The calculated distance (air line) between Česká Kamenice and Královské Vinohrady is approximately 50 miles respectively 80 kilometers.
By car or train, the actual journey to Královské Vinohrady is certainly longer, as only the direct route (as the crow flies) between Česká Kamenice and Královské Vinohrady has been calculated here.
Air line (approximately)
80 kilometers
43 nautical miles