Age Calculator
Calculate exact age, countdowns & date differences to the day.
Pick your date of birth to begin.
Your age is
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Months
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Days
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🎂 Next birthday
✨ Fun facts
Calculate exact age, countdowns & date differences to the day.
Most age calculators just spit out a number of years. This one gives you the full picture — your exact age in years, months and days, plus totals in months, weeks, days, hours and minutes, a countdown to your next birthday, and a few fun facts — all updating instantly and entirely in your browser.
Handles leap years and varying month lengths properly, so the day count is always right.
See exactly how many days until your next birthday and which weekday it falls on.
Not just today — find your age (or anyone's) at any past or future date.
Discover the weekday you were born and your zodiac sign.
Age is the time elapsed from your date of birth to the chosen "age at" date. We compute full years first, then remaining months, then days — accounting for leap years and the actual number of days in each month, which is why our day totals match official calculations.
Yes. Set the "Age at date" field to any date to find the age at that moment, past or future.
Yes — February 29 birthdays and leap-year day counts are handled correctly.
No. Everything is computed locally; nothing is sent or saved anywhere.