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About the Age Calculator
This age calculator determines your exact age from a birth date. It reports the result in years, months, days, hours, and minutes, and it also calculates the time between any two dates, upcoming birthdays, and age differences in several formats.
The tool uses standard chronological age calculation, the same calendar-based method used on official forms: it counts complete years first, then remaining months, then leftover days, and it converts the totals into hours and minutes. You enter a birth date and an end date, which defaults to today. The calculator accounts for leap years and varying month lengths automatically. For a birthday countdown, set the end date to a future date and read the days remaining.
- Enter your birth date in the date field.
- Set the end date or leave it as today.
- Read your age breakdown and switch formats as needed.