How Old Am I? Age Calculator
How old am I? Calculate your exact age in years, months, days, hours and seconds – live, from your birth date and optional birth time.
Enter your birth date and, optionally, your time of birth. The calculation runs live using your own device's current date and time – nothing is sent to a server.
Pro tips
- With a reference date you get your age on any date – past or future, e.g. for registrations, cut-off dates or anniversaries.
- Without a time of birth, the calculation starts at 00:00 on your birthday.
- Date and time come from your browser, i.e. from your local time zone.
- Born on 29 February? In non-leap years your birthday is counted as 28 February.
Frequently Asked Questions
How do I calculate my exact age?
Enter your date of birth; the calculator compares it with your device's current date and time and shows your age in years, months, days, hours, minutes and seconds.
Where does the current time come from?
From your browser, i.e. your device's clock and time zone. Nothing is sent to a server.
Do I have to enter my time of birth?
No. Without it, the calculation starts at 00:00 on your birthday. With it, hours, minutes and seconds are accurate to the minute.
When is my birthday if I was born on 29 February?
In leap years on 29 February; in all other years the calculator uses 28 February.
How do I calculate my age on a specific date?
Enter the date you want in the "Reference date" field – in the past or the future. The calculator then shows your age on exactly that day.
How many days old am I?
The number of days you have lived is shown right below your age – along with weeks, hours, minutes and seconds.