What “90 days within any 180-day period” actually means
This is the rule that limits how long anyone who doesn’t need a visa for short stays (or who’s travelling on a short-stay Schengen visa) can spend in the Schengen area: a maximum of 90 days within any rolling 180-day window.
The most common mistake is thinking it means “90 days per calendar year.” It doesn’t. It’s a rolling window: it doesn’t reset on January 1st, it’s recalculated every single day based on the 180 days before that specific date. That means the number of Schengen days you have left literally changes every time a day passes.
How it’s calculated exactly
The official method is simple to state, even if it’s not always intuitive to apply by hand: for any day you want to check, count back 180 days on the calendar and add up every day you spent inside the Schengen area during that window. If the total doesn’t exceed 90, you’re compliant on that day.
A nuance that gets overlooked very often, and where most people get it wrong: the day of entry and the day of exit each count as a full day of presence, not half a day, and not “only nights count.” If you enter on a Monday and leave the following Sunday, that’s 7 days of Schengen presence, not 6, even though you only slept 6 nights in the Schengen area.
To avoid counting by hand, use our Schengen 90/180 calculator: it saves your trips in your own browser (nothing is sent to any server) and flags a planned trip that would go over the limit at any point during the stay, not just on entry, and it also includes a planning mode that works out the first date you could travel if the one you had in mind doesn’t fit.
Two worked examples with concrete dates
Example 1: two trips within the limit. A traveller spends 60 days in France, from 10 January to 10 March 2026 (both dates included). Afterwards, from 15 April to 4 May 2026, they spend 20 days in Italy. On the last day of that second trip (4 May 2026), the 180-day window looking back reaches to 6 November 2025, so the January-March trip to France falls entirely inside that window, so it does count: 60 + 20 = 80 days used on 4 May. Compliant, with 10 days of margin still available on that date.
Example 2: legal on entry, out of compliance mid-stay. A traveller has spent 85 days in the Schengen area between 1 October and 24 December 2025. They enter again on 25 December 2025: that first day they’ve used 86 days (85 + 1), within the limit, so the entry itself is legal. But if they stay until 15 January 2026, the sixth day of this new stay (30 December 2025) already adds up to 91 days, because the previous 85 days are still fully inside the 180-day window and haven’t started ageing out yet. The trip becomes an overstay mid-way through, not at the moment of entry, which is why it’s worth checking every day of the trip, not just the entry date.
I’ve already spent 90 days in Europe: when can I come back?
It depends on when you used those days, because there is no “reset” date. Each day that passes, the day that falls 180 days back drops out of the count and, if it was a day inside Schengen, gives you one back. So the short answer, when the 90 days were consecutive, is this: you need to spend another 90 days outside the Schengen area before you can enter again, and from then on you can stay up to 90 consecutive days once more.
An example worked out with our calculator: someone who was in Schengen from 1 January to 31 March 2026 (90 days, both included) cannot enter again until 30 June 2026. On that day the 180-day window starts on 2 January, so only 89 days of that trip still count, leaving one free for the day of entry. From 30 June they can stay until 27 September, because every day spent inside pushes one day of the earlier trip out of the window.
If the 90 days were split across several trips
Days leave the window in the order you spent them, so you can come back sooner, but only for shorter stays. Another example worked out with the calculator: a traveller spends 1 February to 2 March 2026 (30 days) and 1 May to 29 June 2026 (60 days) in Schengen. By 29 June all 90 days are used.
- They can enter again on 31 July, when 1 February drops out of the window, but only until 29 August: 30 days, the ones the first trip hands back as it expires.
- For a stay of 60 or 90 days in a row they have to wait until 28 September, when the days of the second trip start to expire.
Leaving the Schengen area does not reset the count
A few days in the UK, Ireland, Cyprus, Morocco or the Balkans do not put the counter back to zero. Those days do not add to it, but they do not wipe out the days you have already used either: those stay in the 180-day window until they expire by date. Example: 1 March to 29 April 2026 in Spain (60 days), ten days in London, then back from 10 to 31 May (22 days). On 31 May the traveller has used 82 days and has 8 left.
Which countries are in Schengen, and which territories are left out even though their country is a member, is covered in our guide to Schengen countries.
Days that do not count
Article 6 of the Schengen Borders Code leaves out of the count any period of stay authorised under a residence permit or a national long-stay visa. If you lived in a Schengen country on a residence permit, those days do not use up your 90; days you spend in other Schengen countries as a visitor do.
For your own case, enter your trips in the Schengen 90/180 calculator, which works out the first date you could return for the length of stay you need.
Which countries count and which don’t
The Schengen area has 29 full member countries: Austria, Belgium, Bulgaria, Croatia, Czechia, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Italy, Latvia, Liechtenstein, Lithuania, Luxembourg, Malta, the Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, and Switzerland.
Three nuances that often get overlooked:
- Ireland is an EU country but not part of the Schengen area: it has its own entry rules, independent of this 90/180-day count.
- Cyprus is in the EU, but the Council has not yet lifted its internal border controls, so it does not count as Schengen and days there do not add up. Its accession is under way, so check its status before you travel.
- Bulgaria and Romania have been full members since 1 January 2025, so they do count.
Microstates, overseas territories and cases such as Svalbard or the Faroe Islands are covered in our guide to Schengen countries.
What happens if you overstay
The consequences of an overstay are applied by whichever country you’re in when it’s detected, not necessarily the first country you entered the Schengen area through. They can include fines, a re-entry ban for a set period, or an outright denial on a future trip. The specific rules vary by member state, so there’s no single figure that applies across the whole Schengen area. We cover this in the guide to Schengen overstay; for the border entry-denial process there’s a separate dedicated guide.
Special cases
- Holders of a long-stay national visa from a specific Schengen country: they’re not governed by this 90/180 count, but by that visa’s own conditions.
- Legal residents in a Schengen country: also not subject to this limit within their country of residence.
- Dual nationality: if you enter on the passport of a Schengen (or EU/EEA) country, this rule simply doesn’t apply to you on that trip.
Guide verified 20/10/2026. Sources: European Commission’s Migration and Home Affairs portal (official calculation method and Schengen country list; status of Bulgaria, Romania and Cyprus, page last updated 27/05/2025); Regulation (EU) 2016/399 (Schengen Borders Code), Article 6 (counting 90 days in 180, and periods under a residence permit or long-stay visa left out). The dates in the examples were worked out with our 90/180 calculator.