Age Calculator
Exact age in years, months, days — plus total days lived.
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About this calculator
Official age for exams, visas and retirement is computed in completed calendar years-months-days, not by dividing days by 365.25. This calculator follows the standard calendar-borrowing method used worldwide.
Formula
Calendar arithmetic borrowing days/months — not simple ÷365, which drifts with leap years.
Frequently Asked Questions
How old is someone born on 29 February?
Legally their birthday falls on 28 Feb (or 1 Mar in some jurisdictions) in non-leap years; the calculator treats it as 1 March.
Why does 'total days' matter?
Interest calculations, warranty periods and visa durations often count exact days rather than calendar months.