The calculated distance (air line) between Micheldorf in Oberösterreich and Klagenfurt am Wörthersee is approximately 87 miles respectively 140 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 Micheldorf in Oberösterreich and Klagenfurt am Wörthersee has been calculated here.
Air line (approximately)
140 kilometers
76 nautical miles