Age Calculator: Know Your Exact Age
Ever wondered exactly how old you are—down to the day, hour, or minute? Our age calculator provides comprehensive age information including years, months, days, total days lived, weeks, hours, and even minutes since your birth. Plus, discover your birth weekday, zodiac sign, and countdown to your next birthday.
The calculator also includes an age difference feature—compare any two dates to find the exact difference. Useful for determining age gaps between people, calculating how long until an event, or finding time between historical dates. For more date calculations, see our Date Difference Calculator.
How Age Is Calculated
Age calculation considers calendar months and days, not just 365-day years. If today is March 15 and you were born January 20, 1990, you're counted as 34 years, 1 month, and 25 days—accounting for varying month lengths and leap years. The display updates in real-time as time passes.
Your Zodiac Sign
Based on your birthdate, we display your Western zodiac sign. Zodiac signs are determined by the sun's position at your birth, dividing the year into 12 roughly 30-day periods, each associated with different personality traits in astrological tradition.
FAQ
Why do months have different lengths in age calculation?
Calendar months range from 28-31 days. The calculator uses actual calendar months, so "1 month old" means from the 15th of one month to the 15th of the next, regardless of days in between.
How is the age difference calculated?
By finding the absolute difference between two dates in total days, then converting to years, months, and remaining days for readability.