We calculated distance with our calculator and with the help of International map agencies and distance between Stuttgart and Neuchâtel is 120 km.
If you go from Stuttgart to Neuchâtel, with normal traffic conditions and non-stop driving, you reach final destination in 1,5 hours.
Depend on car conditions and fuel quality, to travel from Stuttgart to Neuchâtel with car transport, you need 7 gallons gallons of petrol, which will cost around 10 $ with average prices.