The calculated distance (air line) between Saint-Julien-de-Concelles and Le Havre is approximately 169 miles respectively 272 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Saint-Julien-de-Concelles and Le Havre has been calculated here.
Air line (approximately)
272 kilometers
147 nautical miles