The calculated distance (air line) between Náměšť nad Oslavou and Chomutov is approximately 150 miles respectively 241 kilometers.
By car or train, the actual journey to Chomutov is certainly longer, as only the direct route (as the crow flies) between Náměšť nad Oslavou and Chomutov has been calculated here.
Air line (approximately)
241 kilometers
130 nautical miles