Most trains will have eight wheels per car in total, so the number of wheels on the entire train will depend on the number of cars in the train itself. Trains are typically between 65 and 200 cars in length, meaning they might have anywhere from 520 to 1,600 wheels or more.
However, some trains don’t have wheels at all. The Maglev train is based on magnetic force rather than wheels and rails, so the train actually hovers above the track through electromagnetic levitation!