The calculated distance (air line) between Międzyzdroje and Bydgoszcz is approximately 156 miles respectively 252 kilometers.
By car or train, the actual journey to Bydgoszcz is certainly longer, as only the direct route (as the crow flies) between Międzyzdroje and Bydgoszcz has been calculated here.
Air line (approximately)
252 kilometers
136 nautical miles