The calculated distance (air line) between Schwyz and Zürich (Kreis 9) is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Zürich (Kreis 9) is certainly longer, as only the direct route (as the crow flies) between Schwyz and Zürich (Kreis 9) has been calculated here.
Air line (approximately)
42 kilometers
23 nautical miles