The calculated distance (air line) between Marmara Ereğlisi and Tepecik is approximately 31 miles respectively 50 kilometers.
By car or train, the actual journey to Tepecik is certainly longer, as only the direct route (as the crow flies) between Marmara Ereğlisi and Tepecik has been calculated here.
Air line (approximately)
50 kilometers
27 nautical miles