The calculated distance (air line) between Chlumec nad Cidlinou and Karlovy Vary is approximately 115 miles respectively 185 kilometers.
By car or train, the actual journey to Karlovy Vary is certainly longer, as only the direct route (as the crow flies) between Chlumec nad Cidlinou and Karlovy Vary has been calculated here.
Air line (approximately)
185 kilometers
100 nautical miles