The calculated distance (air line) between Châteauneuf-les-Martigues and Toulon is approximately 42 miles respectively 68 kilometers.
By car or train, the actual journey to Toulon is certainly longer, as only the direct route (as the crow flies) between Châteauneuf-les-Martigues and Toulon has been calculated here.
Air line (approximately)
68 kilometers
37 nautical miles