The calculated distance (air line) between Bottmingen and Zürich (Kreis 7) is approximately 48 miles respectively 78 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 Bottmingen and Zürich (Kreis 7) has been calculated here.
Air line (approximately)
78 kilometers
42 nautical miles