How to use the schengen 90/180 day calculator
- Pick the date to check in Count the 180 days ending on. The window is that day and the 179 days before it.
- Enter each stay as an entry date and an exit date. Use Add a stay for more rows, and leave a row blank to ignore it.
- Choose whether to count the entry day and the exit day. Rules for these two days vary, so use the setting that matches the rule that applies to you.
- Read the result: days counted in the window, days left out of 90, and the date the oldest counted day stops counting. Under More options, enter a planned next entry to see the longest stay that keeps you within 90 days.
Formula
Window = the check date and the 179 days before it
Days used = number of different days of presence inside the window
Days left = 90 - days used (zero if you are at or over 90)
A day counts once even if two stays cover it. A counted day stops counting on the day that is 180 days after it.
Three stays and one check date
Suppose you were present from January 10 to February 8, 2026 (30 days), from April 1 to April 20 (20 days) and from June 15 to July 14 (30 days), counting both the entry and exit days. For the window ending August 1, 2026, the window starts on February 3. The first stay contributes only February 3 to 8, which is 6 days, so the total is 6 + 20 + 30 = 56 days used and 34 left.
On August 2 the window starts February 4, so one more day drops out and 55 are used. If you plan to enter on August 1 and every day counts, you can stay 40 days, until September 9, 2026, before your count would pass 90. Entering on September 1 allows 60 days, and entering on December 1 allows the full 90.
How a rolling window works
The 90 days in any 180 days rule is checked on every day, not once per trip. For each day you are present, look back over that day and the 179 days before it, count the days you were present in that span, and the total must not exceed 90. Because the window moves one day at a time, days you used long ago slowly stop counting.
The planned entry feature applies the same test to each day of a hypothetical stay and stops at the last day that stays within 90. It assumes you are present every day from the entry date and counts all of them.
What this calculator does not know
It only counts the dates you type. It does not know which countries count, whether you need a visa, whether another rule or permit applies to you, or how a border officer will treat your entry and exit days, and the counting of those two days varies. It is not legal advice. Check the rules that apply to you with the official authorities before you travel, and keep your own records of your dates.
For other date questions, try the days between dates calculator, the date calculator or the business days calculator.
Assumptions and limits
- The count uses calendar days and ignores time zones and time of day.
- Every stay needs an entry date and an exit date. A stay can last one day.
- Dates between 1900 and 2200 are accepted and a single stay can last up to 3,660 days.
- The planned stay is calculated as if you are present on every day from your planned entry date.
Frequently asked questions
How do I count 90 days in any 180 days?
Take the date you want to check, look back over that day and the 179 days before it, and count the days you were present. A total of 90 or less is within the limit, and the tool does this for you.
Do the entry and exit days count?
Practice and interpretation vary, so the tool lets you choose. It counts both days by default, which is the more cautious setting. Confirm the rule that applies to you with the official authorities.
When do my old days stop counting?
A counted day leaves the window 180 days after it. The result shows this date for the oldest counted day, which is when you start to get a day back.
Can this tell me if I am allowed to travel?
No. It is date arithmetic only. It does not know your nationality, visa, permits or the countries that apply, and it is not legal advice.