The calculated distance (air line) between Le Pecq and Paris 20 Ménilmontant is approximately 14 miles respectively 22 kilometers.
By car or train, the actual journey to Paris 20 Ménilmontant is certainly longer, as only the direct route (as the crow flies) between Le Pecq and Paris 20 Ménilmontant has been calculated here.
Air line (approximately)
22 kilometers
12 nautical miles