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Age Calculator
Calculate your exact age from a birth date — down to years, months, days, hours, and minutes.
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How to use Age Calculator
- 1
Enter your date of birth.
- 2
Optionally set the target date (defaults to today).
- 3
See your age down to the day.
Why use Age Calculator?
- Handles leap years correctly.
- Shows next birthday countdown.
- Works with any time zone.
Common use cases
- Check age for a form.
- Count down to a birthday.
- Calculate someone's exact age on a historical date.
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About Age Calculator
Calculating an exact age is trickier than it looks because of leap years and uneven month lengths. Xevon Tools' Age Calculator handles all of it — enter a birth date and optional target date, and you get years, months, days, and even hours and minutes broken out precisely. It also shows a countdown to the next birthday.
Frequently asked questions
Yes. The underlying JavaScript Date math handles leap years and month lengths automatically.
Yes — set the 'as of' date to any point in the past or future.