The calculated distance (air line) between La Roque-d'Anthéron and Nîmes is approximately 48 miles respectively 78 kilometers.
By car or train, the actual journey to Nîmes is certainly longer, as only the direct route (as the crow flies) between La Roque-d'Anthéron and Nîmes has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles