The calculated distance (air line) between Rýmařov and Mladá Boleslav is approximately 110 miles respectively 177 kilometers.
By car or train, the actual journey to Mladá Boleslav is certainly longer, as only the direct route (as the crow flies) between Rýmařov and Mladá Boleslav has been calculated here.
Air line (approximately)
177 kilometers
95 nautical miles