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UK passport holders get 90 days in any ROLLING 180 across the whole Schengen area combined (not per country). Arrival and departure days both count. Days "come back" only as old trips age past 180 days: use the EU's official short-stay calculator with your exact dates for the definitive answer. Overstays mean fines, entry bans and stamps that follow you: this is a rough guide, not legal advice.
What The Schengen 90/180 Calculator Works Out
- Days remaining: 90 minus the days you have spent in the Schengen area in the last 180, counting arrival and departure days. The allowance covers the whole area combined, so France's days and Spain's days share the same 90.
- Planned trip verdict: whether the trip fits in what remains today, assuming none of your old days age out and no new ones roll in. If it does not, shorten it, wait for old days to pass the 180-day horizon, or look at national long-stay visas.
- How the window works: on every day of presence, look back 180 days and count; the total must not exceed 90. The window rolls daily and never resets on a calendar date, which is why "90 days, nip home, 90 more" fails and the compliant long-winter pattern is genuinely 90 in, 90 out.
- Trip start date (advanced): anchors the calculation to your real arrival date so the key dates below are real calendar dates. Without one, today is used.
- Old days that age out (advanced): days from earlier trips that will pass the 180-day horizon before you arrive, or while you are away, come back into the allowance. Enter them from your log of dates in and out, since memory reconstructs holidays worse than border databases do.
- Days available on arrival and longest stay (advanced): the remaining allowance on the day you land, and the longest stay from that date once days ageing out mid-trip are included, with the latest legal exit date.
- Days left when you get home (advanced): what remains after the trip, and the date on which this trip's own days stop counting, 180 days after the last one.
- Reserve check (advanced): keeps back days for a later trip in the same window and says whether this trip leaves enough. Each traveller has their own count; this sketch assumes everyone on the itinerary has the same history.
- Key dates table (advanced): the start of the window that counts, trip start and return, latest exit, when the trip ages out and the earliest date a clean 90-day stay would be possible. The EU's Entry/Exit System logs crossings biometrically, so the borderline day is genuinely not worth it; beyond 90 days the answers are national visas, and tax residency questions arrive around 183 days.
Definitive tool: EU short-stay calculator.