The calculated distance (air line) between Nogent-le-Rotrou and Le Havre is approximately 87 miles respectively 140 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Nogent-le-Rotrou and Le Havre has been calculated here.
Air line (approximately)
140 kilometers
76 nautical miles