The calculated distance (air line) between Rosice and Ústí nad Labem is approximately 146 miles respectively 235 kilometers.
By car or train, the actual journey to Ústí nad Labem is certainly longer, as only the direct route (as the crow flies) between Rosice and Ústí nad Labem has been calculated here.
Air line (approximately)
235 kilometers
127 nautical miles