The calculated distance (air line) between Büyükçekmece and Çerkezköy is approximately 36 miles respectively 57 kilometers.
By car or train, the actual journey to Çerkezköy is certainly longer, as only the direct route (as the crow flies) between Büyükçekmece and Çerkezköy has been calculated here.
Air line (approximately)
57 kilometers
31 nautical miles