The calculated distance (air line) between Šmarje pri Jelšah and Novo Mesto is approximately 34 miles respectively 54 kilometers.
By car or train, the actual journey to Novo Mesto is certainly longer, as only the direct route (as the crow flies) between Šmarje pri Jelšah and Novo Mesto has been calculated here.
Air line (approximately)
54 kilometers
29 nautical miles