The calculated distance (air line) between Au and Zürich (Kreis 10) is approximately 53 miles respectively 85 kilometers.
By car or train, the actual journey to Zürich (Kreis 10) is certainly longer, as only the direct route (as the crow flies) between Au and Zürich (Kreis 10) has been calculated here.
Air line (approximately)
85 kilometers
46 nautical miles