The calculated distance (air line) between Neuhofen an der Krems and Klagenfurt am Wörthersee is approximately 105 miles respectively 168 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 Neuhofen an der Krems and Klagenfurt am Wörthersee has been calculated here.
Air line (approximately)
168 kilometers
91 nautical miles