Calwarden

I-94 Stay Limit Calculator

Estimate an I-94 stay-limit planning date from an entry date, editable authorized-stay days, and counting assumption.

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Inputs

days

Your values stay on this device.

Results

Estimated Last Day

Planning date calculated from the entered stay length and counting assumption.

Days Remaining179
Reminder Date2027-02-19

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Assumptions

  • This is a planning estimate only, not legal advice, not an official government eligibility decision, and not an official deadline determination.
  • Authorized-stay days and counting method are user-entered assumptions.
  • The calculator does not retrieve official I-94 records or current immigration rules.

Sensitivity preview

Authorized-Stay Days -10%: Estimated Last Day 2027-03-03

Authorized-Stay Days Current: Estimated Last Day 2027-03-21

Authorized-Stay Days +10%: Estimated Last Day 2027-04-08

Formula: Estimated last day = entry date + authorized-stay days - 1 if entry date counts as day one; otherwise entry date + authorized-stay days. Reminder date = estimated last day - reminder lead days.

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About this I-94 Stay Limit Calculator

This calculator is a private arithmetic worksheet for a user-entered admission date and stay-length assumption. It does not read or validate an official I-94 record.

Who this calculator is for

  • Travelers organizing a user-entered stay-limit date.
  • People comparing counting assumptions before checking official I-94 information.
  • Families or teams building non-official reminders from document dates.

When to use it

  • Estimate the last planned day of stay from an entry date and allowed-day assumption.
  • Adjust whether the entry date is counted as day one.
  • Set an early reminder using a custom lead-time threshold.

How to use this calculator

  1. Enter the entry or admission date you want to use.
  2. Enter the authorized-stay days from your own document, notice, or planning assumption.
  3. Choose whether the entry date counts as day one.
  4. Adjust the reminder lead time and review the estimated date.

Key assumptions

  • This is a planning estimate only, not legal advice, not an official government eligibility decision, and not an official deadline determination.
  • Authorized-stay days and counting method are user-entered assumptions.
  • The calculator does not retrieve official I-94 records or current immigration rules.
  • Dates and thresholds are processed locally in your browser and are not stored by Calwarden.

Accuracy and testing

Review formula sources, default test cases, assumptions, unit handling, rounding rules, and changelog for this calculator.

View accuracy page

How this calculator works

Estimated last day = entry date + authorized-stay days - 1 when entry date counts as day one, or entry date + authorized-stay days when it does not. Reminder date = estimated last day - reminder lead days.
Estimated last day = entry date + authorized-stay days - 1 if entry date counts as day one; otherwise entry date + authorized-stay days. Reminder date = estimated last day - reminder lead days.

Inputs explained

Entry date

The date you want to use as the start of the stay-counting period.

Authorized-stay days

The editable day count from your own document, notice, or planning assumption.

Count entry date as day one

A counting assumption you can toggle because counting rules can vary by context.

Reminder lead time

Your editable number of days before the estimated last day for planning.

Understanding your results

The estimated last day is only the result of your inputs and counting choice. It does not determine lawful presence, extension eligibility, visa validity, or any official I-94 deadline.

Example scenarios

Planning example

If entry is 2026-01-10, authorized-stay days is 180, and entry counts as day one, the estimated last day is 2026-07-08.

Key Features

  • Instant Calculation
  • Private & Secure
  • Mobile Optimized

Things to Keep in Mind

This calculator does not determine admission class, D/S notation, extensions, status changes, unlawful presence, grace periods, or case-specific immigration consequences.

Tips & Best Practices

  • Check the official I-94 record and any notices before relying on a date.
  • Use an earlier reminder threshold for travel booking, filings, or professional review.
  • Save the counting assumption used so the planning result can be reviewed later.

Frequently Asked Questions

Is this immigration legal advice?
No. This calculator performs date arithmetic from the values you enter. Confirm actual immigration deadlines, eligibility, and filing strategy with official instructions or a qualified immigration professional.
Does this tool check current government rules?
No. It does not look up live rules, exceptions, holidays, agency policy, grace periods, or case-specific facts. Use it as a private planning worksheet only.
Are my dates stored?
No. The calculation runs locally in your browser and does not store your travel, document, or immigration dates.
Can this replace checking my official I-94?
No. It does not connect to any government system. It only performs arithmetic from the entry date, day count, and counting assumption you enter.