The calculated distance (air line) between Appenzell and Zürich (Kreis 4) / Aussersihl is approximately 42 miles respectively 67 kilometers.
By car or train, the actual journey to Zürich (Kreis 4) / Aussersihl is certainly longer, as only the direct route (as the crow flies) between Appenzell and Zürich (Kreis 4) / Aussersihl has been calculated here.
Air line (approximately)
67 kilometers
36 nautical miles