, as only the direct route (as the crow flies) between Laudun-l'Ardoise and Nîmes has been calculated here.
Air line (approximately)
38 kilometers
21 nautical miles