The calculated distance (air line) between Mirna Peč and Slovenska Bistrica is approximately 44 miles respectively 70 kilometers.
By car or train, the actual journey to Slovenska Bistrica is certainly longer, as only the direct route (as the crow flies) between Mirna Peč and Slovenska Bistrica has been calculated here.
Air line (approximately)
70 kilometers
38 nautical miles