The calculated distance (air line) between Les Essarts-le-Roi and Le Havre is approximately 97 miles respectively 157 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Les Essarts-le-Roi and Le Havre has been calculated here.
Air line (approximately)
157 kilometers
84 nautical miles