How many days do I have left in Türkiye?
Add every trip. Only days inside the last 180 count, and they drop out one at a time — which is why adding your trips together gives the wrong answer.
Your trips
Include anything in the last 180 days. Older trips are harmless to add — the maths ignores them.
How a day is counted isn't published. Law 6458 art. 11 gives the 90-in-180 limit and says nothing about whether your arrival and departure days both count. We count both, because that can only ever tell you that you have fewer days than you really do — never more.
Rolling or from-first-entry depends on your passport.mfa.gov.tr describes a look-back over the last 180 days; evisa.gov.tr's FAQ and some consulates say "starting from the first entry date". This page computes the look-back. Check your own nationality's entry on the MFA list before you plan to the last few days.
The border works from its own record, not your diary. Entry and exit have been held electronically since 1992. If one of your dates is a day out, so is this. Turkish citizens and foreign residents can pull the record via e-Devlet; a visitor has to ask a border-gate police unit or a Turkish mission.
A deportation decision only becomes mandatory above ten days. Below that the published position is that someone who comes to the border of their own accord and pays the fine does not receive an entry ban — and an unpaidfine reportedly blocks entry indefinitely, which is the part that doesn't improve with time.
The 90/180 rule, answered honestly
Does leaving Türkiye for a few days reset my 90 days?
No. The allowance attaches to you rather than to the trip — Law No. 6458 art. 11(2) caps stay at ninety days in every hundred and eighty. Days spent outside Türkiye do not accrue against the allowance, so a gap in the middle means fewer days of presence overall, but leaving cannot hand back days you have already spent. Re-entering does not grant a fresh ninety.
How do I count the days — does the day I arrive count?
Turkish law does not publish the answer. Law 6458 art. 11(2) and art. 10 of its Implementing Regulation give the limit and say nothing about how a day is counted, and Türkiye has no equivalent of the Schengen Borders Code's explicit rule. Every source asserting that both the arrival and departure day count is a law firm or relocation agency importing the Schengen convention. This calculator counts both, because that is the conservative direction: it can only ever tell you that you have fewer days left than you really do.
Why does adding my trips together give the wrong number?
Because only days inside the last 180 count, and they drop out one at a time rather than all at once. A reader with three trips totalling 69 days was at 25 in the window — one trip had aged out entirely and another had missed the window's edge by ten days. Ask the same question three weeks earlier and the answer changes.
Is the 180-day window rolling, or does it start at my first entry?
Official Turkish sources are not consistent. mfa.gov.tr describes the rule as ninety days within the last, or preceding, 180 days — a look-back. evisa.gov.tr's FAQ and some consulates phrase it as ninety days within 180 starting from the first entry date, which reads as a fixed window. For most nationalities the look-back is the operative regime and it is what this page computes, but the phrasing on the MFA's country list varies by passport, so check your own entry there before planning down to the last few days.
Is there an official Turkish 90/180 calculator?
No. goc.gov.tr, evisa.gov.tr and turkiye.gov.tr all restate the limit and none of them will count for you. Watch the naming trap while you look: e-ikamet.com and ikamet.com are private companies. The only official residence portal is e-ikamet.goc.gov.tr, and it has no day calculator.
What happens if I am one day over?
A deportation decision only becomes mandatory above ten days of overstay; below that you pay at the border and leave. Göç İdaresi's published position is that someone whose violation is under three months, who presents themselves at the border of their own accord before it is detected and pays the fine, does not receive an entry ban — although the wording is that a ban may not be imposed rather than shall not, officers have discretion, and we have a first-hand reader report of a ban after a short overstay. An unpaid fine is reported to block entry indefinitely, separately from any ban, and it does not lapse on its own.