The calculated distance (air line) between Hradec Králové and Mladá Boleslav is approximately 43 miles respectively 70 kilometers.
By car or train, the actual journey to Mladá Boleslav is certainly longer, as only the direct route (as the crow flies) between Hradec Králové and Mladá Boleslav has been calculated here.
Air line (approximately)
70 kilometers
38 nautical miles