The calculated distance (air line) between Neuzeug and Klagenfurt am Wörthersee is approximately 98 miles respectively 159 kilometers.
By car or train, the actual journey to Klagenfurt am Wörthersee is certainly longer, as only the direct route (as the crow flies) between Neuzeug and Klagenfurt am Wörthersee has been calculated here.
Air line (approximately)
159 kilometers
86 nautical miles