The calculated distance (air line) between Nové Mesto nad Váhom and Trenčín is approximately 14 miles respectively 22 kilometers.
By car or train, the actual journey to Trenčín is certainly longer, as only the direct route (as the crow flies) between Nové Mesto nad Váhom and Trenčín has been calculated here.
Air line (approximately)
22 kilometers
12 nautical miles