The calculated distance (air line) between Şereflikoçhisar and Polatlı is approximately 87 miles respectively 140 kilometers.
By car or train, the actual journey to Polatlı is certainly longer, as only the direct route (as the crow flies) between Şereflikoçhisar and Polatlı has been calculated here.
Air line (approximately)
140 kilometers
75 nautical miles