The calculated distance (air line) between Cormeilles-en-Parisis and Le Havre is approximately 101 miles respectively 163 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Cormeilles-en-Parisis and Le Havre has been calculated here.
Air line (approximately)
163 kilometers
88 nautical miles