Calculate your exact age in years, months, days, hours, minutes, and seconds. Enter your date of birth and optionally add a precise time for exact results.
How To Use This Free Age Calculator
Enter your date of birth in the first field. The calculator defaults the second field to today’s date and instantly shows your age.
For precise results, click “+ Add time” under either date to add hour and minute precision. The “Now” button on the end date fills in today’s date and current time automatically. The “Today” button on either field quickly sets it to today’s date.
Your age is displayed as years, months, and days, followed by alternative representations: total months, weeks, days, hours, minutes, and seconds. The calculator also shows your next birthday with the number of days until then.
Frequently Asked Questions
How do I calculate my exact age in days?
Enter your date of birth and the calculator instantly shows your total age in days, along with years, months, weeks, hours, minutes, and seconds.
How old am I in months?
The age calculator shows your age in total months and remaining days as one of its alternative representations, alongside the standard years/months/days breakdown
How many hours old am I?
Enter your birth date (and optionally your birth time for precision) to see your exact age in hours. For the most accurate result, add your birth time and click “Now” on the end date.
How do I calculate age between two specific dates?
Change the “Age at the Date of” field to any date you like. The calculator works with any two dates, not just today.
How many seconds have I been alive?
The calculator shows your total age in seconds. Add your birth time and click “Now” for the most precise second count.







