The calculated distance (air line) between Wollerau and La Chaux-de-Fonds is approximately 89 miles respectively 144 kilometers.
By car or train, the actual journey to La Chaux-de-Fonds is certainly longer, as only the direct route (as the crow flies) between Wollerau and La Chaux-de-Fonds has been calculated here.
Air line (approximately)
144 kilometers
77 nautical miles