The calculated distance (air line) between Slovenj Gradec and Slovenska Bistrica is approximately 25 miles respectively 40 kilometers.
By car or train, the actual journey to Slovenska Bistrica is certainly longer, as only the direct route (as the crow flies) between Slovenj Gradec and Slovenska Bistrica has been calculated here.
Air line (approximately)
40 kilometers
22 nautical miles