The calculated distance (air line) between Sancaktepe and Merter Keresteciler is approximately 18 miles respectively 29 kilometers.
By car or train, the actual journey to Merter Keresteciler is certainly longer, as only the direct route (as the crow flies) between Sancaktepe and Merter Keresteciler has been calculated here.
Air line (approximately)
29 kilometers
16 nautical miles