The calculated distance (air line) between Labarthe-sur-Lèze and Nîmes is approximately 150 miles respectively 242 kilometers.
By car or train, the actual journey to Nîmes is certainly longer, as only the direct route (as the crow flies) between Labarthe-sur-Lèze and Nîmes has been calculated here.
Air line (approximately)
242 kilometers
130 nautical miles