The calculated distance (air line) between Náměšť nad Oslavou and Znojmo is approximately 25 miles respectively 40 kilometers.
By car or train, the actual journey to Znojmo is certainly longer, as only the direct route (as the crow flies) between Náměšť nad Oslavou and Znojmo has been calculated here.
Air line (approximately)
40 kilometers
22 nautical miles