Exact Age · Birthday Countdown · Zodiac

Age
Calculator

Find your exact age in years, months, days, hours, minutes and seconds — plus your next birthday countdown and zodiac sign.

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years old

More Than Just Your Age

Complete birthday intelligence — every detail about your life in numbers

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Birthday Countdown

See exactly how many days until your next birthday, down to the date.

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Zodiac Sign

Get your Western zodiac sign and Chinese zodiac animal automatically.

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Live Counter

Watch your age tick up in real-time — seconds, minutes, hours live.

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Any Date

Calculate age at any custom date — past, present, or future.

How It Works

Know your age precisely

1

Enter Birthday

Pick your date of birth from the date picker.

2

Set Target Date

Today auto-fills, or choose any date to calculate age at that time.

3

Calculate

Hit Calculate and instantly get your full age breakdown.

4

Explore

See zodiac, generation, day born, milestones and a live counter.

Frequently Asked Questions

How exact is the age calculation?
Extremely exact — we calculate the difference accounting for leap years and variable month lengths, giving you precise years, months, days, hours, minutes and seconds.
Can I calculate someone else's age?
Yes! Enter any date of birth and any target date. You can even calculate age at a future date — useful for checking how old you'll be on a milestone date.
What generations are supported?
We detect Silent Generation, Baby Boomers, Gen X, Millennials (Gen Y), Gen Z, and Gen Alpha based on your birth year.