The calculated distance (air line) between Altdorf and Zürich (Kreis 12) is approximately 36 miles respectively 58 kilometers.
By car or train, the actual journey to Zürich (Kreis 12) is certainly longer, as only the direct route (as the crow flies) between Altdorf and Zürich (Kreis 12) has been calculated here.
Air line (approximately)
58 kilometers
32 nautical miles