Use this free Brexit 90/180 calculator to estimate how many Schengen days you have used, how many are left, and whether a planned trip could breach the limit.
Important: Entry and exit dates are both counted as days in the Schengen Area.
1) Add your completed or booked trips
2) Choose a date to check your status
3) (Optional) Test a planned trip
What is the Brexit 90/180 day rule?
Since Brexit, most UK passport holders visiting the Schengen Area as tourists or for short business trips are subject to the 90 days in any rolling 180-day period rule. This means you cannot simply spend 90 days in one half of the year and another 90 in the next fixed half. Instead, every day is checked against the previous 180 days.
In plain terms: on any day you are in Schengen, immigration authorities can look back 179 days plus the current day. If the total number of Schengen days in that window is over 90, you are over the limit.
How to use this Brexit 90 day calculator
Step-by-step
- Add each Schengen trip with an entry date and exit date.
- Set the date you want to assess (usually today or your next travel date).
- Optionally enter a planned trip to test if it would cause a breach.
- Click Calculate to get your days used, days remaining, and compliance status.
This calculator merges overlapping date ranges automatically to avoid double-counting if trips touch or overlap.
Why the “rolling window” confuses people
The biggest source of mistakes is thinking in fixed blocks. The Schengen short-stay limit is dynamic. Every new day shifts the window forward by one day, and older days gradually drop out of the count.
Example: if you used a lot of days in spring, you may have very limited allowance in summer. But as those spring days move outside the 180-day lookback, your available days start to recover.
Common mistakes that lead to overstays
- Forgetting that both arrival and departure dates count as full days.
- Ignoring short weekend trips that still consume days.
- Mixing Schengen and non-Schengen countries incorrectly (e.g., assuming all Europe is Schengen).
- Relying on memory instead of keeping a date log.
- Assuming previous frequent travel patterns are still safe after one long trip.
Frequently asked questions
Does this calculator provide legal advice?
No. It is an informational tool to help planning. Border officers make final determinations. Always check official government and Schengen guidance before travel.
Do work visas or residency permits use this rule?
Usually, no. If you hold a valid long-stay visa or residence permit from a Schengen state, different rules may apply. This calculator is designed for short-stay 90/180 scenarios.
What if I visited before Brexit?
This tool focuses on the current post-Brexit travel pattern. For historical edge cases, transition periods, or dual nationality situations, consult official sources.
Best practices for stress-free Schengen travel
- Track every entry and exit in one spreadsheet or app.
- Recalculate before booking flights and accommodation.
- Keep evidence of onward travel and accommodation plans.
- Build a buffer (don’t plan right up to day 90).
- If in doubt, get advice from a qualified immigration specialist.
Used consistently, a Brexit 90/180 calculator can help you avoid accidental overstays, fines, future entry problems, and travel disruption.