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Age Calculator

Quick answer

This calculator computes your exact age in years, months, and days from your birth date, with total days, hours and a next-birthday countdown.

Figures are estimates from this calculator’s standard formula — adjust the inputs in the tool below for your exact number.

How the Age Calculator Works

age = (end.year − birth.year) : (end.month − birth.month) : (end.day − birth.day), borrowing a month when days go negative

Age is the calendar difference between the birth date and the target date: year from year, month from month, day from day. When the day count would go negative the calculator borrows the length of the previous month, and a negative month count borrows twelve months from the year. Leap years and February 29 birthdays are handled automatically. Example: born June 15, 1990, the age on October 16, 2026 is 36 years, 4 months, 1 day.

  1. 1

    Enter Values

    Enter the required values in the fields below.

  2. 2

    Adjust Settings

    Set the required dates and time periods.

  3. 3

    View Results

    Click the "Calculate" button to see the result instantly.

FAQs

How accurate is this calculator?

This calculator uses standard verified formulas to provide accurate and reliable results.

Does the calculator support different calendars?

Yes, the calculator supports Gregorian, Hijri, and other calendars.