The calculated distance (air line) between Dolný Kubín and Topoľčany is approximately 68 miles respectively 110 kilometers.
By car or train, the actual journey to Topoľčany is certainly longer, as only the direct route (as the crow flies) between Dolný Kubín and Topoľčany has been calculated here.
Air line (approximately)
110 kilometers
59 nautical miles