The calculated distance (air line) between Tekirdağ and Marmara Ereğlisi is approximately 23 miles respectively 37 kilometers.
By car or train, the actual journey to Marmara Ereğlisi is certainly longer, as only the direct route (as the crow flies) between Tekirdağ and Marmara Ereğlisi has been calculated here.
Air line (approximately)
37 kilometers
20 nautical miles