Naturalization Physical Presence Calculator
Add your trips outside the U.S. to see whether you meet the 913-day (5-year) or 548-day (3-year, married to a U.S. citizen) physical-presence requirement — and get warnings for long absences.
Enter each departure and return date. Leaving and returning days both count as days present.
The physical presence requirement
To naturalize, you must have been physically present in the United States for a minimum number of days during the years right before you apply:
- 5-year rule: at least 913 days (30 months) out of 1,825.
- 3-year rule (married to and living with a U.S. citizen for 3 years): at least 548 days (18 months) out of 1,095.
This is separate from continuous residence. A single trip of 6 months or more can disrupt continuous residence (a rebuttable presumption), and a trip of 1 year or more generally breaks it — even if your day count still passes.
FAQ
Which period do I count?
The 5 years (or 3 years) immediately before you file Form N-400. You may file up to 90 days early.
Is the day I leave/return counted?
Yes — both the departure day and the return day count as days physically present in the U.S.
Is this official?
No. This is a free estimate to help you plan. USCIS makes the final determination. Confirm with USCIS Policy Manual Part D or an immigration attorney.
This free tool estimates physical-presence days for U.S. naturalization under INA §316(a)/§319(a). It is not legal advice and does not determine continuous residence, good moral character, or eligibility. Edge cases (military service, time abroad with a U.S.-citizen spouse, etc.) differ. Verify with the USCIS Policy Manual or a licensed immigration attorney.