The calculated distance (air line) between Affoltern am Albis and Zürich (Kreis 12) is approximately 11 miles respectively 17 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 Affoltern am Albis and Zürich (Kreis 12) has been calculated here.
Air line (approximately)
17 kilometers
9 nautical miles