The calculated distance (air line) between Nogent-sur-Oise and Le Havre is approximately 107 miles respectively 173 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-sur-Oise and Le Havre has been calculated here.
Air line (approximately)
173 kilometers
93 nautical miles