The calculated distance (air line) between Rouen and Caudebec-lès-Elbeuf is approximately 12 miles respectively 19 kilometers.
By car or train, the actual journey to Caudebec-lès-Elbeuf is certainly longer, as only the direct route (as the crow flies) between Rouen and Caudebec-lès-Elbeuf has been calculated here.
Air line (approximately)
19 kilometers
10 nautical miles