We would advise allowing for around 50-100 euros per day, do you have to spend this exact amount every day? No. Different factors will come into play, for example, one of the days you may want to do a tour that costs around 15-20 euros, but you still need to allow money for eating, public transport etc.

Budgeting for an Interrail adventure in 2026 requires balancing the upfront cost of the Interrail Pass with daily operational expenses. First, account for the pass itself, which can range from €200 to over €700 depending on duration and age (Youth vs. Adult). A critical "hidden" cost is seat reservations; while many local trains are free with the pass, high-speed trains in France, Italy, and Spain (like the TGV or Frecciarossa) and overnight sleeper trains can cost between €10 and €100 per segment. For daily spending, a "shoestring" traveler should budget roughly €60–€80 per day, covering hostel beds, supermarket meals, and city transit, while a more comfortable "mid-range" budget is €120–€150 per day to include private rooms and sit-down dinners. Eastern Europe (Poland, Hungary, Romania) remains significantly cheaper than Western Europe (Switzerland, Norway, France), so your route choice will heavily influence your final bill. Additionally, always set aside a "buffer fund" of at least €300 for emergencies, missed connections, or that inevitable spontaneous night out in a city like Berlin or Prague that you didn't see coming.