The calculated distance (air line) between Üsküdar and Merter Keresteciler is approximately 7 miles respectively 11 kilometers.
By car or train, the actual journey to Merter Keresteciler is certainly longer, as only the direct route (as the crow flies) between Üsküdar and Merter Keresteciler has been calculated here.
Air line (approximately)
11 kilometers
6 nautical miles