The calculated distance (air line) between Zürich (Kreis 7) / Fluntern and Baar is approximately 13 miles respectively 21 kilometers.
By car or train, the actual journey to Baar is certainly longer, as only the direct route (as the crow flies) between Zürich (Kreis 7) / Fluntern and Baar has been calculated here.
Air line (approximately)
21 kilometers
11 nautical miles