The calculated distance (air line) between Büyükçekmece and güngören merter is approximately 16 miles respectively 25 kilometers.
By car or train, the actual journey to güngören merter is certainly longer, as only the direct route (as the crow flies) between Büyükçekmece and güngören merter has been calculated here.
Air line (approximately)
25 kilometers
14 nautical miles