The calculated distance (air line) between Zürich (Kreis 7) / Fluntern and Chur is approximately 59 miles respectively 94 kilometers.
By car or train, the actual journey to Chur is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 7) / Fluntern and Chur has been calculated here.
Air line (approximately)
94 kilometers
51 nautical miles