The calculated distance (air line) between Cergy-Pontoise and Paris 17 Batignolles-Monceau is approximately 15 miles respectively 25 kilometers.
By car or train, the actual journey to Paris 17 Batignolles-Monceau is certainly longer, as only the direct route (as the crow flies) between Cergy-Pontoise and Paris 17 Batignolles-Monceau has been calculated here.
Air line (approximately)
25 kilometers
13 nautical miles