The calculated distance (air line) between Lenart v Slov. Goricah and Ravne na Koroškem is approximately 41 miles respectively 66 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 Lenart v Slov. Goricah and Ravne na Koroškem has been calculated here.
Air line (approximately)
66 kilometers
36 nautical miles