The calculated distance (air line) between Carry-le-Rouet and Montpellier is approximately 67 miles respectively 108 kilometers.
By car or train, the actual journey to Montpellier is certainly longer, as only the direct route (as the crow flies) between Carry-le-Rouet and Montpellier has been calculated here.
Air line (approximately)
108 kilometers
58 nautical miles