The calculated distance (air line) between Töss (Kreis 4) and Zürich (Kreis 7) is approximately 9 miles respectively 15 kilometers.
By car or train, the actual journey to Zürich (Kreis 7) is certainly longer, as only the direct route (as the crow flies) between Töss (Kreis 4) and Zürich (Kreis 7) has been calculated here.
Air line (approximately)
15 kilometers
8 nautical miles