The calculated distance (air line) between Beaufort-en-Vallée and Le Havre is approximately 143 miles respectively 230 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Beaufort-en-Vallée and Le Havre has been calculated here.
Air line (approximately)
230 kilometers
124 nautical miles