The calculated distance (air line) between Marmara Ereğlisi and Uşak is approximately 176 miles respectively 284 kilometers.
By car or train, the actual journey to Uşak is certainly longer, as only the direct route (as the crow flies) between Marmara Ereğlisi and Uşak has been calculated here.
Air line (approximately)
284 kilometers
153 nautical miles