The calculated distance (air line) between Crépy-en-Valois and Le Havre is approximately 126 miles respectively 203 kilometers.
By car or train, the actual journey to Le Havre is certainly longer, as only the direct route (as the crow flies) between Crépy-en-Valois and Le Havre has been calculated here.
Air line (approximately)
203 kilometers
110 nautical miles