The calculated distance (air line) between Klášterec nad Ohří and České Budějovice is approximately 113 miles respectively 183 kilometers.
By car or train, the actual journey to České Budějovice is certainly longer, as only the direct route (as the crow flies) between Klášterec nad Ohří and České Budějovice has been calculated here.
Air line (approximately)
183 kilometers
99 nautical miles