The calculated distance (air line) between Cerklje na Gorenjskem and Kočevje is approximately 46 miles respectively 74 kilometers.
By car or train, the actual journey to Kočevje is certainly longer, as only the direct route (as the crow flies) between Cerklje na Gorenjskem and Kočevje has been calculated here.
Air line (approximately)
74 kilometers
40 nautical miles