The calculated distance (air line) between Ingenbohl and La Chaux-de-Fonds is approximately 85 miles respectively 136 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 Ingenbohl and La Chaux-de-Fonds has been calculated here.
Air line (approximately)
136 kilometers
73 nautical miles