Calculate your exact age in years, months and days from your date of birth, plus the total days and hours you've been alive and the countdown to your next birthday.
Enter your date of birth. Leave “as of” blank to measure from today, or set a date to find your age at a specific point in time.
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The Age Calculator works out your exact age in years, months and days, accounting for the varying length of months and leap years. It also shows the total number of days and hours you've been alive and counts down to your next birthday.
Years, months and days are computed by subtracting the birth date from the target date and borrowing from the previous month when the day-of-month goes negative — the same method you'd use by hand, handling leap years and uneven month lengths correctly.
Yes. The day-counting uses real calendar dates, so leap days are included automatically and the year/month/day breakdown is always accurate.
The total hours figure counts complete hours since the date of birth at local noon, giving a whole-number estimate rather than to the minute.