Age Calculator, down to the day.

Find your exact age in years, months and days. See total days and weeks lived, and how many days until your next birthday.

Date details

Enter your date of birth and an optional target date. Leave the second field as today to calculate your current age.

Your exact age.

31
Years
:
0
Months
:
18
Days
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Total Days Lived
11,341
days on Earth
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Total Weeks
1,620
weeks lived
📊
Total Months
372
months lived
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Next Birthday
347
days to go

Your exact age — years, months, days, and more

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Exact Age to the Day

Get your precise age broken down into years, months, and days — not just the year count. Useful for official documents, visa applications, and medical age verification.

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Next Birthday Countdown

See exactly how many days remain until your next birthday. Set a reminder or simply satisfy your curiosity about your upcoming celebration.

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Calculate Age on Any Date

Calculate age as of today or as of any custom "as of" date. Useful for legal age verification at a past or future date, or for eligibility checks with a specific cutoff date.


Age Calculator — FAQ

How is exact age calculated?

Exact age is determined by subtracting the date of birth from the current (or specified) date. The calculation accounts for leap years, months with different day counts, and whether the current year's birthday has already occurred. The result is expressed as complete years, remaining months, and remaining days.

Can I use this to check eligibility for age-restricted services?

Yes. Enter your date of birth and set the "as of" date to the eligibility cutoff date (e.g., 1st of the school year, or today for a passport application). The calculator instantly shows whether you meet the minimum age requirement.

What is the maximum age this calculator supports?

There is no practical upper limit. You can calculate the age of any person or historical date from the past — for example, how old a historical figure would be today, or the age of a document or artifact.