Age Calculator - Calculate Your Exact Age
Calculate your exact age in years, months, days, hours, minutes, and seconds with our free Age Calculator.
What Is an Age Calculator?
The Age Calculator can determine the age or interval between two dates. The calculated age will be displayed in years, months, weeks, days, hours, minutes, and seconds. It features a live counter that updates every second, along with calendars showing the birth month and the selected date's month.
How to Use the Age Calculator
- Enter your birth date — Use the date picker to select your date of birth.
- Enter the "as of" date — Select the date at which you want to calculate the age (defaults to today).
- Click "Calculate" — The tool computes your exact age in years, months, days, hours, minutes, and seconds.
- Watch it live — The counter updates automatically every second when the "as of" date is today.
How Age Calculation Works
The calculation subtracts the birth date from the "as of" date. For months and days, the calculator handles cases where the current month has fewer days than the birth month. Leap years are handled correctly. The live counter continuously updates the seconds, minutes, hours, days, months, and years as time passes.
Practical Uses
- Birthday planning: Know exactly how old you'll be on your next birthday
- Forms and applications: Verify age for official documents
- Health tracking: Age is a factor in many health calculations
- Education: Understand age requirements for school and programs
Frequently Asked Questions
Does the age calculator handle leap years?
Yes, the calculator correctly handles leap years and February 29 dates.
What if I enter a future date?
If the date of birth is after the as-of date, the calculator does not show a negative age. It shows a validation message and asks you to choose a valid date.
Is the age calculation accurate to the second?
Yes, the calculation is exact to the second using your local time zone. The live counter updates every second.
Can I use this age calculator offline?
Yes, once the page loads, the age calculator works offline without an internet connection.