The calculated distance (air line) between Stuttgart and Zürich (Kreis 3) / Alt-Wiedikon is approximately 103 miles respectively 165 kilometers.
By car or train, the actual journey to Zürich (Kreis 3) / Alt-Wiedikon is certainly longer, as only the direct route (as the crow flies) between Stuttgart and Zürich (Kreis 3) / Alt-Wiedikon has been calculated here.
Air line (approximately)
165 kilometers
89 nautical miles