Physical Presence Calculator: Do You Qualify for Citizenship?
One of the most critical eligibility requirements for US citizenship is physical presence. You must have been physically present in the United States for a minimum number of days. Here's how to figure out if you qualify.
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Open Physical Presence Calculator →The Physical Presence Requirement
For the standard 5-year path to citizenship, you must have been physically present in the United States for at least 30 months (913 days) out of the 5 years immediately preceding your N-400 filing date.
For the 3-year path (married to a US citizen), the requirement is 18 months (548 days) out of the preceding 3 years.
"Physical presence" means you were actually in the United States. Days spent outside the US count against you, regardless of the reason for travel.
How to Calculate Your Physical Presence
The calculation is straightforward in concept:
- Determine your statutory period (5 years or 3 years before your filing date)
- List every trip outside the US during that period
- Add up the total days you were outside the US
- Subtract that total from the total days in the statutory period
- The result is your physical presence in days
Common Pitfalls
Counting Departure and Return Days
The day you depart the US counts as a day outside the US. The day you return counts as a day in the US. So if you left on January 1 and returned on January 10, that's 9 days outside the US (Jan 1 through Jan 9) and 1 day in the US (Jan 10).
Forgetting Short Trips
Even a quick day trip to Canada or Mexico counts. Those days add up, especially for people living near the border who cross frequently.
Confusing Physical Presence with Continuous Residence
Physical presence and continuous residence are separate requirements. You can meet the physical presence requirement while still breaking continuous residence (a single trip over 6 months can do this). Check our continuous residence calculator to verify both requirements.
What If You Don't Qualify Yet?
If your calculation shows you're below the 30-month threshold, don't file yet. Wait until enough time has passed that your physical presence exceeds the requirement. You can use our calculator to determine the earliest date you'll be eligible.
The Hardest Part: Knowing Your Exact Travel Dates
The physical presence calculation is only as good as the travel dates you put in. If you're missing trips or have inaccurate dates, your calculation will be wrong — potentially leading you to file before you're actually eligible, or to delay filing unnecessarily.
TripTrace automatically reconstructs your travel history from credit card transactions and flight records, giving you accurate dates to plug into the calculator with confidence.