The calculated distance (air line) between Teufen and Zürich (Kreis 3) is approximately 41 miles respectively 67 kilometers.
By car or train, the actual journey to Zürich (Kreis 3) is certainly longer, as only the direct route (as the crow flies) between Teufen and Zürich (Kreis 3) has been calculated here.
Air line (approximately)
67 kilometers
36 nautical miles