The calculated distance (air line) between Lengnau and Zürich (Kreis 11) is approximately 57 miles respectively 91 kilometers.
By car or train, the actual journey to Zürich (Kreis 11) is certainly longer, as only the direct route (as the crow flies) between Lengnau and Zürich (Kreis 11) has been calculated here.
Air line (approximately)
91 kilometers
49 nautical miles