The calculated distance (air line) between Fribourg and Zürich (Kreis 12) is approximately 79 miles respectively 127 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 Fribourg and Zürich (Kreis 12) has been calculated here.
Air line (approximately)
127 kilometers
68 nautical miles