The calculated distance (air line) between Nová Paka and Mladá Boleslav is approximately 28 miles respectively 44 kilometers.
By car or train, the actual journey to Mladá Boleslav is certainly longer, as only the direct route (as the crow flies) between Nová Paka and Mladá Boleslav has been calculated here.
Air line (approximately)
44 kilometers
24 nautical miles