The calculated distance (air line) between Bottmingen and Zürich (Kreis 9) is approximately 44 miles respectively 70 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 Bottmingen and Zürich (Kreis 9) has been calculated here.
Air line (approximately)
70 kilometers
38 nautical miles