Age Calculator
To find out exactly how old you are, enter your date of birth below. This free age calculator shows your precise age in years, months and days, plus your total days, weeks and hours lived, the day you were born on, and your zodiac sign.
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Get Birthday Hunter — freeHow exact age is calculated
The calculator subtracts your birth date from today’s date, correctly handling months of different lengths and leap years, so the years/months/days figure is precise. It all runs in your browser — nothing is stored.
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?
Yes — any past date works, and the tool also shows your total days, weeks, hours lived and an estimated heartbeat count.