The calculated distance (air line) between Maltepe and Merter Keresteciler is approximately 15 miles respectively 24 kilometers.
By car or train, the actual journey to Merter Keresteciler is certainly longer, as only the direct route (as the crow flies) between Maltepe and Merter Keresteciler has been calculated here.
Air line (approximately)
24 kilometers
13 nautical miles