Age Calculator
Calculate your exact age in years, months, and days.
Your Age
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Years, Months, Days
Time Zone
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Date (Formatted)
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Timestamp (ms)
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Total Days Lived
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Next Birthday
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Days Until Birthday
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Understanding Age Calculation
Calculating age seems simple, but calendars are complex! Our age calculator uses precise calendar logic to handle months with different lengths (28, 30, or 31 days) and leap years (February 29th) correctly.
The most common method, which we use, is to count the full years first, then the full months remaining, and finally the days. This gives you the standard "X Years, Y Months, Z Days" format used legally and casually.
Frequently Asked Questions
Age is calculated by determining the full years between dates, then the full months remaining
after subtracting years, and finally the days remaining.
Yes! The calculator correctly identifies leap years (where February has 29 days) and factors
that into the total day count and age calculation.