The calculated distance (air line) between Kostel and Ravne na Koroškem is approximately 72 miles respectively 115 kilometers.
By car or train, the actual journey to Ravne na Koroškem is certainly longer, as only the direct route (as the crow flies) between Kostel and Ravne na Koroškem has been calculated here.
Air line (approximately)
115 kilometers
62 nautical miles