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