The calculated distance (air line) between Zofingen and Zürich (Kreis 9) is approximately 26 miles respectively 42 kilometers.
By car or train, the actual journey to Zürich (Kreis 9) is certainly longer, as only the direct route (as the crow flies) between Zofingen and Zürich (Kreis 9) has been calculated here.
Air line (approximately)
42 kilometers
22 nautical miles