The calculated distance (air line) between Gerasdorf bei Wien and Bad Vöslau is approximately 26 miles respectively 41 kilometers.
By car or train, the actual journey to Bad Vöslau is certainly longer, as only the direct route (as the crow flies) between Gerasdorf bei Wien and Bad Vöslau has been calculated here.
Air line (approximately)
41 kilometers
22 nautical miles