The Schengen 90/180 rule, explained
A source-backed explanation of the EU short-stay rule, its rolling window, and the limits of a day-counting app.
The European Commission describes a short stay as no more than 90 days within any 180-day period. The reference period moves each day: count back 180 days from a day of stay and make sure the total does not exceed 90.
Why it is not a calendar allowance
There is no annual reset. A trip in January can still affect a trip in June if the earlier days remain inside the relevant 180-day period. Entry and exit dates generally count as days of stay, which is why a record of every stay matters.
Check the dates of the trip you want to take
Start with the intended day of entry, then look back over the preceding 180 days and add the relevant days of stay. Repeat that check for the days of a planned trip, not only its first day. A journey can appear to fit on arrival but become problematic if it extends while earlier stays are still inside the moving window.
The official calculation is only as good as the dates entered. Short breaks, same-day crossings and missing trips can matter when you are near the limit. Keep the underlying travel evidence rather than relying on a remembered total.
Important limits
The official calculator is a helping tool, not a right to stay. It is not the right calculation for every situation: a residence permit, long-stay visa, or a visa sticker with a shorter authorised period can change the answer.
Nationality, travel document, purpose and national entry rules can matter too. If the result is close or the circumstances are unusual, check with the relevant authority before travel. ETIAS, when it applies, is a separate travel-authorisation question; it does not add days to the 90/180 allowance.
How Flags helps
Flags: Schengen Calculator helps you keep a private history of stays from photo metadata and manual corrections, then see the rolling count and plan a future trip. It does not replace the official rule or a border authority. See how the app builds a history and what counts as a day.
- European Commission: Short-stay calculator reviewed 2026-07-10
- European Commission: User manual for the short-stay Schengen calculator reviewed 2026-07-09
- Apple App Store: Flags: Schengen Calculator reviewed 2026-07-10
Flags helps keep a private record of travel days and plan stays. It is not legal advice, and border authorities make the final decision.
In this section
- What counts as a day in the Schengen 90/180 rule?Entry and exit days normally count in full for the 90/180 calculation; check official guidance for visas and edge cases.
- When will ETIAS start, and does it change the 90/180 rule?ETIAS is scheduled for the final quarter of 2026; it is a separate travel authorisation and does not add Schengen days.
- What does a Schengen calculator do?What a Schengen calculator can help you count, what it cannot decide, and how to keep a usable travel record.
- Is a Schengen visa calculator the same as a 90/180 calculator?A clear distinction between counting a short stay and checking the conditions written on a visa or other travel document.
- How many Schengen days do I have left?A practical way to work out remaining Schengen days without treating a rough total as border permission.
- Does leaving Schengen reset the 90 days?Why leaving the area does not create a fresh 90-day allowance, and how the rolling reference period works.
- Which countries are in the Schengen Area?The current Schengen-country list and why a trip across several member countries uses one shared short-stay calculation.