The calculated distance (air line) between Lengnau and Zürich (Kreis 7) is approximately 58 miles respectively 94 kilometers.
By car or train, the actual journey to Zürich (Kreis 7) is certainly longer, as only the direct route (as the crow flies) between Lengnau and Zürich (Kreis 7) has been calculated here.
Air line (approximately)
94 kilometers
51 nautical miles