The calculated distance (air line) between Marmara Ereğlisi and güngören merter is approximately 49 miles respectively 78 kilometers.
By car or train, the actual journey to güngören merter is certainly longer, as only the direct route (as the crow flies) between Marmara Ereğlisi and güngören merter has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles