The calculated distance (air line) between Lomnice nad Popelkou and Karlovy Vary is approximately 112 miles respectively 180 kilometers.
By car or train, the actual journey to Karlovy Vary is certainly longer, as only the direct route (as the crow flies) between Lomnice nad Popelkou and Karlovy Vary has been calculated here.
Air line (approximately)
180 kilometers
97 nautical miles