The calculated distance (air line) between Épinay-sous-Sénart and Rouen is approximately 82 miles respectively 133 kilometers.
By car or train, the actual journey to Rouen is certainly longer, as only the direct route (as the crow flies) between Épinay-sous-Sénart and Rouen has been calculated here.
Air line (approximately)
133 kilometers
72 nautical miles