The calculated distance (air line) between Bystřice nad Pernštejnem and Chomutov is approximately 142 miles respectively 228 kilometers.
By car or train, the actual journey to Chomutov is certainly longer, as only the direct route (as the crow flies) between Bystřice nad Pernštejnem and Chomutov has been calculated here.
Air line (approximately)
228 kilometers
123 nautical miles