The calculated distance (air line) between Saint-Jean-de-la-Ruelle and Le Havre is approximately 136 miles respectively 218 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-Jean-de-la-Ruelle and Le Havre has been calculated here.
Air line (approximately)
218 kilometers
118 nautical miles