The calculated distance (air line) between Pont-Sainte-Maxence and Le Havre is approximately 113 miles respectively 182 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Pont-Sainte-Maxence and Le Havre has been calculated here.
Air line (approximately)
182 kilometers
98 nautical miles