The calculated distance (air line) between Kysucké Nové Mesto and Piešťany is approximately 65 miles respectively 105 kilometers.
By car or train, the actual journey to Piešťany is certainly longer, as only the direct route (as the crow flies) between Kysucké Nové Mesto and Piešťany has been calculated here.
Air line (approximately)
105 kilometers
57 nautical miles