The calculated distance (air line) between Grabs and Zürich (Kreis 12) is approximately 43 miles respectively 70 kilometers.
By car or train, the actual journey to Zürich (Kreis 12) is certainly longer, as only the direct route (as the crow flies) between Grabs and Zürich (Kreis 12) has been calculated here.
Air line (approximately)
70 kilometers
38 nautical miles