Age Calculator

Exact age between two dates — years, months, days.

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26years4months26days
Total months
316
Total weeks
1,377
Total days
9,643

What this does

Age Calculator computes the exact age between two dates — years, months, days — and also the totals in months, weeks, and days. Useful for forms, milestones, and quick fact-checks.

When to use it

  • Calculating exact age on a specific date for forms or applications
  • Finding how many days until or since a birthday or anniversary
  • Computing tenure or duration between two dates
  • Settling 'how old were you when…' debates

Frequently asked

Does it account for leap years?

Yes — calculations use real calendar dates, so February 29 is correctly handled.

Why are 'years, months, days' different from 'total days / 365'?

Years aren't all 365 days (leap years exist), and months aren't all the same length. The calendar-aware count is the accurate way to express age.