The calculated distance (air line) between Vojnik and Ravne na Koroškem is approximately 23 miles respectively 38 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 Vojnik and Ravne na Koroškem has been calculated here.
Air line (approximately)
38 kilometers
20 nautical miles