Age Calculator - Calculate Exact Age in Years, Months, Days Online
Accurately calculate your exact chronological age in years, months, weeks, days, hours, plus your zodiac sign and birthday countdown.
This tool runs in your browser.
Your result will appear here.
How to use
- 01Select your birth date including year, month, and day in the picker.
- 02The calculator automatically computes chronological age, total days lived, and zodiac signs.
- 03View the countdown to your next birthday and copy detailed stats in one click.
FAQ
How is chronological age accurately calculated?
Age is calculated by subtracting your exact birth date from today's date, accounting precisely for leap years, differing month lengths, and timezones.
Does the calculator account for leap years and leap days?
Yes. The calculation engine rigorously handles 366-day leap years, ensuring your cumulative living days and total hours are mathematically exact.
Is my personal birth date recorded or stored anywhere?
No. The date parsing and arithmetic happen entirely within your local browser sandbox. No personal data is transmitted over the network.