The calculated distance (air line) between Náměšť nad Oslavou and Karlovy Vary is approximately 163 miles respectively 262 kilometers.
By car or train, the actual journey to Karlovy Vary is certainly longer, as only the direct route (as the crow flies) between Náměšť nad Oslavou and Karlovy Vary has been calculated here.
Air line (approximately)
262 kilometers
142 nautical miles