The calculated distance (air line) between Gümüşhacıköy and Çankaya is approximately 140 miles respectively 226 kilometers.
By car or train, the actual journey to Çankaya is certainly longer, as only the direct route (as the crow flies) between Gümüşhacıköy and Çankaya has been calculated here.
Air line (approximately)
226 kilometers
122 nautical miles