The calculated distance (air line) between Saint-Cyr-sur-Mer and Nîmes is approximately 81 miles respectively 131 kilometers.
By car or train, the actual journey to Nîmes is certainly longer, as only the direct route (as the crow flies) between Saint-Cyr-sur-Mer and Nîmes has been calculated here.
Air line (approximately)
131 kilometers
70 nautical miles