Age Calculator
Find your exact age in years, months, and days — plus total days lived, weeks, hours, western zodiac sign, and days until your next birthday.
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How to use the Age Calculator
Using this free age calculator is simple. Select your date of birth using the date picker above and click Calculate Age. The tool will instantly show your exact age broken down into years, months, and days — along with additional statistics like total weeks, total hours lived, your western zodiac sign, and how many days remain until your next birthday.
You can also use this calculator to find the age of anyone else — a family member, a friend, or even a historical figure — by simply entering their date of birth.
What this calculator shows you
- ✓Exact age in years, months, and days — The most precise breakdown of how old you are right now.
- ✓Total months, weeks, days, and hours lived — Fun statistics that show your life in different units of time.
- ✓Days until your next birthday — Count down to your special day.
- ✓Day of the week you were born — Were you born on a Monday or a Sunday?
- ✓Your Western zodiac sign — Based on your exact birth date (e.g. Aries, Scorpio, Leo).
- ✓Your Chinese zodiac animal — Based on your birth year in the 12-year cycle.
How is age calculated?
Age is calculated by subtracting the date of birth from today's date. The calculation accounts for the varying number of days in each month and leap years (366 days instead of 365). The formula used is:
Total Days = (Today − Birth) ÷ 86,400,000 ms
Total Weeks = Total Days ÷ 7
Days to Birthday = Next Birthday Date − Today