Age Calculator
How old are you exactly? Find your age in years, months and days, plus your birth weekday and total days lived.
Choose your birth date above to see your result.
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Get Birthday Hunter: freeHow exact age is calculated
We count completed years, then completed months, then remaining calendar days. If the matching day does not exist in a shorter month, we use that month's last day. January 31 to February 28 is one calendar month in a non-leap year. February 29 to February 28 the following year counts as a completed year in this calculator.
Calendar age and elapsed time are different
Calendar days are counted by date, so daylight-saving changes do not add or remove a day. Hours and minutes start at local midnight on the date you enter. They are estimates, not your exact time alive. For the birthday countdown, February 29 means the next real February 29. This calculation is for personal planning, not an official age decision. Your date stays in your browser.
Frequently asked questions
How old am I exactly?
Enter your date of birth above and the calculator shows your exact age in years, months and days, calculated from today’s date.
How do you calculate exact age?
We subtract your birth date from today, accounting for the different number of days in each month, to give a precise years/months/days result.
Does it work for any birth date?
Choose a valid date from 1920 through today. Hours and minutes are estimates from local midnight because the tool does not ask for your birth time.
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