The calculated distance (air line) between Ravne na Koroškem and Trbovlje is approximately 27 miles respectively 44 kilometers.
By car or train, the actual journey to Trbovlje is certainly longer, as only the direct route (as the crow flies) between Ravne na Koroškem and Trbovlje has been calculated here.
Air line (approximately)
44 kilometers
24 nautical miles