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