The calculated distance (air line) between Canet-en-Roussillon and Nîmes is approximately 104 miles respectively 167 kilometers.
By car or train, the actual journey to Nîmes is certainly longer, as only the direct route (as the crow flies) between Canet-en-Roussillon and Nîmes has been calculated here.
Air line (approximately)
167 kilometers
90 nautical miles