Grosseto to Rome trains might be a good value for money solution: travelling in Italy by train is often rather cheap and faster than taking a bus indeed Trains leave from Grosseto and arrive at Roma Termini every 60 minutes on average. If travelling with Trenitalia, you need to know the Grosseto to Rome train schedule: the first train leaves at 06:19, while the last ride is at 21:30. A Grosseto to Rome train cost about 13.05 €. But how long is the train ride from Grosseto to Rome? Your journey takes about 2 hours on average. Trenitalia offers 14 direct trains between these two cities. Thanks to Trenitalia, offers, you can save on your trip from Grosseto to Rome and find low cost tickets starting from 9 €!