The calculated distance (air line) between Oberriet and Zürich (Kreis 10) is approximately 50 miles respectively 81 kilometers.
By car or train, the actual journey to Zürich (Kreis 10) is certainly longer, as only the direct route (as the crow flies) between Oberriet and Zürich (Kreis 10) has been calculated here.
Air line (approximately)
81 kilometers
44 nautical miles