Check if you qualify for United States citizenship. Enter your permit dates and we'll calculate your qualifying days, flag any gaps, and forecast your eligibility date.
913
Days required
5 yr
Qualifying window
🇺🇸 United States · Standard naturalisation route
How United States citizenship works
30 months physical presence in 5 years (18 months for spouses of US citizens)
🧮 Calculate my United States citizenship eligibility
Permit / residence periods
🔗 Check your eligibility on the main calculator
The CitizenshipCalculator.com main tool supports United States alongside Ireland, UK, Canada, USA, Australia and New Zealand — with AI document scanning, Document Vault, travel tracker and eligibility forecasting all in one place.
Data sourced from official Irish government publications. Not legal advice — verify at irishimmigration.ie. CitizenshipCalculator.com is not affiliated with the Irish Government.