How it works
The 90/180 day rule
Since Brexit, UK citizens are third-country nationals in the Schengen Area. You can visit for up to 90 days in any 180-day period. But there's no fixed reset date — the window is rolling.
What "rolling" actually means
Every single day, the rule looks back exactly 180 days from today. It counts how many of those days you were inside Schengen. That number must never exceed 90. Old days only drop out of the window after 180 days have passed.
This means using 80 days in one block then leaving doesn't give you a fresh 90 — you need to wait for those days to age out of the 180-day lookback.
How days are counted
Both your entry day and exit day count as days in Schengen. Enter on Monday, leave on Wednesday? That's 3 days used — not 2.
Schengen ≠ EU
Some EU countries aren't in Schengen (Ireland, Romania, Bulgaria, Cyprus). Some non-EU countries are (Norway, Switzerland, Iceland, Liechtenstein). Time spent outside Schengen — including those countries — doesn't count towards your 90 days.
What happens if you overstay?
Border agents can check your entry/exit stamps. Overstaying can lead to a fine, a ban from Schengen, or a flag on your record. It's not worth the risk.
Disclaimer
This tool is a guide, not legal advice. Always verify with official sources. Carry documentation of your travel dates. Rules can change — when in doubt, use the EU's official Schengen short-stay calculator.