🎂 Age Calculator
Enter your birth date; your age and related details are calculated automatically.
Exact age
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Total days
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Total weeks
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Total hours
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Total minutes
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Next birthday
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Zodiac sign
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Chinese zodiac
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The Chinese zodiac is based on the Gregorian year; people born before the lunar new year may have a different animal. A lunar / nominal-age version is planned.
About age calculation
This tool calculates your exact (legal) age by the Gregorian calendar: you gain a year on each birthday. The “X years X months X days” breakdown accounts for varying month lengths and leap years. The next-birthday countdown is the number of days from today to your next birthday.
Everything runs in your browser; your birth date is never uploaded or stored on a server.