The calculated distance (air line) between Lenart v Slov. Goricah and Vrhnika is approximately 85 miles respectively 136 kilometers.
By car or train, the actual journey to Vrhnika is certainly longer, as only the direct route (as the crow flies) between Lenart v Slov. Goricah and Vrhnika has been calculated here.
Air line (approximately)
136 kilometers
74 nautical miles