The calculated distance (air line) between Château-Renault and La Ferté-Saint-Aubin is approximately 49 miles respectively 78 kilometers.
By car or train, the actual journey to La Ferté-Saint-Aubin is certainly longer, as only the direct route (as the crow flies) between Château-Renault and La Ferté-Saint-Aubin has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles