Don't forget to buy food and drinks in advance if you need them: train stations do not always have shops, while onboard cafés are not always available and often very expensive.
With such a long journey, you could take into account travelling by plane, which is not necessarily more expensive. Doing so, you will shorten the distances and you will be able to enjoy more time in Grenoble.
What are the departure and arrival stations in Warsaw and Grenoble?
Trains leave Warsaw from WARSZAWA WSCHODNIA. and arrive at Grenoble.
How long to you need to get to Grenoble by train?
The trains running between Warsaw and Grenoble take 23 hours and 37 minutes. The first train leaves at 13:02, whereas the last one is at 13:02