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Passport Expiry Reminder Calculator

Work out passport expiry reminder instantly with clear inputs, formula shown and shareable results.

About Passport Expiry Reminder Calculator

Many countries require six months of passport validity beyond the date of entry, so an expiry date well in the future can still be refused. A passport expiring 12 August 2027 has 8.6 months left on 20 November 2026 - sufficient for a six month rule, but it would fail from mid-February 2027 onwards.

Formulas

Validity at travel

months = (expiry - travel date) / 30.4375

Renewal deadline

renew by = expiry - required validity

Worked example

With the default values below, Passport Expiry Reminder Calculator returns Validity Remaining On The Travel Date of 8.7. Change any input above and every figure here is recalculated in your browser.

Inputs used

Passport expiry date
2027-08-12
Intended travel date
2026-11-20
Validity required on entryminimum 0 months
6 months

Results

Validity Remaining On The Travel Date
8.7 months
Entry Requirement Check
Meets the validity requirement
Renew By This Date To Keep Cover
2027-02-10
Days Of Validity On The Travel Date
265

Step by step

  1. 1Values used
  2. 2Validity at travel
  3. 3Renewal deadline
  4. 4Validity Remaining On The Travel Date= 8.7 months
  5. 5Entry Requirement Check= Meets the validity requirement
  6. 6Renew By This Date To Keep Cover= 2027-02-10
  7. 7Days Of Validity On The Travel Date= 265

Assumptions and limits

  • The result is derived only from the 3 inputs listed above. Anything not among them is not part of the calculation.
  • In particular, this calculator does not take inflation, tax, fees or charges or compounding frequency into account.
  • Figures are rounded for display to 1 decimal place, so totals built from several rounded parts can differ slightly from the unrounded arithmetic.

How these calculators are built and tested is described on the Methodology page. If a figure looks wrong, please report it.

Frequently Asked Questions

Why do countries require six months validity?

So that a traveller who overstays or is delayed still holds a valid document, avoiding the consular burden of an expired-passport case.

Does unused validity carry over on renewal?

Some countries add up to nine months of remaining validity to the new passport; others do not. Check before renewing early.

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