The calculated distance (air line) between Spišská Nová Ves and Trenčín is approximately 114 miles respectively 184 kilometers.
By car or train, the actual journey to Trenčín is certainly longer, as only the direct route (as the crow flies) between Spišská Nová Ves and Trenčín has been calculated here.
Air line (approximately)
184 kilometers
99 nautical miles