The calculated distance (air line) between Chêne-Bourg and Zürich (Kreis 12) is approximately 140 miles respectively 226 kilometers.
By car or train, the actual journey to Zürich (Kreis 12) is certainly longer, as only the direct route (as the crow flies) between Chêne-Bourg and Zürich (Kreis 12) has been calculated here.
Air line (approximately)
226 kilometers
122 nautical miles