The calculated distance (air line) between Tremblay-en-France and Paris 16 Passy is approximately 15 miles respectively 23 kilometers.
By car or train, the actual journey to Paris 16 Passy is certainly longer, as only the direct route (as the crow flies) between Tremblay-en-France and Paris 16 Passy has been calculated here.
Air line (approximately)
23 kilometers
13 nautical miles