The calculated distance (air line) between Büyükçekmece and Marmara Ereğlisi is approximately 33 miles respectively 53 kilometers.
By car or train, the actual journey to Marmara Ereğlisi is certainly longer, as only the direct route (as the crow flies) between Büyükçekmece and Marmara Ereğlisi has been calculated here.
Air line (approximately)
53 kilometers
29 nautical miles