Age Calculator
Find your exact age in years, months, and days from your date of birth, plus the totals in months, weeks, days, hours, minutes, and live-ticking seconds. See the days until your next birthday, your zodiac and Chinese zodiac, and the age between any two dates. Free and instant, right in your browser.
How to Calculate Your Age
Enter Your Date of Birth
Pick your birth date. The results appear instantly, no button needed.
Set the Date to Calculate On
Leave it on today, or choose any past or future date to find age between two dates.
Read Your Results
See your exact age, totals down to seconds, days until your next birthday, and your zodiac signs.
Calculate Your Exact Age, Down to the Second
Enter your date of birth and this age calculator shows your exact age in years, months, and days, worked out with real calendar math that accounts for leap years and different month lengths. Below that you get the same age expressed as total months, total weeks, total days, hours, minutes, and a live count of seconds that keeps ticking. It answers the questions people actually type: how old am I in days, what is my age in months and days, and how many days until my next birthday.
There is more than a number. The tool shows the days until your next birthday, your western zodiac sign with its date range, and your Chinese zodiac animal. You can also change the “calculate age on” date to any day, past or future, to find the age between two dates, handy for working out someone’s age on a specific event. Everything runs in your browser, so your date of birth is never uploaded or stored, and there is no signup.
Why Use This Age Calculator?
Exact Age in Years, Months, Days
Get your precise age from your date of birth, calculated with correct calendar math including leap years, not a rough estimate.
Total Days, Hours, and Live Seconds
See your age as total months, weeks, days, hours, and minutes, plus a seconds counter that ticks up in real time.
Days Until Your Next Birthday
A built-in birthday countdown shows exactly how many days are left until your next birthday.
Zodiac and Chinese Zodiac
Instantly see your zodiac sign by date of birth with its date range, and your Chinese zodiac animal for the birth year.
Age Between Any Two Dates
Change the target date to any day, past or future, to calculate age on a specific date or the gap between two dates.
Free, Instant, Private
Results appear the moment you enter a date. Everything runs in your browser, so your date of birth is never uploaded, and there is no signup.
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Frequently Asked Questions
Exact age, birthdays, zodiac, and privacy, answered.
How do I calculate my exact age in years, months, and days?
Enter your date of birth in the calculator above and it instantly shows your exact age in years, months, and days. The math accounts for leap years and different month lengths, so the result is precise, not rounded.
How many days until my next birthday?
The tool includes a birthday countdown that shows exactly how many days are left until your next birthday, based on today's date and your date of birth. It updates automatically as the date changes.
How do I find my age in days or seconds?
Along with years, months, and days, the calculator shows your total age in months, weeks, days, hours, and minutes, plus a live seconds counter that keeps ticking. So you can see exactly how many days or seconds old you are.
What is my zodiac sign by date of birth?
The calculator shows your western zodiac sign with its date range and your Chinese zodiac animal automatically, based on the date of birth you enter. No extra lookup needed.
Can I calculate the age between two dates?
Yes. Change the "calculate age on" field to any date, past or future, instead of today. The tool then works out the exact age or time difference between the two dates.
Is the age calculator free and private?
Yes. It is completely free with no signup, and every calculation runs in your browser. Your date of birth is never uploaded to a server or stored anywhere.