The calculated distance (air line) between Šmartno pri Litiji and Kočevje is approximately 28 miles respectively 45 kilometers.
By car or train, the actual journey to Kočevje is certainly longer, as only the direct route (as the crow flies) between Šmartno pri Litiji and Kočevje has been calculated here.
Air line (approximately)
45 kilometers
24 nautical miles