Age calculator

Count an exact age from a date of birth. Leave the second date on today, or move it to any day.

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Counting notes

How is the age counted?: Full years since the date of birth, then full months, then the remaining days. The calendar is the Gregorian calendar used on most birth records. The page does not ask where the person was born.
What happens on 29 February?: In a year with no 29 February, that birthday is observed on 28 February. The result says when the next birthday uses that day.
Which clock is used for today?: Today is the date set on your device. The count uses calendar dates, not a time of birth, so hours are left out.
Are the dates stored?: The dates stay in this browser. A copied link contains them, so share a link only when that is fine.

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