The calculated distance (air line) between Kopřivnice and Mladá Boleslav is approximately 154 miles respectively 249 kilometers.
By car or train, the actual journey to Mladá Boleslav is certainly longer, as only the direct route (as the crow flies) between Kopřivnice and Mladá Boleslav has been calculated here.
Air line (approximately)
249 kilometers
134 nautical miles