The 90/180-day rule limits how long most non-EU visitors can stay in the Schengen Area. This guide explains how to count days manually—and how our free Schengen calculator app works as a 90-day rule calculator online.
What Is the 90/180-Day Rule?
You can stay in the Schengen Area for up to 90 days within any 180-day period. This is a rolling window, not a fixed calendar year or six-month block.
90 days — maximum time in Schengen in the look-back window
180 days — how far back you count from each entry date
On every day you are in Schengen (or plan to enter), look back 180 days and add up all days spent inside the zone. The total must not exceed 90.
How to Calculate 90 Days in Europe (Step by Step)
List every Schengen entry and exit date from the last 180 days (and planned future trips).
Count each day present—including travel days when you cross the border.
From your next planned entry date, look back exactly 180 days and sum those stay days.
If the sum is 90 or less, you are within the limit; if not, delay entry or shorten the trip.
Repeat the check whenever you add a new trip—yesterday's window is not tomorrow's.
Leave, then return 10 February for 40 days (until 21 March)
Plan to enter again on 5 April
On 5 April, look back 180 days to roughly 7 October of the previous year. Add January (30) + February–March (40) = 70 days used, so you could stay up to 20 more days on that visit—unless earlier trips in the same window push you over 90.
Example: One Long Stay Near the Limit
You enter on 1 March and stay continuously for 88 days (until 27 May). You leave Schengen on 28 May. You cannot simply re-enter on 1 June—you must check the rolling 180-day window from your next entry date. Days from March still count until they fall outside the 180-day look-back.
This is why a Schengen stay calculator beats a spreadsheet for frequent travelers.
Why the 90-Day Rule Matters
Overstaying can lead to:
Fines at the border or on departure
Deportation or removal
Entry bans for future Schengen visits
Even a few days over the limit can affect future visa or ETIAS applications.
Common Mistakes When Counting Days
Calendar months — the limit is not “90 days per quarter” or per semester
Per country — France + Italy + Spain share one 90-day pool
Ignoring past trips — old entries still count until 180 days have passed
Exit day only — both entry and exit days usually count
Look back 180 days from today (or a planned entry date) and total every day in Schengen. Entry and exit days count. Stay at or under 90—or use our online calculator.
What is a 90/180 day calculator?
It is a tool that applies the rolling 180-day window to your trip history and shows remaining days. Ours is free and works as a Schengen visa day calculator for short stays.
How to work out 90 days in 180?
The window moves every day. There is no fixed start date—always recalculate from the date you plan to enter. See our how it works page for the calculator logic.
Does this apply to UK and US travelers?
Yes. Visa-free visitors (including UK and US passport holders) must follow the same 90/180 rule. See entry rules by country for ETIAS and nationality details.