The calculated distance (air line) between Kranjska Gora and Slovenska Bistrica is approximately 86 miles respectively 138 kilometers.
By car or train, the actual journey to Slovenska Bistrica is certainly longer, as only the direct route (as the crow flies) between Kranjska Gora and Slovenska Bistrica has been calculated here.
Air line (approximately)
138 kilometers
74 nautical miles