The calculated distance (air line) between Groß-Enzersdorf and Sankt Pölten is approximately 42 miles respectively 68 kilometers.
By car or train, the actual journey to Sankt Pölten is certainly longer, as only the direct route (as the crow flies) between Groß-Enzersdorf and Sankt Pölten has been calculated here.
Air line (approximately)
68 kilometers
37 nautical miles