The calculated distance (air line) between La Chaux-de-Fonds and Zürich (Kreis 10) is approximately 81 miles respectively 131 kilometers.
By car or train, the actual journey to Zürich (Kreis 10) is certainly longer, as only the direct route (as the crow flies) between La Chaux-de-Fonds and Zürich (Kreis 10) has been calculated here.
Air line (approximately)
131 kilometers
71 nautical miles