Enter your date of birth to instantly see your exact age, total days and hours lived, next birthday countdown, and zodiac sign.
Use the Age Calculator
Enter Details
Results
Enter your date of birth and click Calculate Age.
Summary
Enter your date of birth to instantly see your exact age, total days and hours lived, next birthday countdown, and zodiac sign.
How it works
Enter your date of birth.
Optionally enter a custom end date (defaults to today).
Click "Calculate Age" to see your exact age.
View the stats panel for total days, hours, minutes, and your next birthday.
Use cases
Calculate exact age for official documents or applications.
Find out how many days until your next birthday.
Calculate the age between two historical dates.
Discover your zodiac sign.
Frequently Asked Questions
It computes exact years, months, and days using a clamped civil-anniversary convention, and calculates total elapsed days via Gregorian Julian Day Numbers for daylight-saving immunity.
Yes. Enter your birth date and set a custom "Calculate to" date to find the age at any point in time.
The calculation is based on midnight-to-midnight civil calendar days, so the hour and minute counts reflect full calendar days elapsed, independent of daylight saving time shifts.
This calculator uses a clamped civil-anniversary convention. In non-leap years, February 29 birthdays map to February 28 across exact age, total months, birthday banner, and countdown (for example, 2000-02-29 through 2023-02-28 is exactly 23 years, 0 months, and 0 days). Similarly, dates clamp to the final day of shorter target months, so 2024-01-31 through 2024-02-29 is counted as 0 years, 1 month, and 0 days.
The zodiac sign is determined by the month and day of birth according to the standard Western astrological calendar (e.g., Aries: March 21 – April 19).
The calculator accepts any valid date on or after your birth date as the end date, including future dates, and calculates the age at that point.
